Multiquip Portable Generator DCA 25USI2XF User Manual

PARTS AND OPERATION MANUAL  
OPERATION AND PARTS MANUAL  
ULTRA-SILENTTM SERIES  
MODEL DCA-25USIXF  
MODEL DCA-25USI2XF  
60 Hz GENERATOR  
PARTS LIST NO. M1873400004A (DCA-25USI)  
PARTS LIST NO. M1873400204A (DCA-25USI2)  
Revision #1 (05/08/09)  
To find the latest revision of this  
publication, visit our website at:  
THIS MANUAL MUST ACCOMPANYTHE EQUIPMENT AT ALLTIMES.  
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DCA-25USIXF/DCA-25USI2XF— PROPOSITION 65WARNING  
Diesel engine exhaust and some of  
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DCA-25USIXF/DCA-25USI2XFTABLE OF CONTENTS  
COMPONENT DRAWIMGS  
MQ POWER DCA-25USIXF/25USI2XF  
60 HZ ULTRA-SILENT GENERATORS  
Generator Assembly.................................................. 52-53  
Control Box Assembly, DCA-25USI .......................... 54-57  
Control Box Assembly, DCA-25USI .......................... 58-61  
Engine and Radiator Assembly, DCA-25USI ............. 58-61  
Engine and Radiator Assembly, DCA-25USI2 ........... 66-69  
Output Terminal Assembly......................................... 70-71  
Battery Assembly ...................................................... 72-73  
Muffler Assembly, DCA-25USI .................................. 74-75  
Muffler Assembly, DCA-25USI2 ................................ 76-77  
Fuel Tank Assembly .................................................. 78-79  
Enclosure Assembly, DCA-25USI ............................. 80-85  
Enclosure Assembly, DCA-25USI2 ........................... 86-91  
Rubber Seals Assembly ............................................ 92-93  
Nameplate and Decals .............................................. 94-95  
Proposition 65 Warning............................................... 2  
Table Of Contents ....................................................... 3  
Parts Ordering Procedures ........................................ 4  
Specifications .............................................................. 5  
Dimensions(Top, Side, Front)..................................... 6  
Safety Message Alert Symbols ............................... 7-8  
Rules for Safe Operation ....................................... 9-13  
Generator Decals.................................................14-15  
Installation ............................................................16-17  
General Information.................................................. 18  
Major Components ................................................... 19  
Generator Control Panel........................................... 20  
Engine Operating Panel............................................ 21  
Output Terminal Panel Familiarization.................22-24  
Load Application........................................................ 25  
Gauge Reading/Terminal Panel Connections ....26-27  
Output Terminal Panel Connections....................28-29  
Setup ....................................................................30-33  
Generator Start-up Procedure ............................34-36  
Generator Shut-down Procedure............................. 37  
Maintenance.........................................................38-39  
Trailer Maintenance .............................................40-42  
Trailer Wiring Diagram .............................................. 43  
Engine Wiring Diagram ........................................44-45  
Generator Wiring Diagram ....................................... 46  
Engine Troubleshooting .......................................47-48  
Generator Troubleshooting....................................... 49  
Explanation of Code in Remarks Column ....................... 50  
Suggested Spare Parts .................................................. 51  
Terms and Condition of Sale — Parts ............................ 80  
Specifications are subject to  
NOTE  
change without notice.  
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DCA-25USIXF/DCA-25USI2XF— PARTS ORDERING PROCEDURES  
Ordering parts has never been easier!  
Choose from three easy options:  
Effective:  
Order via Internet (Dealers Only)  
Orderpartson-lineusingMultiquip’sSmartEquipwebsite!  
:
If you have an MQ Account, to obtain a  
Username and Password, E-mail us at:  
View Parts Diagrams  
Order Parts  
To obtain an MQ Account, contact your  
Use the internet and qualify for a 5% Discount  
on Standard orders for all orders which include  
Gotowww.multiquip.comandclickon  
to log in and save!  
Order Parts  
Note: Discounts Are Subject To Change  
Fax your order in and qualify for a 2% Discount  
on Standard orders for all orders which include  
Order via Fax (Dealers Only)  
:
All customers are welcome to order parts via Fax.  
Domestic (US) Customers dial:  
Note: Discounts Are Subject To Change  
Domestic (US) Dealers Call:  
Order via Phone:  
Non-Dealer Customers:  
Contact your local Multiquip Dealer for  
parts or call 800-427-1244 for help in  
International Customers should contact  
their local Multiquip Representatives for  
When ordering parts, please supply:  
Specify Preferred Method of Shipment:  
Dealer Account Number  
UPS/Fed Ex  
DHL  
Dealer Name and Address  
Priority One  
Ground  
Truck  
Shipping Address (if different than billing address)  
Return Fax Number  
Applicable Model Number  
Next Day  
AllordersaretreatedasStandardOrders  
andwillshipthesamedayifreceivedprior  
WE ACCEPT ALL MAJOR CREDIT CARDS!  
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DCA-25USIXF/DCA-25USI2XF— SPECIFICATIONS  
Table 1. Generator Specifications  
Model  
Type  
DCA-25USIXF/DCA-25USI2XF  
Revolving field, self ventilated, open protected type synchronous generator  
Armature Connection  
Phase  
Star with Neutral  
3
Zig Zag  
Single  
Standby Output  
Prime Output  
Voltage  
26.5 KVA (21.2 KW)  
25 KVA (20 KW)  
240V or 480V  
15.3 KW  
14.4 KW  
240/120V  
Frequency  
Speed  
60 Hz  
1,800 rpm  
Power Factor  
Aux. AC Power  
Voltage  
0.8  
1
Single Phase, 60 Hz  
120 VAC  
Output  
4.8 KW (2.4 KW x 2)  
Table 2. Engine Specifications  
ISUZU AA-4LE21 Tier 2  
Model  
Type  
ISUZU BV-4LE22 Tier4  
4 Cycle, water-cooled, direct injection  
4 cylinders  
No. of Cylinders  
Bore x Stroke  
Rated Output  
Displacement  
Starting  
3.35 in. x 3.78 in. (85 mm x 96 mm)  
34.3 HP/1,800 rpm  
133 cu. in. (2,179 cc)  
Electric  
Coolant Capacity  
Lube Oil Capacity  
Fuel Tank Capacity  
1.7 gal. (6.4 liters)  
2.25 gal. (8.5 liters)  
106 gal. (400 liters)  
1.44 gal. (5.47 L)/hr at full load1  
1.64 gal. (6.23 L)/hr at full load2  
0.86 gal. (3.28 L)/hr at 1/2 load2  
1.20 gal. (4.57 L)/hr at 3/4 load2  
0.57 gal. (2.17 L)/hr at 1/4 load2  
1.05 gal. (3.99 L)/hr at 3/4 load1  
0.74 gal. (2.81 L)/hr at 1/2 load1  
0.45 gal. (1.70 L)/hr at 1/4 load1  
Fuel Consumption  
Fuel  
#2 Diesel Fuel  
Battery  
12V 53Ah X 1  
2,200 lbs. (1,000 kg.)1 Dry  
2,973 lbs. (1,349 kg.)1 Wet  
2,249 lbs. (1,020 kg.)2 Dry  
3,021 lbs. (1,370 kg.)2 Wet  
Weight  
DCA25USIXF1  
DCA25USI2XF2  
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DCA-25USIXF/DCA-25USI2XF— DIMENSIONS (TOP, SIDE AND FRONT)  
TABLE 3. DIMENSIONS  
Reference  
Dimension in. (mm.) Reference Letter Dimension in. (mm.)  
Letter  
A
B
C
D
E
27.30 in. (695 mm.)  
25.59 in. (650 mm.)  
22.64 in. (575 mm.)  
24.80 in. (630 mm.)  
20.90 in. (530 mm.)  
F
G
H
86.20 in. (2,190 mm.)  
56.90 in. (1,445 mm.)  
31.10 in. (790 mm.)  
PAGE 6 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF/DCA-25USI2XF— SAFETY MESSAGE ALERT SYMBOLS  
FORYOUR SAFETY ANDTHE SAFETY OF OTHERS!  
HAZARD SYMBOLS  
Potential hazards associated with the operation of this  
equipment will be referenced with "Hazard Symbols" which  
appear throughout this manual, and will be referenced in  
conjunction with Safety "Message Alert Symbols".  
Safety precautions should be followed at all times when  
operating this equipment.Failure to read and understand the  
Safety Messages and Operating Instructions could result in  
injury to yourself and others.  
This Operation Manual has  
been developed to provide  
WARNING - LETHAL EXHAUST GASES  
NOTE  
complete instructions for the  
safe and efficient operation of  
the generator.  
Diesel engine exhaust gases contain  
poisonous carbon monoxide. This gas is  
colorless and odorless, and can cause  
DEATH if inhaled. NEVER operate this  
equipment in a confined area or enclosed structure that  
does not provide ample free flow air.  
Before using this generator, ensure that the operating  
individual has read and understands all instructions in  
this manual.  
WARNING - EXPLOSIVE FUEL  
SAFETY MESSAGE ALERT SYMBOLS  
Diesel fuel is extremely flammable, and  
its vapors can cause an explosion if  
ignited. DO NOT start the engine near  
spilled fuel or combustible fluids.  
DO NOT fill the fuel tank while the engine  
is running or hot.  
The three (3) Safety Messages shown below will inform you  
about potential hazards that could injure you or others. The  
Safety Messages specifically address the level of exposure  
to the operator, and are preceded by one of three words:  
DANGER, WARNING, or CAUTION.  
DO NOT overfill tank, since spilled fuel could ignite if it  
comes into contact with hot engine parts or sparks from  
the ignition system. Store fuel in approved containers, in  
well-ventilated areas and away from sparks and flames.  
NEVER use fuel as a cleaning agent.  
DANGER  
You WILL be KILLED or SERIOUSLY injured if you  
do not follow directions.  
WARNING  
WARNING - BURN HAZARDS  
Engine components can generate extreme  
heat.To prevent burns, DO NOT touch these  
areas while the engine is running or  
immediately after operations. NEVER  
operate the engine with heat shields or heat  
guards removed.  
You COULD be KILLED or SERIOUSLY injured if  
you do not follow directions.  
CAUTION  
You CAN be injured if you do not follow directions  
DANGER - ELECTROCUTION HAZARDS  
During operation of this generator, there  
exists the possibility of electrocution,  
electrical shock or burn, which can cause  
severe bodily harm or even DEATH!  
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DCA-25USIXF/DCA-25USI2XF— SAFETY MESSAGE ALERT SYMBOLS  
WARNING - ROTATING PARTS  
CAUTION - RESPIRATORY HAZARDS  
NEVER operate equipment with covers,  
ALWAYS wear approved respiratory  
protection.  
or guards removed. Keep fingers, hands,  
hair and clothing away from all moving  
parts to prevent injury.  
CAUTION - ACCIDENTAL STARTING  
CAUTION - SIGHT AND HEARING HAZARDS  
ALWAYS place the Engine ON/OFF  
switch in the OFF position and remove  
the ignition key when the pump is not in  
use.  
ALWAYS wear approved eye and  
hearing protection.  
CAUTION - OVER-SPEED CONDITIONS  
CAUTION - EQUIPMENT DAMAGE MESSAGES  
NEVER tamper with the factory settings  
of the engine governor or settings.  
Personal injury and damage to the engine  
or equipment can result if operating in  
speed ranges above maximum allowable.  
Other important messages are provided throughout this  
manual to help prevent damage to your generator, other  
property, or the surrounding environment.  
CAUTION - ENGINE LOAD (WET-STACKING)  
Wet-Stacking is a common problem with diesel engines  
which are operated for extended periods with light or no  
load applied. When a diesel engine operates without  
sufficient load (less than 40% of the rated output) it will  
not operate at its optimum temperature. This will allow  
unburned fuel to accumulate in the exhaust system, which  
can foul the fuel injectors, engine valves and exhaust  
system, including turbocharges, and reduce the operating  
performance.  
This generator, other property, or  
the surrounding environment  
could be damaged if you do not  
follow instructions.  
In order for a diesel engine to operate at peak efficiency it  
must be able to provide fuel and air in the proper ratio and  
at a high enough engine temperature for the engine to  
completely burn all of the fuel.  
Wet stacking does usually cause any permanent damage  
and can be alleviated if additional load is applied to relieve  
the condition. It can reduce the system performance and  
increase maintenance. Applying an increasing load over a  
period of time until the excess fuel is burned off and the  
system capacity is reached usually can repair the condition.  
This can take several hours to burn off the accumulated  
unburned fuel.  
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DCA-25USIXF/DCA-25USI2XF— RULES FOR SAFE OPERATION  
NEVER use accessories or attachments, which are not  
recommended by Multiquip for this equipment. Damage  
to the equipment and/or injury to user may result.  
DANGER - READTHIS MANUAL!  
Failure to follow instructions in this manual may lead to  
serious injury or even DEATH! This equipment is to be  
operated by trained and qualified personnel only! This  
equipment is for industrial use only.  
NEVER touch the hot exhaust  
manifold, muffler or cylinder.Allow  
these parts to cool before  
servicing engine or generators.  
The following safety guidelines should always be used when  
operating the generator.  
General Safety:  
DO NOT operate or service this  
equipment before reading this entire  
manual.  
The engine section of this generators requires an adequate  
free flow of cooling air. NEVER operate the generators in  
any enclosed or narrow area where free flow of the air is  
restricted. If the air flow is restricted it will cause serious  
damage to the generators  
The operator MUST BE familiar with proper safety  
precautions and operations techniques before using  
generator.  
This equipment should not be operated by persons under  
18 years of age.  
or engine and may cause  
injury  
to  
people.  
NEVER operate this equipment without proper protective  
clothing, shatterproof glasses, steel-toed boots and other  
protective devices required by the job.  
Remember the generator's  
engine gives off DEADLY  
carbon monoxide gas.  
Denyo  
DANGEROUS  
GAS FUMES  
ALWAYS refuel in a well-ventilated area, away from sparks  
and open flames.  
NEVER operate this equipment when not  
feeling well due to fatigue, illness or taking  
medicine.  
ALWAYS use extreme caution when  
working with flammable liquids. When  
refueling, stop the engine and allow it to  
cool.DO NOT smoke around or near the  
machine. Fire or explosion could result  
from fuel vapors, or if fuel is spilled on a  
hot engine.  
NEVER operate this equipment under the influence or  
drugs or alcohol.  
NEVER operate the generator in an  
explosive atmosphere or near  
combustible materials. An explosion or  
fire could result causing severe bodily  
harm or even death.  
ALWAYS wear proper respiratory (mask),  
hearing and eye protection equipment when  
operating the generator.  
NEVER disconnect any "emergency or safety devices".  
These devices are intended for operator safety. Disconnection  
of these devices can cause severe injury, bodily harm or even  
death! Disconnection of any of these devices will void all  
warranties.  
Whenever necessary, replace nameplate, operation and  
safety decals when they become difficult read.  
Manufacturer does not assume responsibility for any  
accident due to equipment modifications. Unauthorized  
equipment modification will void all warranties.  
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DCA-25USIXF/DCA-25USI2XF— RULES FOR SAFE OPERATION  
ALWAYS be sure the operator is familiar with proper safety  
precautions and operation techniques before using  
generators.  
Maintenance Safety  
NEVER lubricate components or attempt service on a running  
machine.  
NEVER leave the generator unattended, turn off engine when  
unattended.  
HighTemperatures – Always stop engine and  
allow the engine to cool before adding fuel, oil  
or performing service and maintenance  
functions. Contact with hot! components can  
cause serious burns.  
Unauthorized equipment modifications will void all warranties.  
ALWAYS ensure generator is on level ground before use.  
DO NOT place hands or fingers inside generators engine  
compartment when engine is running.  
Keep the machinery in proper running condition.  
Fix damage to the machine immediately and replace any  
broken parts immediately.  
NEVER run engine without air cleaner.Severe engine damage  
may occur.  
ALWAYS replace any worn or damaged warning decals.  
NEVER change or adjust the engine speed which has been  
set at the factory prior to shipping.  
ALWAYS store equipment properly when it is not being used.  
Equipment should be stored in a clean, dry location out of the  
reach of children and un-authorized personnel.  
Power Cord Safety  
The electrical voltage required to operate the generator can  
cause severe injury or even death through physical contact  
with live circuits. Turn all circuit breakers OFF before  
performing maintenance on the generator.  
NEVER let power cables or cords lay in water.  
NEVER stand in water while AC power from the generators  
is being transfer to a load.  
Dispose of hazardous waste properly. Examples of potentially  
hazardous waste are used motor oil, fuel and fuel filters.  
NEVER use a defective or frayed power cable. Check the  
cable for cuts in the insulation.  
DO NOT use food or plastic containers to dispose of  
hazardous waste.  
NEVER use a extension cord that is frayed or damaged where  
the insulation has been cut.  
DO NOT pour waste, oil or fuel directly onto the ground,  
down a drain or into any water source.  
ALWAYS make certain that proper power or extension cord  
has been selected for the job See Table 6.  
ALWAYS allow the machine a proper amount of time to  
cool before servicing.  
Grounding Safety  
ALWAYS service air cleaner frequently to prevent engine  
malfunction.  
ALWAYS make sure that electrical circuits are properly  
grounded per the National Electrical Code (NEC) and  
local codes before operating generator. Severe injury or  
death! by electrocution can result from operating an  
ungrounded generator.  
ALWAYS disconnect the NEGATIVE battery terminal  
before performing service on the generator.  
Follow all battery safety guidelines listed in this manual  
when handleing or servicing the generator.  
ALWAYS make sure the generators are properly grounded to  
a suitable earth ground (GROUND ROD). See installation in  
this manual.  
NEVER use gas piping as an electrical ground.  
PAGE 10 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF/DCA-25USI2XF— RULES FOR SAFE OPERATION  
Battery Safety  
WARNING - BURN HAZARDS  
Use the following guidelines when handling the battery:  
To prevent burns, DO NOT touch or open any of the below  
mentioned components while the engine is  
running or immediately after operations.  
Always allow sufficient time for the engine  
and generator to cool before performing  
maintenance.  
The battery contains acids that can  
cause injury to the eyes and skin. To  
avoid eye irritation, always wear safety  
glasses.  
Use well insulated gloves when picking up the battery.  
Radiator Cap - Removing the radiator cap while the  
engine is hot will result in high pressurized, boiling water  
to gush out of the radiator, causing severe scalding to  
any persons in the general area of the generator.  
DANGER - EXPLOSION HAZARDS  
The risk of an explosion exists when performing service  
on the battery. To avoid severe injury or DEATH:  
Coolant Drain Plug - Removing the  
coolant drain plug while the engine is  
hot will result in hot coolant gushing  
out of the coolant drain plug, therefore  
causing severe scalding to any persons  
in the general area of the generator.  
DO NOT drop the battery.There  
is the possibility of risk that the  
battery may explode.  
DO NOT expose the battery to  
open flames, sparks, cigarettes  
etc.The battery contains combustible gases and liquids.  
If these gases and liquids come in contact with a flame  
or spark, an explosion could occur.  
Engine Oil Drain Plug - Removing the engine oil drain  
plug while the engine is hot will result in hot oil gushing  
out of the oil drain plug, therefore causing severe  
scalding to any persons in the general area of the  
generator.  
ALWAYS keep the battery charged. If the battery is not  
charged a buildup of combustible gas will occur.  
ALWAYS keep battery charging and cables in good  
working condition. Repair or replace all worn cables.  
ALWAYS recharge the battery in an vented air  
environment, to avoid risk of a dangerous concentration  
of combustible gases.  
In case the battery liquid (dilute sulfuric acid) comes in  
contact with clothing or skin, rinse skin or clothing  
immediately with plenty of water.  
In case the battery liquid (dilute sulfuric acid) comes in  
contact with your EYES, rinse eyes immediately with  
plenty of water and contact the nearest doctor or hospital  
to seek medical attention.  
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DCA-25USIXF/DCA-25USI2XF— RULES FOR SAFE OPERATION  
DANGER-Electrocution Hazards  
DANGER-Lethal Exhaust Gas Hazards  
During operation of this generation, there  
exists the possibility of electrocution,  
electrical shock or burn, which can  
cause severe bodily harm or even  
DEATH!  
Engine exhaust gases contain  
poisonous carbon monoxide. This gas  
is colorless and odorless, and can  
cause death if inhaled. NEVER operate  
this equipment in a confined area or  
enclosed structure that does not provide  
ample free flow air.  
To avoid these hazards:  
NEVER use damaged or worn cables when connecting  
equipment to the generator.Make sure power connecting  
cables are securely connected to the generator’s output  
receptacles, incorrect connections may cause damage  
to the generators and electrical shock.  
DANGER  
Using a generator indoors CAN KILL YOU IN MINUTES.  
Generator exhaust contains carbon monoxide. This is  
a posion you cannot see or smell  
20A  
120  
2900  
V
GA-9
120V  
A
B
 C
C
I
R
K
E
U
R
I
T
NEVER grab or touch a live  
power cord with wet hands, the  
possibility exist of electrical  
shock, electrocution, and even  
death!  
20A  
20A  
120  
120  
2900  
900  
V
V
ON  
GA-
GA-2
120V  
A
BR  
E
I
I
R
K
C
E
U
 R
I
T
120V  
A
BR  
  E
E
I
R
K
E
U
OFF  
ON  
ON  
OFF  
OFF  
Only use OUTSIDE and  
far away from windows,  
doors, and vents.  
NEVER use inside a home  
or garage, even if doors  
and windows are open  
Avoid other generator hazards.  
READ MANUAL BEFORE USE.  
Emergencies  
NEVER insert any objects into  
the output receptacles during  
operation. This is extremely  
ALWAYS know the location of the  
nearest fire extinguisher.  
dangerous. ALWAYS turn-off  
the generators and place all circuit breakers in the “OFF”  
position when contact with the output receptacles is  
required. There exist the possibility of electrocution,  
electrical shock or burn, which can cause severe  
bodily harm or even death!  
ALWAYS know the location of the nearest  
first aid kit.  
In emergencies always know the location of the  
nearest phone or keep a phone on the job site.  
Also know the phone numbers of the nearest  
ambulance, doctor and fire department. This  
information will be invaluable in the case of an  
emergency.  
Backfeed to a utility system can cause  
electrocution and or property damage.  
NEVER connect the generators to a  
building's electrical system without a  
transfer switch or other approved device.  
All installations should be performed by  
a licensed electrician in accordance  
with all applicable laws and electrical  
codes. Failure to do so could result in  
electrical shock or burn causing serious  
injury or even death!  
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DCA-25USIXF/DCA-25USI2XF— RULES FOR SAFE OPERATION  
DOT Requirements include the following:  
If your generator is trailer mounted, please  
read the towing and safety requirements  
listed below.  
Connect and test electric brake operation.  
Secure portable power cables in cable tray with tie  
wraps.  
The maximum speed for highway towing is 55 MPH  
unless posted otherwise. Recommended off-road towing  
is not to exceed 15 MPH or less depending on type of  
terrain.  
Towing andTransporting Safety  
To reduce the possibility of an accident while transporting  
the generator on public roads, always make sure the trailer  
that supports the generator and the towing vehicle are in  
good operating condition and both units are mechanically  
sound.  
Place chock blocks underneath wheel to prevent rolling,  
while parked.  
Use the trailer’s swivel jack to adjust the trailer height to  
a level position while parked.  
The following list of safety precautions should be followed  
when towing your generator:  
Avoid sudden stops and starts.This can cause skidding,  
or jack-knifing. Smooth, gradual starts and stops will  
improve towing.  
CAUTION - FOLLOWTOWING REGULATIONS  
Avoid sharp turns.  
Check with your local county or state safety towing  
regulations, in addition to meeting Department of  
Transportation (DOT) SafetyTowing Regulations, before  
towing your generator.  
Trailer should be adjusted to a level position at all times  
when towing.  
Raise and lock trailer wheel stand in up position when  
transporting.  
ALWAYS shutdown engine before transporting.  
The maximum speed for highway towing is 55 MPH  
unless posted otherwise. Recommended off-road towing  
is not to exceed 15 MPH or less depending on type of  
terrain.  
Drain fuel from generator fuel tank before towing.  
If generator is mounted on a trailer, make sure trailer  
complies with all local and state safety transportation  
laws. Follow the listed Towing & Transporting Safety  
guidelines for basic towing techniques.  
Place support blocks underneath the trailer’s bumper to  
prevent tipping, while parked.  
Make sure the hitch and coupling of the towing vehicle  
are rated equal to, or greater than the trailer "gross vehicle  
weight rating.”  
Avoid sharp turns to prevent rolling.  
DO NOT transport generator with fuel in tank.  
ALWAYS inspect the hitch and coupling for wear. NEVER  
tow a trailer with defective hitches, couplings, chains etc.  
Check the tire air pressure on both towing vehicle and  
trailer. Trailer tires should be inflated to 50 psi cold.  
Also check the tire tread wear on both vehicles.  
For more saftey tips, see the trailer saftey  
guidelines section in this manual.  
ALWAYS make sure the trailer is equipped with a "Safety  
Chain".  
ALWAYS attach trailer’s safety chains to towing vehicle  
properly.  
ALWAYS make sure the vehicle and trailer directional,  
backup, brake, and trailer lights are connected and  
working properly.  
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DCA-25USIXF/DCA-25USI2XF— DECALS  
Figure 2. Generator Decals  
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DCA-25USIXF/DCA-25USI2XF— DECALS  
1
Figure 3. Generator Decals (Continued)  
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DCA-25USIXF/DCA-25USI2XF— INSTALLATION  
Figure 4.Typical Generator Grounding Application  
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DCA-25USIXF/DCA-25USI2XF— INSTALLATION  
Outdoor Installation  
Generator Grounding  
Install the generator in a area that is free of debris, To guard against electrical shock and possible damage to  
bystanders, and overhead obstructions. Make sure the the equipment, it is important to provide a good EARTH  
generator is on secure level ground so that it cannot slide or ground.  
shift around. Also install the generator in a manner so that  
Article 250 (Grounding) of the National Electrical Code (NEC)  
the exhaust will not be discharged in the direction of nearby  
provides guide lines for proper grounding and specifies that  
homes.  
the cable ground shall be connected to the grounding system  
The installation site must be relatively free from moisture of the building as close to the point of cable entry as  
and dust. All electrical equipment should be protected from practical.  
excessive moisture. Failure to do will result in deterioration  
of the insulation and will result in short circuits and grounding.  
grounding requirements:  
NEC articles 250-64(b) and 250-66 set the following  
Foreign materials such as dust, sand, lint and abrasive  
1. Use one of the following wire types to connect the  
materials have a tendency to cause excessive wear to  
generator to earth ground.  
engine and alternator parts.  
a. Copper - 10 AWG (5.3 mm2) or larger.  
b. Aluminum - 8 AWG (8.4 mm2) or larger.  
CAUTION - EXHAUST HAZARD  
2. When grounding the generator (Figure 4) connect the  
ground cable between the lock washer and the nut on  
the generator and tighten the nut fully.Connect the other  
end of the ground cable to earth ground.  
Pay close attention to ventilation when operating the  
generator inside tunnels and caves. The engine exhaust  
contains noxious elements. Engine exhaust must be routed  
to a ventilated area.  
3. NEC article 250-52(c) specifies that the earth ground  
rod should be buried aminimum of 8 ft. into the ground.  
Indoor Installation  
Exhaust gases from diesel engines are extremely poisonous.  
Whenever an engine is installed indoors the exhaust fumes  
must be vented to the outside.The engine should be installed  
at least two feet from any outside wall. Using an exhaust  
pipe which is too long or too small can cause excessive  
back pressure which will cause the engine to heat excessively  
and possibly burn the valves.  
When connecting the generator  
to any buildings electrical  
system ALWAYS consult with  
a licensed electrician.  
NOTE  
Mounting  
The generator must be mounted on a solid foundation (such  
as concrete) and set firmly on the foundation to isolate  
vibration of the generator when it is running. The generator  
must set at least 6 inches above the floor or grade level (in  
accordance to NFPA 110, Chapter 5-4.1). DO NOT remove  
the metal skids on the bottom of the generator. They are to  
resist damage to the bottom of the generator and to maintain  
alignment.  
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DCA-25USIXF/DCA-25USI2XF— GENERAL INFORMATION  
FAMILIARIZATION  
Generator  
Open Delta Excitation System  
This generator is equipped with the state of the art "Open-Delta"  
excitation system.The open delta system consist of an electrically  
independent winding wound among stationary windings of the AC  
output section.  
The MQ Power DCA-25USIXF/DCA-25USI2XF Ultra-Silent  
generators (Figure 5) are 56 kW generators that are designed  
as a high quality portable (requires a trailer for transport) power  
source for telecom sites, lighting facilities, power tools,  
submersible pumps and other industrial and construction  
machinery.  
There are four connections of the open delta A, B, C and D.During  
steady state loads, the power from the voltage regulator is supplied  
fromtheparallelconnectionsofAtoB, AtoD, andCtoD.Thesethree  
phases of the voltage input to the voltage regulator are then rectified  
and are the excitation current for the exciter section.  
Engine Operating Panel  
The “Engine Operating Panel” is provided with the following:  
When a heavy load, such as a motor starting or a short circuit occurs,  
the automatic voltage regulator (AVR) switches the configuration of  
the open delta to the series connection of B to C.This has the effect  
of adding the voltages of each phase ot provide higher excitation to  
the exciter section and thus better voltage response during the  
application of heavy loads.  
Tachometer  
WaterTemperature Gauge/ Alarm Lamp  
Oil Pressure Gauge/ Alarm Lamp  
Charging Ammeter Gauge  
Pre-Heat Lamp  
Panel Light  
Panel Light Switch  
Ignition/Preheat Switch  
Fuel Gauge  
Fuel Filter Water Level Alarm Lamp  
Fuel Leak Detected Alarm Lamp  
The connections of the AVR to the AC output windings are for  
sensing only.No power is required from these windings.  
The open-delta design provides virtually unlimited excitation current,  
offering maximum motor starting capabilities.The excitation does  
not have a "fixed ceiling" and responds according the demands of  
the required load.  
Generator Control Panel  
Engine  
The “Generator Control Panelis provided with the following:  
These generator’s are powered by two different types of diesel  
engines depending on the model of the generator. Both engines are  
4 cycle, water cooled, direct injection types. The DCA25USIXF  
incorporates an ISUZU AA-4LE2 diesel engine, while the  
DCA25USI2XF incorporates an ISUZU BB-4LE2 diesel engine.  
Theseenginesaredesignedtomeeteveryperformancerequirement  
for the generator.ReferenceTable 2 for engine specifications.  
Frequency Meter (Hz)  
AC Ammeter (Amps)  
AC Voltmeter (Volts)  
Ammeter Change-Over Switch  
Voltmeter Change-Over Switch  
Voltage Regulator  
3-Pole, 60 amp Main Circuit Breaker  
In keeping with Multiquip's policy of constantly improving its products,  
the specifications quoted herein are subject to change without prior  
notice.  
Output Terminal Panel  
The “Output Terminal Panel” is provided with the following:  
The basic controls and indicators for the generator are addressed  
on the following pages.  
Two 250VAC output receptacles (CS-6369), 50 amps  
Two auxilliary circuit breakers, 250V @50 amps  
Two 125 VAC output receptacles, (GFCI), 20 amps  
Two GFCI circuit breakers, 125V@ 20amps  
Five output terminal lugs (3Ø power)  
Mechanical Governor System  
The mechanical governor system control the RPM of the engine.  
When the engine demands increase or decrease, the mechanical  
governor system regulates the frequency variation to .5%. The  
electronic governor option increases frequency variation to 0.25%.  
Control Box  
Extension Cables  
The “Control Box” is provided with the following:  
When electric power is to be provided to various tools or loads at  
some distance from the generator, extension cords are normally  
used. Cables should be sized to allow for distance in length and  
amperage so that the voltage drop between the generator and point  
of use (load) is held to a minimum. Use the cable selection chart  
(Table 6 ) as a guide for selecting proper extension cable size.  
Automatic Voltage Regulator  
CurrentTransformer  
Emergency Relay  
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DCA-25USIXF/DCA-25USI2XF— MAJOR COMPONENTS  
mponents  
N  
4
5
6
7
8
Output Terminal Assembly  
Generator Assembly  
Figure 5. Major Components  
Battery Assembly  
Generator Control Panel Assembly  
Engine Operating Panel Assembly  
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DCA-25USIXF/DCA-25USI2XF— GENERATOR CONTROL PANEL  
Figure 6. Generator Control Panel  
Located behind the generator control panel is the Generator  
Control Box. This box contains some of the necessary  
electronic components required to make the genertator  
function.  
The definitions below describe the controls and functions of  
the "Generator Control Panel " (Figure 6).  
1. Frequency Meter – Indicates the output frequency in  
hertz (Hz). Normally 60 Hz 1 Hz.  
The “Control Box” is equipped with the following major  
components:  
2. Voltage Regulator Control – Allows 15% manual  
adjustment of the generator’s output voltage.  
Over-Current Relay  
Voltage Rectifer  
Starter Relay  
Three Pole Circuit Breaker  
CurrentTransformer  
Voltage Selector Switch  
3. Ammeter Change-Over Switch This switch allows  
the AC ammeter to indicate the current flowing to the  
load connected to any phase of the output terminals, or  
to be switched off. This switch does not effect the  
generator output in any fashion, it is for current reading  
only.  
Remember the overcurrent relay  
4. Main Circuit Breaker – This three-pole, 60 amp main  
breaker is provided to protect the UVWO output  
terminals from overload.  
monitors the current flowing from  
the UWVO output terminals to the  
load.  
5. Voltmeter Change-Over Switch This switch allows  
the AC voltmeter to indicate phase to phase voltage  
between any two phases of the output terminals or to  
be switched off.  
NOTE  
In the event of a short circuit or  
over current condition, it will  
automatically trip the main 60  
amp breaker.  
6. AC Voltmeter Indicates the output voltage present  
at the UVWO terminals.  
To restore power to the UWVO output terminals, press the  
reset button on the overcurrent relay and place the main  
circuit breaker in the closed position (ON).  
7. AC Ammeter Indicates the amount of current the  
load is drawing from the generator per leg selected by  
the ammeter phase-selector switch.  
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DCA-25USIXF/DCA-25USI2XF— ENGINE OPERATING PANEL  
Figure 7. Engine Operating Panel  
7. Charging Ammeter Gauge – Indicates the current  
being supplied by the engine’s alternator which provides  
current for generator’s control circuits and battery  
charging system.  
The definitions below describe the controls and functions of  
the "Engine Operating Panel " (Figure 7).  
1. Panel Light - Normally used in dark places or at night.  
When activated, panel will luminate. When the generator  
is not in use, turn the panel light switch to the OFF  
position.  
8. Fuel Gauge - Indicates amount of diesel fuel available.  
9. Tachometer – Indicates engine speed in RPM’s for  
60 Hz operation.This meter should indicate 1800 RPM’s  
when the rated load is applied. In addition a built in hour  
meter will record the number of operational hours that  
the generator has been in use.  
2. Water Temperature Lamp - Indicates that the water  
temperature is outside of normal range and will shut  
down the engine.  
3. Oil Pressure Lamp - Indicates that the oil pressure is  
10. Ignition Switch – Four position switch, pre-heat, stop,  
too low or high and will shut down the engine.  
run and start. Insert ignition key to start and stop engine.  
4. Fuel FilterWater Level Alarm Lamp - This lamp turns  
on when the water level in the fuel filter rises too high.  
Drain the water in the fuel filter strainer to correct the  
problem.  
11. Pre-Heat Lamp - Indicates (ON) when the engine is  
ready for starting during cold weather operating  
conditiions.  
12. Fuel Leak Detected Alarm Lamp - This lamp will  
illuminate when a leak in the fuel containment enclosure  
is detected.  
5. Oil Pressure Gauge – Normal operation should be  
approximately 28~71 psi (193~490 kPa). When starting  
the generator the oil pressure may read a bit higher, but  
after the engine warms up the oil pressure should return  
to normal.  
13. Panel Light Switch-When activated, will turn on control  
panel light.  
6. WaterTemperature Gauge – During normal operation this  
gauge should read between 165°~203° F. (74°~95° C).  
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DCA-25USIXF/DCA-25USI2XF— OUTPUT TERMINAL PANEL  
FAMILIARIZATION  
OutputTerminal Panel  
Output Terminal Familiarization  
The OutputTerminal Panel (Figure 8) shown below is located The “OutputTerminal Panel ” (Figure 6) is provided with the  
on the right-hand side (left from control panel) of the generator. following:  
Lift up on the cover to gain access to receptacles and terminal  
lugs.  
Two (2) 120/240V output receptacles @ 50 amp  
Two (2) Circuit Breakers @ 50 amps  
Two (2) 120V GFCI receptacles @ 20 amp  
Two (2) GFCI Circuit Breakers @ 20 amps  
Five (5) Output Terminal Lugs ( U, V, W, O, Ground)  
One Main Circuit Breaker @60 amps  
Terminal legs “O” and “Ground”  
are considered bonded grounds.  
NOTE  
Figure 8. Output Terminal Panel  
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DCA-25USIXF/DCA-25USI2XF— OUTPUT TERMINAL PANEL  
Each auxilliary receptacle isFprAotMectIeLdIbAyRa I5Z0AamTpIOcirNcuit  
120VAC GFCI Receptacles  
breaker.These breakers are located directly above the GFCI  
receptacles. Remember the load output (current) on all three  
receptacles is dependent on the load requirements of the  
OutputTerminal Lugs.  
There are two 120VAC, 20 amp GFCI (Duplex Nema 5-20R)  
recepacles provided on the output terminal panel. These  
receptacles can be accessed in any voltage selector switch  
position. Each receptacle is protected by a 20 amp circuit  
breaker.These breakers are located directly above the GFCI  
receptacles. Remember the load output (current) of both  
GFCI receptacles is dependent on the load requirements of  
the U, V, and W output terminal lugs.  
Turn the voltage regulator control knob (Figure 11) on the  
control panel to obtain the desired voltage.Turning the knob  
clockwise will increase the voltage, turning the knob counter-  
clockwise will decrease the voltage.  
Pressing the reset button resets the GFCI receptacle after  
being tripped. Pressing the Test Button (See Figure 9) in  
the center of the receptacle will check the GFCI function.  
Both receptacles should be tested at least once a month.  
Figure 11.Voltage Regulator Control Knob  
Removing the Plastic Face Plate (UVWOTerminals)  
The UVWO terminal lugs are protected by a plastic face  
plate cover (Figure 12). Un-lock the locking latch, and lift the  
terminal cover to gain access to the plastic face plate.  
Remove the screws securing the face plate to the terminal  
enclosure, then lift the plastic hinged face plate.  
Figure 9. G.F.C.I. Receptacle  
After the load wires have been securely attached to the  
UVWO terminals, reinstall the plastic face plate. Place the  
terminal cover in the down position and secure the locking  
latch.  
Twist Lock DualVoltage 120/240VAC Receptacles  
There are three 120/240V, 50 amp auxilliary twist-lock  
(CS-6369) recepacles (Figure 10) provided on the output  
terminal panel.These receptacles can only be accessed  
when the voltage selector switch is placed in the single-  
phase 240/120 position.  
Figure 12. Plastic Face Plate (UVWO Terminals)  
Figure 10. 120/240VTwist-Lock  
Auxiliary Receptacles  
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DCA-25USIXF/DCA-25USI2XF— OUTPUT TERMINAL PANEL  
FAMILIARIZATION  
Connecting Loads  
Over Current Relay  
Loads can be connected to the generator by the UVWO terminal  
lugs or the convienience receptacles. (See Figure 13). Make  
sure to read the operation manual before attempting to connect  
a load to the generator.  
An over current relay (Figure 14) is connected to the main  
circuit breaker. In the event of an overload, both the circuit  
breaker and the over current relay may trip. If the circuit  
breaker can not be reset, the reset button on the over cur-  
rent relay must be pressed. The over current relay is lo-  
cated in the control box.  
To protect the UVWO output terminals from overload, a 3-pole,  
60 amp, main circuit breaker is provided. Make sure to switch  
ALL circuit breakers to the "OFF" position prior to starting the  
engine.  
Figure 14. Over Current Relay  
DANGER - ELECTROCUTION HAZARDS  
This fuse has current running through it any time the engine  
is running. This fuse is NOT connected to the main circuit  
breaker of the generator. Attempting to replace the fuse  
with the engine and/or generator operating  
could result in electrocution and severe  
bodily harm. ALWAYS turn the unit  
completely off before attempting to replace  
or handle this fuse.  
Figure 13. Connecting Loads  
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DCA-25USIXF/DCA-25USI2XF— LOAD APPLICATION/MAXIMUM  
AMPERAGE  
Single Phase Load  
Three Phase Load  
Always be sure to check the nameplate on the generator When calculating the power requirements for 3-phase power  
and equipment to insure the wattage, amperage, frequency  
,
use the following equation:  
and voltage requirements are satisfactorily supplied by the  
generator for operating the equipment.  
Generally, the wattage listed on the nameplate of the  
equipment is its rated output. Equipment may require 130—  
150% more wattage than the rating on the nameplate, as  
the wattage is influenced by the efficiency, power factor and  
starting system of the equipment.  
If 3Ø load (kVA) is not given on  
the equipment nameplate,  
approximate 3Ø load output  
maybedeterminedbymultiplying  
voltage by amperage by 1.732.  
NOTE  
If wattage is not given on the  
equipment's  
name  
plate,  
approximate wattage may be  
determined by multiplying  
nameplate voltage by the  
nameplate amperage.  
Motors and motor-driven  
equipment draw much greater  
current for starting than during  
operation.  
NOTE  
WATTS = VOLTAGE x AMPERAGE  
The power factor of this generator is 0.8. See Table 5 below  
when connecting loads.  
An inadequate size connecting cable which cannot carry the  
required load can cause a voltage drop which can burn out  
the appliance or tool and overheat the cable. See Table 6.  
Table 5. Power Factor By Load  
Type Of Load  
Power Factor  
When connecting a resistance load such as an  
incandescent lamp or electric heater, a capacity of up to  
the generating set’s rated output (kW) can be used.  
Single-phase induction motors  
0.4 - 0.75  
Electric heaters, incandescent  
lamps  
1.0  
0.4 - 0.9  
1.0  
When connecting a fluorescent or mercury lamp, a  
capacity of up to the generating set’s rated output (kW)  
multiplied by 0.6 can be used.  
Fluorescent lamps, mercury lamps  
Electronic devices, communication  
equipment  
When connecting an electric drill or other power tools,  
pay close attention to the required starting current  
capacity.  
Common power tools  
0.8  
Table 6. Cable Selection (60 Hz, Single Phase Operation)  
Load In Watts Maximum Allowable Cable Length  
When connecting ordinary power tools, a capacity of up to  
the generating set’s rated output (kW) multiplied by 0.8 can  
be used.  
Current in  
Amperes  
At 120  
Volts  
At 240  
Volts  
#10 Wire  
#12 Wire  
#14 Wire  
#16 Wire  
2.5  
5
300  
600  
600  
1000 ft.  
500 ft.  
350 ft.  
250 ft.  
150 ft.  
125 ft.  
600 ft.  
300 ft.  
200 ft.  
150 ft.  
100 ft.  
75 ft.  
375 ft.  
200 ft.  
125 ft.  
100 ft.  
65 ft.  
250 ft.  
125 ft.  
100 ft.  
DANGER - ELECTRICAL SYSTEM HAZARDS  
1200  
1800  
2400  
3600  
4800  
7.5  
10  
15  
20  
900  
Before connecting this generator to any building’s electrical  
system, a licensed electrician must install an isolation  
(transfer) switch. Serious damage to the building’s  
electrical system may occur without this transfer switch.  
1200  
1800  
2400  
50 ft.  
CAUTION: Equipment damage can result from low voltage.  
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DCA-25USI — GAUGE READING/TERMINAL PANEL CONNECTIONS  
Voltage Selector Switch  
Maximum Amps  
Table 8 shows the maximum amps the generator can pro-  
vide. DO NOT exceed the maximum amps as listed.  
The voltage selector switch (Figure 15) is located above  
the output terminal panel’s Hard Wire Hook-up Panel. It  
has been provided for ease of voltage selection.  
Table 8. Generator Maximum Amps  
Rated Voltage  
Maximum Amps  
55.5 amps (4 wire)  
27.8 amps (4 wire)  
60 amps  
Single Phase  
120 Volt  
Single Phase  
240 Volt  
Three Phase  
240 Volt  
Three Phase  
480 Volt  
30 amps  
Figure 15. Voltage Selector Switch  
GFCI Receptacle Load Capability  
Voltage Selector Switch Locking Button  
The load capability of the GFCI receptacles is directly re-  
lated to the voltage being supplied at either the output termi-  
nals or the 2 twist lock auxiliary receptacles.  
The voltage selector switch has a locking button to protect  
the generator and load from being switched while the engine  
is running. To lock the voltage selector switch, press and  
hold the red button located at the bottom of the switch.  
Tables 9 and 10 show what amount of current is available at  
the GFCI receptacles when the output terminals and twist  
lock receptacles are in use. Be careful that your load does  
not to exceed the available current capability at the recep-  
tacles.  
CAUTION - CHANGINGVOLTAGES  
NEVER change the position of the voltage selector switch  
while the engine is running. ALWAYS place circuit breaker  
in the open position before selecting voltage.  
Table 9. GFCI Receptacle Load Capability (1Ø)  
KW in Use  
Twist-Lock (CS6369)  
Available Load  
Current (Amps)  
GFCI Duplex NEMA  
5-20R 120V  
1Ø 240/120V  
Generator OutputVoltages  
14.4  
13.2  
12.0  
10.8  
9.6  
0
A wide range of voltages are available to supply voltage for  
many different applications. Voltages are selected by using  
the voltage selector switch (Figure 15). To obtain some of  
the voltages as listed in Table 7 (see below) will require a  
fine adjustment using the voltage regulator (VR) control  
knob located on the control panel.  
5 amps per receptacle  
10 amps per receptacle  
15 amps per receptacle  
20 amps per receptacle  
Table 10. GFCI Receptacle Load Capability (3Ø)  
KVA in Use  
(UVWO Terminals)  
Available Load  
Current (Amps)  
Table 7. Voltages Available  
Three Phase  
GFCI Duplex NEMA  
5-20R 120V  
3Ø 240/480V  
208V  
220V  
240V  
416V  
440V  
254V  
480V  
277V  
25  
0
(Switchable)  
20.8  
16.7  
12.5  
8.4  
5 amps per receptacle  
10 amps per receptacle  
15 amps per receptacle  
20 amps per receptacle  
Single Phase  
(Switchable)  
120V  
127V  
139V  
240V  
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DCA-25USI — GAUGE READING/TERMINAL PANEL CONNECTIONS  
The gauges and selector switches on the control panel Reading Amperage  
DO NOT effect the generator output. They are provided to  
To determine the amperage at a terminal lug, set the  
AC Ammeter Change-Over Switch to the appropriate  
setting (Figure 19) to activate the AC Ammeter Gauge  
help observe how much power is being supplied at the  
Output terminals lugs.  
Before taking a reading from either gauge, set the Voltage (Figure 20 and read the available amperage at the termi-  
Selector Switch (Figure 16) to the position which produces nal lug.  
the required voltage (For example, for 3Ø 240V, choose the  
center 3Ø 240/139V position on  
the voltage selector switch.)  
For example, to measure the amperage at the U  
terminal lug, set the AC Ammeter Change-Over Switch  
to U and read the AC Ammeter Gauge.  
Figure 16. Voltage Selector  
Switch 240/139VThree Phase  
Position  
Figure 20. AC Ammeter  
(Amp reading on U lug)  
Figure 19. AC Ammeter  
Change-Over Switch  
For 3Ø 208V/1Ø,120V, place  
the Voltage Selector Switch  
in the 3 Phase 240/139  
position.  
NOTE  
The ammeter gauge will only  
show a reading when the  
Output Terminal Lugs are  
connected to a load and in use.  
NOTE  
Reading Voltage  
To determine the voltage between two terminal lugs, set the  
AC Voltmeter Change-Over Switch to the appropriate  
setting (Figure 17) to activate the AC Voltmeter Gauge  
(Figure 18) and read the available voltage between the two  
lugs.  
For example, to measure the voltage between the W and U  
terminal lugs, set the AC Voltmeter Change-Over Switch  
to W-U and read the ACVoltmeter Gauge.  
Figure 17. AC Voltmeter  
Change-Over Switch  
Figure 18. AC Voltmeter  
Gauge  
(Volt reading on W-U Lug)  
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DCA-25USIXF/DCA-25USI2XF— OUTPUT TERMINAL PANEL  
CONNECTIONS  
UVWOTerminal OutputVoltages  
3Ø 208V/1Ø120V Output Terminal Lug Voltages  
Various output voltages can be obtained using the Output  
Terminal Lugs. The voltages at the terminals are depen-  
dent on the position of the Voltage Selector Switch and the  
adjustment of the Voltage Regulator Control Knob.  
1. Place the voltage selector switch in the 3Ø 240/139  
position as shown in Figure 24.  
Use this position for  
3Ø-240 or 1Ø120V.  
Remember the voltage selector switch determines the range  
of the output voltage. The voltage regulator (VR) allows the  
user to increase or decrease the selected voltage.  
Figure 24. Voltage Selector  
Switch 240/139V  
3Ø 240/139 Output Terminal Lug Voltages  
Three-Phase Position  
1. Place the voltage selector switch in the 3Ø 240/139  
position as shown in Figure 21.  
2. Connect the load wires to the OutputTerminal Lugs as  
shown in Figure 25.  
Figure 21. Voltage Selector Switch 240/139V  
Three-Phase Position  
2. Connect the load wires to the OutputTerminal Lugs as  
shown in Figure 22.  
Figure 25. Output Terminal Lugs  
3Ø-208/120V Connections  
3. Turn the voltage regulator knob (Figure 23) clockwise to  
increase voltage output, turn counterclockwise to  
decrease voltage output.  
To achieve a 3Ø 208V output  
the voltage selector switch  
must be in the 3Ø-240/139  
position and the voltage  
regulator must be adjusted to  
208V.  
Figure 22. Output Terminal Lugs  
3Ø-240/139V Connections  
3. Turn the voltage regulator knob (Figure 23) clockwise to  
increase voltage output, turn counterclockwise to  
decrease voltage output.  
NOTE  
Figure 23. Voltage Regulator Knob (139V/240V)  
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DCA-25USIXF/DCA-25USI2XF— OUTPUT TERMINAL PANEL  
CONNECTIONS  
3Ø 480/277 OutputTerminal Lug Voltages  
1Ø 240V/120V Output Terminal Lug Voltages  
1. Place the voltage selector switch in the 3Ø 480/277  
position as shown in Figure 26.  
1. Place the voltage selector switch in the 1Ø 240/120  
position as shown in Figure 28.  
Figure 26. Voltage Selector Switch 480/277V  
Three-Phase Position  
Figure 28. Voltage Selector Switch 240/120V  
Single-Phase Position  
2. Connect the load wires to the OutputTerminal Lugs as  
2. Connect the load wires to the OutputTerminal Lugs as  
shown in Figure 29.  
shown in Figure 27.  
Figure 27. Output Terminal Lugs  
3Ø-480/277V Connections  
Figure 29. Output Terminal Lugs  
1Ø-240/120V Connections  
3. Turn the voltage regulator knob (Figure 23) clockwise to  
increase voltage output, turn counterclockwise to  
decrease voltage output.  
3. Turn the voltage regulator knob (Figure 23) clockwise to  
increase voltage output, turn counterclockwise to  
decrease voltage output.  
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DCA-25USIXF/DCA-25USI2XF— SETUP  
Fuel Check  
Circuit Breakers  
To protect the generator from an overload, a 3-pole, 60 amp,  
main circuit breaker is provided to protect the UVW output  
terminals from overload. In addition two single-pole, 20 amp  
GFCI circuit breakers are provided to protect the GFCI  
receptacles from overload.Two 50 amp load circuit breakers  
have also been provided to protect the auxiliary receptacles  
from overload. Make sure to switch ALL circuit breakers to  
DANGER - EXPLOSION/FIRE HAZARDS  
Fuel spillage on a hot engine can cause a fire or explosion.  
If fuel spillage occurs, wipe up the spilled fuel completely  
to prevent fire hazards. NEVER smoke around or near the  
generator.  
the "OFF" position prior to starting the engine.  
Lubrication Oil  
Fill the engine crankcase with lubricating oil through the filler  
hole, but DO NOT overfill. Make sure the generator is level.  
and verify that the oil level is maintained between the two  
notches (Figure 30) on the dipstick. See Table 11 for proper  
selection of engine oil.  
Refilling the Fuel System  
CAUTION - REFUELINGTHE GENERATOR  
ONLY properly trained personel who have read and  
understand this section should refill the fuel tank system.  
Figure 30. Engine Oil Dipstick  
This generator has an internal fuel tank located inside the  
When checking the engine oil, be sure to check if the oil is trailer frame and may also be equipped with an environmental  
fuel tank (Figure 31). ALWAYS fill the fuel tanks with clean  
fresh #2 diesel fuel. DO NOT fill the fuel tanks beyond their  
capacities.  
clean. If the oil is not clean, drain the oil by removing the oil  
drain plug, and refill with the specified amount of oil as outlined  
in the Isuzu Engine Owner's Manual. Oil should be warm  
before draining.  
Pay attention to the fuel tank capacity when replenishing  
fuel.The fuel tank cap must be closed tightly after filling.  
Handle fuel in a safety container. If the container does not  
have a spout, use a funnel. Wipe up any spilled fuel  
immediately.  
Other types of motor oils may be substituted if they meet  
the following requirements:  
API Service Classification CH-4  
API Service Classification CG-4  
API Service Classification CF-4  
ACEA Specification E3  
ACEA Specification E2  
Table 11. Recommended Motor Oil  
OIL: SAE  
F
C
122  
104  
86  
50  
40  
30  
20  
10  
0
68  
50  
32  
-14  
-4  
-10  
-20  
-30  
-40  
Figure 31. Internal Fuel Tank System  
-22  
-40  
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DCA-25USIXF/DCA-25USI2XF— SETUP  
Refueling Procedure:  
WARNING - RESPIRATORY HAZARDS  
3. Open cabinet doors on the “right side” of the generator  
(from generator control panel position). Remove fuel cap  
and fill tank (Figure 33).  
Diesel fuel and its vapors are dangerous  
to your health and the surrounding  
environment. Avoid skin contact and/or  
inhaling fumes.  
1. Level Tanks – Make sure fuel cells are level with the  
ground. Failure to do so will cause fuel to spill from the  
tank before reaching full capacity (Figure 32).  
CAUTION - REFUELINGTHE GENERATOR  
ALWAYS place trailer on firm level ground before refueling  
to prevent spilling and maximize the amount of fuel that  
can be pumped into the tank.  
Figure 33. Fueling the Generator  
3. NEVER overfill fuel tank – It is important to read the  
fuel gauge when filling trailer fuel tank. DO NOT wait for  
fuel to rise in filler neck (Figure 34).  
Figure 32. Only Fill on Level Ground  
NOTE  
ONLY! use #2 diesel fuel when  
refueling.  
Figure 34. Full Fuel Tank  
CAUTION - REFUELINGTHE GENERATOR  
DO NOT OVER-FILL fuel system. Leave room for fuel  
expansion. Fuel expands when heated (Figure 35).  
Figure 35. Fuel Expansion  
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DCA-25USIXF/DCA-25USI2XF— SETUP  
Coolant (ISUZU Antifreeze/Summer Coolant/Water)  
Cleaning the Radiator  
ISUZU recommends ISUZU Antifreeze/Summer Coolant for  
use in thier engines, which can be purchased in concentrate  
(and mixed with 50% demineralized water) or pre-diluted.  
See the ISUZU Engine Owner's Manual for further details.  
The engine may overheat if the radiator fins become  
overloaded with dust or debris. Periodically clean the radiator  
fins with compressed air. Cleaning inside the machine is  
dangerous, so clean only with the engine turned off and the  
negative battery terminal disconnected.  
Air Cleaner  
WARNING - BURN HAZARDS  
Periodic cleaning/replacement is necessary. Inspect it in  
If adding coolant/antifreeze mix to the  
radiator, DO NOT remove the radiator cap  
until the unit has completely cooled.The  
possibility of hot! coolant exists which  
can cause severe burns.  
accordance with the ISUZU Engine Owner's Manual.  
Fan Belt Tension  
A slack fan belt may contribute to overheating, or to  
insufficient charging of the battery. Inspect the fan belt for  
damage and wear and adjust it in accordance with the ISUZU  
Engine Owner's Manual.  
Day-to-day addition of coolant is done from the recovery  
tank. When adding coolant to the radiator, DO NOT remove  
the radiator cap until the unit has completely cooled. See  
Table 12 for engine, radiator, and recovery tank coolant  
capacities. Make sure the coolant level in the recovery tank  
is always between the "H" and the "L" markings.  
The fan belt tension is proper if the fan belt bends 10 to 15  
mm (Figure 36) when depressed with the thumb as shown  
below.  
Table 12. Coolant Capacity  
Engine and Radiator  
Reserve Tank  
1.70 gal. (6.4 liters)  
0.26 gal. (1 liter)  
Figure 36. Fan Belt Tension  
CAUTION - ROTATING PARTS  
Operation FreezingWeather  
When operating in freezing weather, be certain the proper  
amount of antifreeze (Table 13) has been added.  
NEVER place hands near  
the belts or fan while the  
generator set is running.  
Table 13. Anti-Freeze Operating Temperatures  
Freezing Point  
Boiling Point  
Vol %  
Anti-Freeze  
°C  
-24  
-37  
°F  
°C  
°F  
40  
50  
-12  
-34  
106  
108  
222  
226  
When the antifreeze is mixed with  
water, the antifreeze mixing ratio  
must be less than 50%.  
NOTE  
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DCA-25USIXF/DCA-25USI2XF— SETUP  
Battery  
When connecting battery do the following:  
This unit is of negative ground DO NOT connect in reverse. 1. NEVER connect the battery cables to the battery  
Always maintain battery fluid level between the specified  
marks. Battery life will be shortened, if the fluid level are not  
properly maintained. Add only distilled water when  
replenishment is necessary.  
terminals when the ignition switch is in either the Pre-  
Heat, RUN, or START position. ALWAYS make sure  
that the ignition switch is in the STOP position when  
connecting the battery.  
DO NOT over fill. Check to see whether the battery cables 2. Place a small amount of battery terminal treatment  
are loose. Poor contact may result in poor starting or  
malfunctions. Always keep the terminals firmly tightened.  
Coating the terminals with an approved battery terminal  
treatment compound. Replace battery with only  
recommended type battery.  
compound around both battery terminals.This will ensure  
a good connection and will help prevent corrosion around  
the battery terminals.  
If the battery cable is connected  
The battery is sufficiently charged if the specific gravity of  
the battery fluid is 1.28 (at 68° F). If the specific gravity  
should fall to 1.245 or lower, it indicates that the battery is  
dead and needs to be recharged or replaced.  
incorrectly, electrical damage to the  
NOTE  
generator will occur. Pay close  
attention to the polarity of the  
battery when connecting the  
battery.  
Before charging the battery with an external electric source,  
be sure to disconnect the battery cables.  
Battery Cable Installation  
CAUTION - BATTERY SERVICING SAFETY  
ALWAYS be sure the battery cables (Figure 37) are properly  
connected to the battery terminals as shown below.The Red  
Cable is connected to the positive terminal of the battery,  
and the Black Cable is connected to the negative terminal  
of the battery.  
Inadequate battery connections may cause poor starting  
of the generator, and create other malfunctions.  
Alternator  
The polarity of the alternator is negative grounding type. When  
an inverted circuit connection takes place, the circuit will be  
in short circuit instantaneously resulting the alternator failure.  
CAUTION - BATTERY SERVICING SAFETY  
DO NOT put water directly on the alternator. Entry of water  
into the alternator can cause corrision and damage the  
alternator.  
ALWAYS disconnect the negative terminal FIRST and  
reconnect negative terminal LAST.  
Wiring  
Inspect the entire generator for bad or worn electrical wiring  
or connections. If any wiring or connections are exposed  
(insulation missing) replace wiring immediately.  
Piping and Hose Connection  
Inspect all piping, oil hose, and fuel hose connections for  
wear and tightness.Tighten all hose clamps and check hoses  
for leaks.  
If any hose (fuel or oil) lines are defective replace them  
immediately.  
Figure 37. Battery Connections  
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DCA-25USIXF/DCA-25USI2XF— GENERATOR START-UP PROCEDURE  
Before Starting  
Start-up Procedure  
1. Place the voltage selector switch in the desired voltage  
CAUTION - LETHAL EXHAUST HAZARD  
position (Figure 40).  
The engine's exhaust contains harmful emissions.  
ALWAYS have adequate ventilation when operating.  
Direct exhaust away from nearby personnel.  
WARNING - STARTINGTHE GENERATOR  
NEVER! manually start the engine with the main, GFCI  
or auxiliary circuit breakers in the ON (closed) position.  
1. Place the main, G.F.C.I., and aux. circuit breakers  
(Figure 38) in the OFF position prior to starting the engine.  
Figure 40.Voltage  
Selector Switch  
2. In warm weather conditions, skip to step 3. Preheat the  
engine glow plugs by turning the ignition key  
(Figure 41) to the RUN position.When the preheat lamp  
(Figure 42) illuminates, proceed to step 3.  
Figure 38. Main, Aux. and GFCI  
Circuit Breakers (OFF)  
2. Connect the load to the receptacles or the Output  
Terminal Lugs as shown in (Figure 11). These load  
connection points can be found on the output terminal  
panel and the output terminal panel’s hard wire hookup  
panel.  
Figure 41. Ignition Switch Pre-Heat  
(Run Position)  
3. The output terminal lugs are protected by a plastic cover.  
Remove this cover to gain access to the terminals.  
Tighten terminal nuts securely to prevent load wires from  
slipping out.  
Figure 42. Pre-Heat Indicator Lamp  
4. Close all engine enclosure doors (Figure 39).  
CORRECT  
INCORRECT  
Figure 39. Engine Enclosure Doors  
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DCA-25USIXF/DCA-25USI2XF— GENERATOR START-UP PROCEDURE  
3. Turn the ignition key to the START position (Figure 43). 6. The generator's AC-voltmeter (Figure 45) displays the  
Once the engine starts, release the ignition key and  
allow it to return to the RUN position (Figure 41).  
output voltage in VOLTS. If the voltage is not within the  
specified frequency tolerance, use the voltage adjustment  
control knob (Figure 46) to increase or decrease the  
desired voltage.  
If the engine fails to start after 10 seconds, wait  
approximately 30 seconds and repeat steps 2-3.  
Figure 43. Ignition Switch (Start Position)  
Figure 45. ACVoltmeter  
4. Let the engine idle for 3-5 minutes, listen and check for  
any abnormal sounds or smells. Check for fuel leaks,  
and noises that would associate with a loose cover or  
hardware.  
Check the electric motor fan cooling the radiator for  
abnormal speed, sound or vibration conditions.  
Figure 46. Voltage Adjust Control Knob  
If any of the above mentioned conditions exists, shut-  
down the engine and correct the problem before operating  
the generator.  
7. The ammeter (Figure 47) will indicate zero amps with no  
load applied. When a load is applied, this meter will  
indicate the amount of current that the load is drawing  
from the generator.  
5. The generator's frequency meter (Figure 44) displays  
the 60 cycle output frequency in HERTZ.  
Figure 44. Frequency Meter (Hz)  
Figure 47. Ammeter (No Load)  
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DCA-25USIXF/DCA-25USI2XF— GENERATOR START-UP PROCEDURE  
8. The engine oil pressure gauge (Figure 48) will indicate  
the oil pressure of the engine. Under normal operating  
conditions the oil pressure is approximately 28~71 psi  
(193~490 kPa).  
11. Turn the main, GFCI, and aux. circuit breakers to the  
ON position (Figure 51).  
Figure 48. Oil Pressure Gauge  
Figure 51. Main, AUX. and GFCI  
Circuit Breakers (ON)  
9. The coolant temperature gauge (Figure 49) will indicate the  
coolant temperature. Under normal operating conditions the  
coolant temperature is between 165°~203° F. (74°~95° C). 12. Observe the generator's ammeter (Figure 52) and verify  
it reads the anticipated amount of current with respect  
to the load. The ammeter will only display a current  
reading if the load is in use.  
Figure 49. CoolantTemperature Gauge  
10. The tachometer (Figure 50) will indicate the speed of  
the engine when the generator is operating. Under normal  
operating conditions this speed is approximately 1800  
RPM’s.  
Figure 52. Ammeter (Load)  
13. The generator will run until manually stopped or an  
abnormal condition occurs.  
Figure 50. Engine Tachometer  
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DCA-25USIXF/DCA-25USI2XF— GENERATOR SHUT-DOWN PROCEDURE  
Normal Shut-down Procedure  
Emergency Shut-down Procedure  
To shutdown the generator, use the following procedure:  
1. To shut-down the engine in the event of an emergency,  
switch the MAIN, GFCI and LOAD (Figure 53) circuit  
breakers to OFF position.  
1. Switch the MAIN, AUX and GFCI circuit breakers  
(Figure 53) to the OFF position (no load).  
2. Turn the ignition switch key to the STOP position  
(Figure 54).  
Automatic Shut-down System  
This unit is equipped with safety devices to automatically  
stop the engine in the event of low oil pressure, approximately  
14 psi (97 kPa), or high water temperature, approximately  
230° F (110° C). The alarm lamps on the Engine Control  
Panel illuminate to signify the reason for the shutdown.  
Figure 53. Main, AUX. and GFCI  
Circuit Breakers (OFF)  
CAUTION - AUTOMATIC SHUT-DOWN  
After automatic shut-down, ALWAYS inspect the unit and  
eliminate any problems before attempting to restart.  
Failure to do so can damage the unit.  
3. Let the engine cool by running it for 3-5 minutes with no  
load applied (circuit breakers in the OFF position).  
4. Place the ignition switch (Figure 54) in the “STOPposition,  
remove the key and store in a safe place.  
Before inspecting, turn the starter switch to the STOP  
position, place all Generator Circuit Breakers in the OFF  
position and allow sufficient time for adequate cooling. When  
ready to restart, complete all steps in the Generator Startup  
Procedure section of this manual.  
Engine protection is furnished  
during operation, but cannot  
replace normal preventive  
maintenance.  
NOTE  
Figure 54. Ignition Switch (Off Position)  
5. Remove all loads from the generator.  
6. Allow for sufficient time for cooling and then inspect the  
complete unit for any damage or loosening that may  
have occured during operation.  
Regularly maintain the unit as specified in the Maintenance  
section of this manual to prevent damage.  
7. Check the engine oil, coolant and fuel levels. Replenish  
as necessary.  
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DCA-25USIXF/DCA-25USI2XF— MAINTENANCE  
10 Hrs  
DAILY  
250 Hrs  
500 Hrs  
1000 Hrs  
TABLE 14. INSPECTION/MAINTENANCE  
Check Engine Fluid Levels  
Check Air Cleaner  
X
X
X
X
X
X
Check Battery Acid Level  
Check Fan Belt Condition  
Check for Leaks  
Check for Loosening of Parts  
1
Replace Engine Oil and Filter *  
X
X
X
X
X
X
Drain Bottom of Fuel Tank  
Check Fuel Filter/Water Seperator Bowl  
Clean Unit, Inside and Outside  
ENGINE  
2
Check Blowby Hose *  
Clean Air Filter  
3
Replace Air Filter Element *  
X
X
X
Change Fuel Filter  
Clean Radiator and Check Coolant Protection Level  
Check all Hoses and Clamps  
X
X
Clean Inside of Fuel Tank  
Measure Insulation Resistance  
X
GENERATOR  
Check Rotor Rear Support Bearing  
*1 Replace engine oil anf filter at 100 hours, first time only.  
X
*2 If blowby hose needs to be replaced, ensure that the slope of the blowby hose is at least a 1/2 inch per foot, with  
no sags or dips that could collect moisture and/or oil.  
*3 Replace primary air filter element when restriction indicator shows a vaccumm of 625 mm. (25 in.) H2  
0
Service Daily  
General Inspection  
If the engine is operating in very dusty or dry grass conditions, a  
clogged air cleaner will result.This can lead to a loss of power,  
excessive carbon buildup in the combustion chamber and high  
fuel consumption. Change air cleaner more frequently if these  
conditions exists.  
Prior to each use, the generator should be cleaned and inspected  
for deficiencies. Check for loose, missing or damaged nuts, bolts  
or other fasteners. Also check for fuel, oil, and coolant leaks. Use  
Table 14 as a general maintenance guideline. Engine Side,  
refer to the Engine Instruction Manual  
Air Cleaner  
Fuel Addition  
Every 50 hours: Remove air cleaner element and clean the heavy  
duty paper element with kerosene, or foam element with liquid  
detergent and hot water. Wrap foam element in a cloth and  
squeeze dry. For heavy duty paper element, wipe excess  
kerosene with towel.  
Add diesel fuel (the grade may vary according to season and  
locations).Always pour through the mesh filter.  
Removing Water from the Fuel Tank  
After prolonged use, water and other impurities accumulate in  
the bottom of the tank. Occasionally remove the drain cock and  
drain the contents.During cold weather, the more empty volume  
inside the tank, the easier it is for water to condense. This can be  
reduced by keeping the tank full with diesel fuel.  
Air Cleaner with Dust Indicator  
This indicator is attached to the air cleaner.When the air cleaner  
element is clogged, air intake restriction becomes greater and  
the dust indicator signal shows “RED” meaning the element  
needs changing. After changing the air element, press the dust  
indicator button to reset the indicator.  
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DCA-25USIXF/DCA-25USI2XF— MAINTENANCE  
Air Removal  
Flushing Out Radiator and Replacing Coolant  
If air enters the fuel injection system of a diesel engine,  
starting becomes impossible. After running out of fuel, or  
after disassembling the fuel system, bleed the system  
according to the following procedure.  
Open both cocks located at the crankcase side and at  
the lower part of the radiator and drain coolant.Open the  
radiator cap while draining. Remove the overflow tank  
and drain.  
To restart after running out of fuel, turn the switch to the ON  
position for 15-30 seconds. Try again, if needed.This unit is  
equipped with an automatic air bleeding system.  
Check hoses for softening and kinks. Check clamps for  
signs of leakage.  
Flush the radiator by running clean tap water through  
radiator until signs of rust and dirt are removed.DO NOT  
clean radiator core with any objects, such as a  
screwdriver.  
Cleaning the Fuel Strainer  
Clean the fuel strainer if it contains dust or water. Remove  
dust or water in the strainer cap and wash it in gasoline.  
Securely fasten the fuel strainer cap so that fuel will not  
leak. Check the fuel strainer every 200 hours of operation or  
once a month.  
Tighten both cocks and replace the overflow tank.  
Replace with coolant (Table 12 for correct mixture).  
Close radiator cap tightly.  
Check Oil Level  
Check the crankcase oil level prior to each use, or when the  
fuel tank is filled. Insufficient oil may cause severe damage  
to the engine. Make sure the generator is level.The oil level  
must be between the two notches on the dipstick as shown  
in Figure 30.  
WARNING - BURN HAZARDS  
Allow engine to cool when flushing out  
radiator. Flushing the radiator while hot  
could cause serious burns from water or  
steam.  
Replacing Oil Filter  
Detach the oil filter by loosening center bolt and remove  
the element together with the filter body.  
Generator Storage  
Apply a film of oil to the gasket for the cartridge.  
For longe term storage of the generator the following is  
recommended:  
Install the filter body together with the element and fix  
them by tightening the center bolt.  
Fill the fuel tank completely. Treat with a fuel stabilizer  
if necessary.  
After the oil cartridge has been replaced, the engine oil  
will drop slightly. Run the engine for a while and check  
for leaks before adding more oil if needed. Clean  
excessive oil from engine.  
Completely drain the oil from the crankcase and refill if  
necessary with fresh oil.  
Clean the entire generator, internal and external.  
Cover the generating set and store in a clean, dry place.  
Disconnect the battery.  
Replacing Fuel Filter  
Replace the fuel filter cartridge with new one every 400  
hours or so.  
Loosen the drain plug at the lower top of the fuel filter.  
Drain the fuel in the fuel body together with the mixed  
water. DO NOT spill the fuel during disassembly.  
Make sure engine coolant is at proper level.  
If generator is mounted on a trailer, jack trailer up and  
place on block so tires do touch the ground or remove  
tires.  
Vent any air.  
Feed Pump Strainer Cleaning  
The strainer is incorporated in the feed pump inlet side joint  
bolt. Clean the strainer with compressed air and rinse it in  
the fuel oil.  
1
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DCA-25USIXF/DCA-25USI2XFTRAILER MAINTENANCE  
Brakes  
Hydraulic Surge Brakes  
Trailer brakes should be inspected the first 200 miles of Hydraulic surge brakes (Figure 53) should not require any  
operation. This will allow the brake shoes and drums to seat special attention with the exception of routine maintenance  
properly. After the first 200 mile interval, inspect the brakes such as shoe and lining replacement. Brake lines should be  
every 3,000 miles. If driving over rough terrain, inspect the periodically checked for cracks, kinks, or blockage.  
brakes more frequently.  
Figure 55 displays the major hydraulic surge brake  
components that will require inspection and maintenance.  
Please inspect these components as required using steps 1  
through 8 and Table 15 as listed below:  
Brake Adjustment  
1. Place the trailer on jack stands. Make sure the jack  
stands are placed on secure level ground.  
2. Check the wheel and drum for free rotation.  
3. Remove the adjusting hole cover from the adjusting slot  
at the bottom brake backing plate.  
4. With a screwdriver or standard adjusting tool, rotate the  
Figure 55. Hydraulic Brake Components  
star wheel of the adjuster assembly to expand the brake  
shoes.  
Actuator  
5. Adjust the brake shoes outward until the pressure of the  
lining against the wheel drum makes the wheel difficult  
to turn.  
Hydraulic surge braking requires the installation of an actuator  
at the tongue of the trailer. Remember the surge or push of  
the trailer toward the tow vehicle automatically synchronizes  
the trailer brakes with the tow vehicle brakes. As the trailer  
pushes against the tow vehicle the actuator telescopes  
together and applies force to the master cylinder, supplying  
hydraulic pressure to the trailer brakes.  
6. Adjust, rotate the star wheel in the opposite direction  
until the wheel rotates freely with slight lining drag.  
7. Replace the adjusting hole cover and lower the trailer to  
the ground.  
Periodically check and test the surge “actuator” to make  
sure that it is functioning correctly. Never use an undersize  
actuator.  
8. Repeat steps 1 through 7 on the remaining brakes.  
Table 15. Hydraulic Brake Troubleshooting  
Symptom  
Possible Cause  
Solution  
Repair or replace.  
Reburnish or replace.  
Correct weight.  
No Brakes  
Brake line broken or kinked?  
Brake lining glazed?  
Trailer overloaded?  
Weak Brakes or Brakes Pull to  
One Side  
Brake drums scored or grooved?  
Tire pressure correct?  
Machine or replace.  
Inflate all tires equally.  
Match tires.  
Tires unmatched on the same axle?  
Brake components loose, bent or broken?  
Brake drums out-of-round?  
System lubricated?  
Replace components.  
Replace.  
Locking Brakes  
Noisy Brakes  
Lubricate.  
Brake components correct?  
Replace and correct.  
Brake lining thickness incorrect or not  
adjusted correctly?  
Install new shoes and  
linings.  
Dragging Brakes  
Replace rubber parts  
fill with dot 4 fluid.  
Enough brake fluid or correct fluid?  
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DCA-25USIXF/DCA-25USI2XFTRAILER MAINTENANCE  
Tires/Wheels/Lug Nuts  
Suspension  
Tires and wheels are a very important and critical The leaf suspension springs and associated components  
components of the trailer. When specifying or replacing the (Figure 56) should be visually inspected every 6,000 miles  
trailer wheels it is important the wheels, tires, and axle are for signs of excessive wear, elongation of bolt holes, and  
properly matched.  
loosening of fasteners. Replace all damaged parts  
(suspension) immediately. Torqued suspension components  
as detailed in Table 17.  
CAUTION - EYESIGHT HAZARD  
ALWAYS wear safety glasses when  
removing or installing force fitted parts.  
Failure to comply may result in serious  
injury.  
CAUTION - REPAIRINGTRAILERWHEELS  
DO NOT attempt to repair or modify a wheel. DO NOT  
install in inner tube to correct a leak through the rim. If the  
rim is cracked, the air pressure in the inner  
tube may cause pieces of the rim to  
explode (break off) with great force and  
cause serious eye or bodily injury.  
Figure 56. Major Suspension Components  
Table 17. Suspension Torque Requirements  
TireWear/Inflation  
Tire inflation pressure is the most important factor in tire life.  
Pressure should be checked cold before operation DO NOT  
bleed air from tires when they are hot!. Check inflation  
pressure weekly during use to insure the maximum tire life  
and tread wear.  
Item  
Torque (Ft.-Lbs.)  
MIN-30 MAX-35  
MIN-45 MAX-60  
MIN-45 MAX-60  
3/8" U-BOLT  
7/16" U-BOLT  
1/2" U-BOLT  
Table 16 (Tire Wear Troubleshooting) will help pinpoint the  
causes and solutions of tire wear problems.  
SNUG FIT ONLY. PARTS MUST ROTATE FREELY.  
LOCKING NUTS OR COTTER PINS ARE PROVIDED  
TO RETAIN NUT-BOLT ASSEMBLY.  
SHACKLE BOLT  
SPRING EYE BOLT  
SHOULDER TYPE  
SHACKLE BOLT  
MIN-30 MAX-50  
1
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DCA-25USIXF/DCA-25USI2XFTRAILER MAINTENANCE  
Lug NutTorque Requirements  
It is extremely important to apply and maintain proper wheel  
mounting torque on the trailer. Be sure to use only the  
fasteners matched to the cone angle of the wheel. Proper  
procedure for attachment of the wheels is as follows:  
1. Start all wheel lug nuts by hand.  
2. Torque all lug nuts in sequence (see Figure 57). DO NOT  
torque the wheel lug nuts all the way down.Tighten each  
lug nut in 3 separate passes as defined by Table 18.  
3. After first road use, retorque all lug nuts in sequence.  
Check all wheel lug nuts periodically.  
Table 18. Tire Torque Requirements  
Wheel Size  
First Pass  
FT-LBS  
Second Pass  
FT-LBS  
Third Pass  
FT-LBS  
12"  
13"  
14"  
15"  
16"  
20-25  
20-25  
20-25  
20-25  
20-25  
35-40  
35-40  
50-60  
50-60  
50-60  
50-65  
50-65  
90-120  
90-120  
90-120  
Figure 57. Wheel Lug Nuts  
Tightening Sequence  
NEVER use an pneumatic air  
gun to tighten wheel lug nuts.  
NOTE  
PAGE 42 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF/DCA-25USI2XFTRAILERWIRING DIAGRAM  
Figure 58. Trailer/Towing Vehicle Wiring Diagram  
1
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DCA-25USIXF/DCA-25USI2XF— ENGINEWIRING DIAGRAM  
Figure 59A. Engine Wiring Diagram  
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DCA-25USIXF/DCA-25USI2XF— ENGINEWIRING DIAGRAM  
Figure 59B. Engine Wiring Diagram(Continued)  
1
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DCA-25USIXF/DCA-25USI2XF— GENERATORWIRING DIAGRAM  
Figure 60. Generator Wiring Diagram  
PAGE 46 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF/DCA-25USI2XFTROUBLESHOOTING (ENGINE)  
Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a  
breakdown, useTable 19 shown below for diagnosis of the engine.If the problem cannot be remedied, consult our company's  
business office or service plant.  
TABLE 19. ENGINE TROUBLESHOOTING  
SYMPTOM  
POSSIBLE PROBLEM  
No fuel?  
SOLUTION  
Replenish fuel.  
Bleed system.  
Air in the fuel system?  
Water in the fuel system?  
Fuel pipe clogged?  
Remove water from fuel tank.  
Clean fuel pipe.  
Fuel filter clogged?  
Clean or change fuel filter.  
Excessively high viscosity of  
fuel or engine oil at low  
temperature?  
Use the specified fuel or engine oil.  
Use the specified fuel.  
Tighten nut.  
Fuel with low cetane number?  
Fuel leak due to loose injection  
pipe retaining nut?  
Incorrect injection timing?  
Fuel cam shaft worn?  
Adjust.  
Engine does not start.  
Replace.  
Injection nozzle clogged?  
Injection pump malfunctioning?  
Clean injection nozzle.  
Repair or replace.  
Seizure of crankshaft, camshaft,  
piston, cylinder liner or bearing?  
Repair or replace.  
Compression leak from  
cylinder?  
Replace head gasket, tighten cylinder head bolt, glow plug and  
nozzle holder.  
Improper valve timing?  
Piston ring and liner worn?  
Excessive valve clearance?  
Starter malfunctioning?  
Wiring disconnected?  
Correct or replace timing gear.  
Replace.  
Adjust.  
Repair or replace.  
Connect wiring.  
Starter does not run.  
1
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DCA-25USIXF/DCA-25USI2XFTROUBLESHOOTING (ENGINE)  
TABLE 19. ENGINE TROUBLESHOOTING (CONTINUED)  
SYMPTOM  
POSSIBLE PROBLEM  
Fuel filter clogged or dirty?  
Air cleaner clogged?  
SOLUTION  
Clean or change.  
Clean or change.  
Fuel leak due to loose injection  
pipe retaining nut?  
Tighten nut.  
Repair or replace.  
Adjust.  
Injection pump malfunctioning?  
Engine revolution is not smooth.  
Incorrect nozzle opening  
pressure?  
Injection nozzle stuck or  
clogged?  
Repair or replace.  
Fuel over flow pipe clogged?  
Governor malfunctioning?  
Excessive engine oil?  
Clean.  
Repair.  
Reduce to the specified level.  
Repair or replace.  
Piston ring and liner worn or  
stuck?  
Either white or blue exhaust gas  
is observed.  
Incorrect injection timing?  
Deficient compression?  
Overload?  
Adjust.  
Adjust top clearance.  
Lessen the load.  
Use the specified fuel.  
Clean or change.  
Clean or change.  
Repair or replace the nozzle.  
Adjust.  
Low grade fuel used?  
Fuel filter clogged?  
Either black or dark gray  
exhaust gas is observed.  
Air cleaner clogged?  
Deficient nozzle injection?  
Incorrect injection timing?  
Engine's moving parts seem to  
be seizing?  
Repair or replace.  
Deficient output.  
Uneven fuel injection?  
Repair or replace the injection pump.  
Repair or replace the nozzle.  
Deficient nozzle injection?  
Replace head gasket, tighten cylinder head bolt, glow plug and  
nozzle holder.  
Compression leak?  
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DCA-25USIXF/DCA-25USI2XFTROUBLESHOOTING (GENERATOR)  
Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a  
breakdown, use Table 20 shown below for diagnosis of the Generator. If the problem cannot be remedied, consult our  
company's business office or service plant.  
TABLE 20. GENERATOR TROUBLESHOOTING  
SYMPTOM  
No Voltage Output  
POSSIBLE PROBLEM  
AC Voltmeter defective?  
SOLUTION  
Check output voltage using a voltmeter.  
Check wiring and repair.  
Is wiring connection loose?  
Is AVR defective?  
Replace if necessary.  
Defective Rotating Rectifier?  
Defective Exciter Field?  
Is engine speed correct?  
Is wiring connections loose?  
Defective AVR?  
Check and replace.  
Check for 17.3 ohms across J & K on CN1  
Turn engine throttle lever to "High".  
Check wiring and repair.  
Low Voltage Output  
Replace if necessary.  
High Voltage Output  
Is wiring connections loose?  
Defective AVR?  
Check wiring and repair.  
Replace if necessary.  
Circuit Breaker Tripped  
Short Circuit in load?  
Over current?  
Check load and repair.  
Confirm load requirements and reduce.  
Check and replace.  
Defective circuit breaker?  
Over current Relay actuated?  
Confirm load requirement and replace.  
1
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DCA-25USIXF/DCA-25USI2XF— EXPLANATION OF CODE IN REMARKS  
COLUMN  
QTY. Column  
The following section explains the different symbols and  
remarks used in the Parts section of this manual. Use the help  
numbers found on the back page of the manual if there are any  
questions.  
Numbers Used - Item quantity can be indicated by a  
number, a blank entry, or A/R.  
A/R (As Required) is generally used for hoses or other parts  
that are sold in bulk and cut to length.  
The contents and part numbers listed in the parts section are  
subject to change without notice. Multiquip does not  
guarantee the availibility of the parts listed.  
A blank entry generally indicates that the item is not sold  
separately. Other entries will be clarified in the “Remarks”  
Column.  
REMARKS Column  
Sample Parts List:  
Some of the most common notes found in the “Remarks”  
Column are listed below.Other additional notes needed to  
describe the item can also be shown.  
NO. PART NO. PART NAME  
QTY. REMARKS  
1
2
2
3
4
12345  
BOLT ...................... 1 ......INCLUDES ITEMS W/  
WASHER, 1/4 IN. .............NOT SOLD SEPARATELY  
WASHER, 3/8 IN. ... 1 ......MQ-45T ONLY  
HOSE ................... A/R ....MAKE LOCALLY  
BEARING ............... 1 ......S/N2345B AND ABOVE  
*
*
*
12347  
12348  
12349  
Assembly/Kit - All items on the parts list with the same  
unique symbol will be included when this item is purchased.  
Indicated by:  
“INCLUDES ITEMS W/(unique symbol)”  
NO. Column  
Unique Symbols - All items with same unique symbol  
Serial Number Break - Used to list an effective serial  
number range where a particular part is used.  
( , #,  
+
, %, or >) in the number column belong to the same  
*
assembly or kit, which is indicated by a note in the “Remarks”  
column.  
Indicated by:  
“S/N XXXXX AND BELOW”  
“S/N XXXX AND ABOVE”  
“S/N XXXXTO S/N XXX”  
Duplicate Item Numbers - Duplicate numbers indicate  
multiple part numbers are in effect for the same general  
item, such as different size saw blade guards in use or a  
part that has been updated on newer versions of the same  
machine.  
Specific Model Number Use - Indicates that the part is  
used only with the specific model number or model number  
variant listed. It can also be used to show a part is NOT  
used on a specific model or model number variant.  
When ordering a part that has more than one  
item number listed, check the remarks column  
for help in determining the proper part to order.  
Indicated by:  
“XXXXX ONLY”  
“NOT USED ON XXXX”  
“Make/Obtain Locally” - Indicates that the part can be  
purchased at any hardware shop or made out of available  
items. Examples include battery cables, shims, and certain  
washers and nuts.  
PART NO. Column  
Numbers Used - Part numbers can be indicated by a  
number, a blank entry, orTBD.  
“Not Sold Separately” - Indicates that an item cannot be  
purchased as a separate item and is either part of an  
assembly/kit that can be purchased, or is not available for  
sale through Multiquip.  
TBD (To Be Determined) is generally used to show a part  
that has not been assigned a formal part number at time of  
publication.  
A blank entry generally indicates that the item is not sold  
separately or is not sold by Multiquip. Other entries will be  
clarified in the “Remarks” Column.  
PAGE 50 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF/DCA-25USI2XF— SUGGESTED SPARE PARTS  
DCA-25USIXF/DCA-25USI2XF (BigTank)  
W/ISUZU AA-4LE2/BV-4LE2 DIESEL ENGINES  
1TO 3 UNITS  
Qty.  
P/N  
Description  
Remarks  
3 ......... 8944567411 ..............OIL FILTER, DCA-25USI  
3 ......... 8944567412 ..............ELEMENT OIL FILTER, DCA-25USI2  
3 ......... 0602046611 ..............AIR ELEMENT  
3 ......... 8943692993 ..............CARTRIDGE, FUEL FILTER  
1 ......... 0602122272 ..............UNIT, OIL PRESSURE  
1 ......... 0602123266 ..............UNIT WATERTEMPERATURE, DCA-25USI  
1 ......... 0602123275 ..............UNIT WATERTEMPERATURE, DCA-25USI2  
1 ......... 0605505072 ..............FUEL CAP  
1 ......... 8972309390 ..............FAN BELT  
1 ......... M1312500203 ...........HOSE, RADIATOR UPPER  
1 ......... M1312500303 ...........HOSE, RADIATOR LOWER  
1 ......... 0601808803 ..............CIRCUIT BREAKER, 20A  
1 ......... 0601808804 ..............CIRCUIT BREAKER, 50A  
1 ......... 0602103092 ..............ALARM LAMP  
1 ......... 0601810245 ..............BULB, ALARM LAMP/PRE-HEAT LAMP  
1 ......... 8944024980 ..............KEY, IGNITION SWITCH  
1 ......... 0601840073 ..............RHEOSTAT,VOLTAGE REGULATOR  
1 ......... 0601840121 ..............KNOB RHEOSTAT  
1 ......... 0601820671 ..............AUTOMATICVOLTAGE REGULATOR, DCA25USI  
1 ......... 0601820602 ..............AUTOMATICVOLTAGE REGULATOR, DCA25USI2  
2 ......... 0601802160 ..............FUSE, 5A, DCA-25USI  
3 ......... 8944370220 ..............FUEL FILTER KIT  
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 51  
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DCA-25USIXF/DCA-25USI2XF— GENERATOR ASSY.  
GENERATOR ASSY.  
PAGE 52 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF/DCA-25USI2XF— GENERATOR ASSY.  
GENERATOR ASSY.  
NO.  
1
PART NO.  
PART NAME  
QTY.  
REMARKS  
B1110200602  
ROTOR ASSY. ............................................... 1............. INCLUDES ITEMS W/  
*
1-1  
FIELD ASSY.  
RECTIFIER  
SURGE ABSORBER  
FAN  
COUPLING DISK  
WASHER, COUPLING HUB  
1
1
1
1
2
1
*
1-2  
1-3  
1-4  
1-5  
1-6  
1-7  
1-8  
1-9  
7961025004  
0601822630  
8001070003  
8351611004  
8351612004  
B1112300003  
0010310025  
0042510000  
0601000209  
0071906308  
0010308035  
0040008000  
0041208000  
0070506803  
B1130201103  
0845041904  
B1138000003  
0016008045  
0042508000  
8351315003  
0017108035  
8351312004  
8351331004  
0017106016  
0010310030  
0040010000  
0041210000  
B0155400204  
0010106030  
0041206000  
0600815000  
M9312600004  
0207010000  
*
*
*
*
*
*
*
*
BALANCING PLATE ......................................1............. PURCHASE ITEMS 1-10 AS A SET  
HEX. HEAD BOLT  
WASHER, LOCK  
BALANCING WEIGHT KIT  
BEARING  
HEX, HEAD BOLT  
WASHER, LOCK  
WASHER, FLAT  
BEARING  
4
4
1
1
6
6
6
1
1
1
1
2
3
1
6
1
1
3
6
6
6
1
1
1
1
2
2
1-10  
1-11  
2
*
*
2A  
2B  
3
4
4-1  
5
6
7
8
9
10  
11  
12  
13  
13A  
13B  
14  
15  
16  
17  
18  
19  
STATOR ASSY.  
GROMMET  
FIELD ASSY. EXCITER  
HEX, SOCKET HEAD CAP SCREW  
WASHER, LOCK  
END BRACKET  
HEX, HEAD BOLT  
PACKING  
COVER, SUCTION  
HEX, HEAD BOLT  
HEX, HEAD BOLT  
WASHER, LOCK  
WASHER, FLAT  
COVER, FAN  
HEX, HEAD BOLT  
WASHER, FLAT  
NUT  
RUBBER SUSPENSION  
HEX, NUT  
1
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DCA-25USIXF— CONTROL BOX ASSY.  
CONTROL BOX ASSY. (DCAUSIXF ONLY)  
PAGE 54 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF— CONTROL BOX ASSY.  
CONTROL BOX ASSY. (DCAUSIXF ONLY)  
NO.  
1
2
3
4
PART NO.  
PART NAME  
QTY.  
1
1
4
2
1
1
1
1
2
1
1
4
2
4
1
4
REMARKS  
M1215000612  
0601808820  
0021005080  
0601823240  
0021004040  
0040004000  
0041204000  
0601842384  
0027104010  
0601815759  
M9521000004  
0027104020  
0601823863  
0027104016  
0601820671  
0027105016  
0601806115  
0027106016  
0601820845  
0601820847  
0601820846  
0601820848  
0027104016  
0207004000  
M1213500203  
0016906016  
CONTROL BOX  
CIRCUIT BREAKER, 3P 60A  
MACHINE SCREW  
RECTIFIER  
MACHINE SCREW  
WASHER, LOCK  
5
5A  
5B  
6
7
8
8A  
9
10  
11  
12  
13  
14  
15  
16  
16  
17  
17  
18  
18A  
19  
20  
21  
WASHER, FLAT  
RESISTOR, 20W 50 OHM  
MACHINE SCREW  
TERMINAL BOARD  
DECAL; TERMINAL SYMBOL  
MACHINE SCREW  
RELAY UNIT  
MACHINE SCREW  
AUTOMATICVOLTAGE REGULATOR  
MACHINE SCREW  
CURRENTTRANSFORMER, 50/5A  
MACHINE SCREW  
OVER CURRENT RELAY ....................................1 ............. S/N 8100001~8100586  
OVER CURRENT RELAY ....................................1 ............. S/N 8100587 AND ABOVE  
OVER CURRENT RELAY ....................................1 ............. S/N 8100001~8100586  
OVER CURRENT RELAY ....................................1 ............. S/N 8100587 AND ABOVE  
MACHINE SCREW  
HEX, NUT  
3
6
2
2
1
4
CONTROL BOX COVER  
HEX, HEAD BOLT  
SELECTOR SWITCH ..........................................1 ............. S/N 8100001~8101735  
............................................................................................ ORDER ITEMS W/#  
SELECTOR SWITCH ..........................................1 ............. S/N 8101736 AND ABOVE  
DECAL; SELECTOR SWITCH NUMBER ............................ S/N 8100001~8101735  
DECAL; SELECTOR SWITCH NUMBER ............................ S/N 8101736 AND ABOVE  
SWITCH BRACKET ............................................1 ............. S/N 8100001~8101735  
SWITCH BRACKET ............................................1 ............. S/N 8101736 AND ABOVE  
MACHINE SCREW..............................................4 ............. S/N 8100001~8101735  
MACHINE SCREW..............................................4 ............. S/N 8101736 AND ABOVE  
HEX, NUT............................................................4 ............. S/N 8101736 AND ABOVE  
21#  
21A  
M1270100104  
M1550002504  
21A# M1550002604  
22  
22#  
23  
23#  
M1215601204  
M1215600204  
0027103010  
0027104030  
23A# 0207004000  
24  
25  
25#  
26  
26#  
0016906016  
0330000160  
0330000150  
M1215601104  
M1213600404  
HEX, HEAD BOLT  
4
EDGING ..............................................................1 ............. S/N 8100001~8101735  
EDGING ..............................................................1 ............. S/N 8101736 AND ABOVE  
SWITCH COVER .................................................1 ............. S/N 8100001~8101735  
SWITCH COVER .................................................1 ............. S/N 8101736 AND ABOVE  
RUBBER SEAL ...................................................1 ............. S/N 8101736 AND ABOVE  
RUBBER SEAL ...................................................1 ............. S/N 8101736 AND ABOVE  
RUBBER SEAL ...................................................1 ............. S/N 8101736 AND ABOVE  
HEX, HEAD BOLT ...............................................3 ............. S/N 8100001~8101735  
26-1# 0228800060  
26-2# 0228800108  
26-3# 0317700180  
27  
27#  
0016906016  
0016906016  
HEX, HEAD BOLT ...............................................6 ............. S/N 81017316 ~AND ABOVE  
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 55  
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DCA-25USIXF— CONTROL BOX ASSY. (CONTINUED)  
CONTROL BOX ASSY. (DCAUSIXF ONLY)  
PAGE 56 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF— CONTROL BOX ASSY. (CONTINUED)  
CONTROL BOX ASSY. (DCAUSIXF ONLY)  
NO.  
28  
28A  
29  
29  
30  
31  
32  
33  
34  
35  
36  
37  
37A  
38  
38A  
39  
40  
41  
42  
43  
44  
44A  
45  
46  
47  
48  
49  
50  
51  
52  
53  
53A  
54  
55  
56  
57  
57A  
58  
PART NO.  
PART NAME  
HEX, HEAD BOLT  
TOOTHEDWASHER  
QTY.  
9
1
REMARKS  
0016906016  
0040506000  
M1225000323  
M1225000333  
0601808985  
0601808985  
0601801040  
0601806859  
0601801041  
0601840073  
0601840121  
8970444180  
8944024980  
0602103092  
0601810245  
0602120095  
0602122093  
0602123090  
0602121080  
0602125090  
0602103092  
0601810245  
9826800370  
0601831330  
M1225100004  
0027105010  
0027105010  
M9220100004  
0080200007  
8973259120  
0016906016  
0207006000  
5825500290  
8942481610  
0027105016  
0602103092  
0601810245  
M1213600305  
0027104016  
0207004000  
M1248700004  
M1248700024  
M1359200602  
M1359200612  
0601802160  
CONTROL PANEL ...............................................1 ............. S/N 8100001~8100586  
CONTROL PANEL ...............................................1 ............. S/N 8100587 AND ABOVE  
FREQUENCY METER, 45~65Hz 240V  
AC AMMETER, 0~50A/100A:5A  
CHANGE-OVER SWITCH, AMMETER  
AC VOLTMETER, 0~600V  
CHANGE-OVER SWITCH, AMMETER  
RHEOSTAT(VR), 2W 1K OHM  
KNOB  
STARTER SWITCH .............................................1 ............. REPLACES P/N 0602100009  
KEY, IGNITION SWITCH  
PREHEAT LAMP  
BULB, DC18V  
TACHOMETER  
OIL PRESSURE GAUGE  
WATERTEMPERATURE GAUGE  
CHARGING AMMETER  
FUEL GAUGE  
ALARM LAMP  
BULB, DC18V  
PANEL LIGHT......................................................1 ............. REPLACES P/N 0601810141  
SWITCH, PANEL LIGHT  
STOPPER  
MACHINE SCREW  
MACHINE SCREW  
SET SCREW  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
3
1
1
2
4
2
2
SNAP RING  
ENGINE CONTROLLER ......................................1 ............. REPLACES P/N 0602202523  
HEX, HEAD BOLT  
HEX, NUT  
RELAY .................................................................2 ............. REPLACES P/N 0602201400  
GLOW RELAY .....................................................1 ............. REPLACES P/N 0602202502  
MACHINE SCREW  
ALARM LAMP .....................................................1 ............. S/N 8100231~ AND ABOVE  
BULB, DC18V......................................................1 ............. S/N 8100231~ AND ABOVE  
SWITCH BRACKET ............................................1 ............. S/N 8101736 ~AND ABOVE  
MACHINE SCREW..............................................4 ............. S/N 8101736 ~AND ABOVE  
HEX, NUT............................................................4 ............. S/N 8101736 ~AND ABOVE  
WIRE HARNESS, GENERATOR .........................1 ............. S/N 8100001~8101735  
WIRE HARNESS, GENERATOR .........................1 ............. S/N 8101736 ~AND ABOVE  
WIRE HARNESS, ENGINE .................................1 ............. S/N 8100001 ~8101465  
WIRE HARNESS, ENGINE .................................1 ............. S/N 8101466 ~ AND ABOVE  
2
2
4
59  
59A  
60  
60  
61  
61  
62  
FUSE, 5A  
2
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 57  
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DCA-25USI2XF— CONTROL BOX ASSY.  
CONTROL BOX ASSY. (DCAUSI2XF ONLY)  
PAGE 58 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USI2XF— CONTROL BOX ASSY.  
CONTROL BOX ASSY. (DCAUSIXF ONLY)  
NO.  
1
2
3
4
5
6
7
8
PART NO.  
PART NAME  
QTY.  
1
1
4
1
2
2
1
1
4
2
4
1
4
3
6
1
REMARKS  
M1213001002  
0601808820  
0021005080  
0601842384  
0027104010  
0601823240  
0027104030  
0601815759  
0027104020  
0601823863  
0027104016  
0601820602  
0027105016  
0601801122  
0027106020  
0601820847  
0601820848  
0027104016  
0207004000  
M1213500203  
0602202523  
5825500290  
8942481610  
0027105016  
M1213500403  
0016906016  
M1270100504  
M1550002504  
M1550002604  
M1215601204  
M1215600204  
0021104035  
0207004000  
0027104016  
0207004000  
0016906016  
M1213601704  
0317700180  
0016906016  
M1213601604  
0330000070  
0016906016  
0016906016  
0040506000  
CONTROL BOX  
CIRCUIT BREAKER, 3P 60A  
MACHINE SCREW  
RESISTOR, 20W 50 OHM  
MACHINE SCREW  
RECTIFIER  
MACHINE SCREW  
TERMINAL BOARD  
MACHINE SCREW  
RELAY UNIT  
MACHINE SCREW  
AUTOMATICVOLTAGE REGULATOR  
MACHINE SCREW  
CURRENTTRANSFORMER, 100/5A  
MACHINE SCREW  
OVER CURRENT RELAY  
OVER CURRENT RELAY  
MACHINE SCREW  
NUT, SELF-LOCKING  
ENGINE CONTROLLER  
HEX, HEAD BOLT  
RELAY .................................................................2 ............. REPLACES P/N 0602201400  
GLOW RELAY .....................................................1 ............. REPLACES P/N 0602202502  
MACHINE SCREW  
CONTROL BOX COVER  
HEX, HEAD BOLT  
SELECTOR SWITCH  
DECAL; SELECTOR SWITCH NUMBER  
DECAL; SELECTOR SWITCH NUMBER  
SWITCH BRACKET  
SWITCH BRACKET  
MACHINE SCREW  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
18A  
19  
20  
21  
22  
23  
24  
25  
26  
26A  
26B  
27  
28  
29  
29A  
30  
30A  
31  
32  
32-1  
33  
34  
34-1  
35  
36  
36A  
1
2
2
1
4
4
1
4
1
1
1
1
1
4
4
4
4
4
1
1
4
1
1
6
10  
1
NUT, SELF-LOCKING  
MACHINE SCREW  
NUT, SELF-LOCKING  
HEX, HEAD BOLT  
SWITCH COVER  
RUBBER SEAL  
HEX, HEAD BOLT  
SWITCH COVER  
RUBBER SEAL  
HEX, HEAD BOLT  
HEX, HEAD BOLT  
TOOTHEDWASHER  
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 59  
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DCA-25USI2XF— CONTROL BOX ASSY. (CONTINUED  
CONTROL BOX ASSY. (DCAUSI2XF ONLY)  
PAGE 60 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USI2XF— CONTROL BOX ASSY. (CONTINUED)  
CONTROL BOX ASSY. (DCAUSI2XF ONLY)  
NO.  
37  
38  
39  
40  
41  
42  
43  
44  
45  
45A  
46  
46A  
47  
47A  
48  
49  
50  
51  
52  
53  
54  
55  
55A  
56  
57  
58  
59  
60  
PART NO.  
PART NAME  
QTY.  
REMARKS  
M1223000603  
0601807641  
0601808985  
0601801040  
0601806859  
0601801041  
0601840073  
0601840121  
0602103092  
0601810245  
8970444180  
8944024980  
0602103092  
0601810245  
0602120095  
0602122093  
0602123090  
0602121080  
0602125090  
9826800370  
0601831330  
0602103092  
0601810245  
M1225100004  
0027105010  
0027105010  
M9220100004  
0080200007  
0601851727  
M1246703604  
CONTROL PANEL ...............................................1 .............  
FREQUENCY METER, 45~65Hz 240V  
AC AMMETER, 0~50A/100A:5A  
CHANGE-OVER SWITCH, AMMETER  
AC VOLTMETER, 0~600V  
CHANGE-OVER SWITCH, AMMETER  
RHEOSTAT(VR), 2W 1K OHM  
KNOB  
1
1
1
1
1
1
1
3
3
ALARM LAMP  
BULB, DC18V  
STARTER SWITCH .............................................1 ............. REPLACES P/N 0602100009  
KEY, IGNITION SWITCH  
PREHEAT LAMP  
BULB, DC18V  
TACHOMETER  
OIL PRESSURE GAUGE  
WATERTEMPERATURE GAUGE  
CHARGING AMMETER  
FUEL GAUGE  
PANEL LIGHT......................................................1 ............. REPLACES P/N 0601810141  
SWITCH, PANEL LIGHT  
ALARM LAMP  
BULB, DC18V  
STOPPER  
MACHINE SCREW  
MACHINE SCREW  
SET SCREW  
SNAP RING  
GROMMET  
WIRE HARNESS, GENERATOR  
1
1
1
1
1
1
1
1
1
1
1
1
2
4
2
2
1
1
61  
62  
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 61  
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v
DCA-25USIXF— ENGINE AND RADIATOR ASSY.  
ENGINE AND RADIATOR ASSY. (DCAUSIXF ONLY)  
PAGE 62 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF— ENGINE AND RADIATOR ASSY.  
ENGINE AND RADIATOR ASSY. (DCAUSIXF ONLY)  
NO.  
1
1-1  
2
3
4
5
6
7
8
PART NO.  
PART NAME  
QTY.  
REMARKS  
B1925200254  
8944567411  
M1305200304  
M1305200204  
0010310025  
0040010000  
0041210000  
060500066  
ENGINE, ISUZU AA-4LE2  
1
CARTRIDGE, OIL FILTER ............................. 1 ...........REPLACES P/N 0602041210  
ENGINE FOOT  
ENGINE FOOT  
HEX, HEAD BOLT  
WASHER, LOCK  
WASHER, FLAT  
RUBBER SUSPENSION  
HEX, NUT  
1
1
8
8
8
2
2
1
1
2
2
2
1
1
4
1
4
1
1
1
1
2
1
1
3
1
1
1
1
1
1
1
1
1
0207010000  
M1923200074  
0602011079  
M9312200104  
0016908040  
0207008000  
M1312500203  
M1312500303  
0605515149  
M1312300103  
0016906020  
0602046531  
0602046611  
0602040650  
0602040552  
0016908030  
M1375100303  
M1375100203  
0605515147  
0602022560  
M1320300304  
0602022561  
0603306590  
0603300285  
0605511395  
0603306395  
0602021070  
0269200380  
9
RADIATOR  
9A  
10  
11  
12  
13  
14  
15  
16  
17  
18  
18A  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
CAP, RADIATOR  
MOUNT RUBBER  
HEX, HEAD BOLT  
HEX, NUT  
RADIATOR HOSE  
RADIATOR HOSE  
HOSE BAND  
FAN COVER  
HEX, HEAD BOLT  
AIR CLEANER  
ELEMENT, AIR CLEANER  
INDICATOR, AIR CLEANER  
BRACKET, AIR CLEANER  
HEX, HEAD BOLT  
HOSE, AIR CLEANER  
HOSE, AIR CLEANER  
HOSE BAND  
ADAPTER  
PACKING  
90 DEG. ELBOW  
CONNECTOR  
LOCKNUT  
VALVE  
HOSE JOINT  
CAP  
DRAIN HOSE  
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 63  
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DCA-25USIXF— ENGINE AND RADIATOR ASSY. (CONTINUED)  
ENGINE AND RADIATOR ASSY. (DCAUSIXF ONLY)  
PAGE 64 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF— ENGINE AND RADIATOR ASSY. (CONTINUED)  
ENGINE AND RADIATOR ASSY. (DCAUSIXF ONLY)  
NO.  
34  
35  
36  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
PART NO.  
PART NAME  
DRAIN JOINT  
PLUG  
O RING  
DRAIN HOSE  
DRAIN HOSE  
HOSE BAND  
RESERVE TANK  
CAP, RESERVE TANK  
HOSE  
BRACKET, RESERVE TANK  
HEX, HEAD BOLT  
HEX, HEAD BOLT  
HOSE  
QTY.  
1
1
1
1
1
4
1
1
1
1
1
2
1
1
3
1
1
1
1
1
2
2
1
4
REMARKS  
M9602000003  
M9200200004  
0150000018  
0199901600  
0199900800  
0605515106  
M9300000003  
M9300100003  
0199100215  
M1318100103  
0016906025  
0016906020  
0199100700  
0193600850  
0605515106  
0602120481  
0602122272  
M9200100004  
0602123266  
M1353800004  
0016908020  
0220300425  
0601822794  
0016908025  
0207008000  
8972309390  
HOSE  
HOSE BAND  
PICK UP, TACHOMETER  
UNIT, OIL PRESSURE  
ADAPTER  
UNIT, WATERTEMPERATURE  
CLAMPER ROD  
HEX, HEAD BOLT  
SEAL RUBBER  
MOTOR FAN  
HEX, HEAD BOLT  
HEX, NUT  
4
FAN BELT........................................................ 1 ..........REPLACES P/N 0602011431  
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 65  
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DCA-25USI2XF— ENGINE AND RADIATOR ASSY.  
ENGINE AND RADIATOR ASSY. (DCAUSI2XF ONLY)  
PAGE 66 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USI2XF— ENGINE AND RADIATOR ASSY.  
ENGINE AND RADIATOR ASSY. (DCAUSI2XF ONLY)  
NO.  
1
1-1  
2
3
4
5
6
7
8
PART NO.  
PART NAME  
QTY.  
REMARKS  
M1923200124  
8944567412  
M1305200304  
M1305200204  
0010310025  
0040010000  
0041210000  
060500066  
ENGINE, ISUZU BV-4LE2  
1
CARTRIDGE, OIL FILTER ............................. 1 ...........REPLACES P/N 0602041210  
ENGINE FOOT  
ENGINE FOOT  
HEX, HEAD BOLT  
WASHER, LOCK  
WASHER, FLAT  
RUBBER SUSPENSION  
HEX, NUT  
RADIATOR  
CAP, RADIATOR  
PLUG  
1
1
8
8
8
2
2
1
1
1
1
2
2
2
1
1
4
1
4
2
1
4
1
1
1
1
2
2
1
1
3
1
1
1
1
1
1
1
1
1
0207010000  
M1923200074  
0602011079  
M9200100904  
0150000016  
M9312200104  
0016908035  
0207008000  
M1312500203  
M1312500303  
0605515149  
M1312300103  
0016906020  
0220300425  
0601822794  
0016908025  
0602046531  
0602046611  
0602040650  
0602040552  
0016908030  
0207008000  
M1375100303  
M1373101403  
0605515147  
0602022560  
M1320300304  
0602022561  
0603306590  
0603300285  
0605511395  
0603306395  
0602021070  
0269200350  
9
9-1  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
23A  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
O-RING  
MOUNT RUBBER  
HEX, HEAD BOLT  
HEX, NUT  
RADIATOR HOSE  
RADIATOR HOSE  
HOSE BAND  
FAN COVER  
HEX, HEAD BOLT  
SEAL RUBBER  
MOTOR FAN  
HEX, HEAD BOLT  
AIR CLEANER  
ELEMENT, AIR CLEANER  
INDICATOR, AIR CLEANER  
BRACKET, AIR CLEANER  
HEX, HEAD BOLT  
HEX, NUT  
HOSE, AIR CLEANER  
HOSE, AIR CLEANER  
HOSE BAND  
ADAPTER  
PACKING  
90 DEG. ELBOW  
CONNECTOR  
LOCKNUT  
VALVE  
HOSE JOINT  
CAP  
DRAIN HOSE  
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 67  
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DCA-25USI2XF— ENGINE AND RADIATOR ASSY. (CONTINUED)  
ENGINE AND RADIATOR ASSY. (DCAUSI2XF ONLY)  
PAGE 68 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USI2XF— ENGINE AND RADIATOR ASSY. (CONTINUED)  
ENGINE AND RADIATOR ASSY. (DCAUSI2XF ONLY)  
NO.  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
PART NO.  
PART NAME  
QTY.  
1
1
1
2
1
1
4
1
1
1
1
1
2
1
1
3
REMARKS  
M9602000003  
M9200200004  
0150000018  
0016906020  
0199901600  
0199900800  
0605515106  
M9300000003  
M9300100003  
0199100215  
M1316100603  
0016906025  
0016906020  
0199100700  
0193600850  
0605515106  
0602120481  
0602122272  
M9200100004  
0602123266  
M1353800004  
0016908020  
8972309390  
DRAIN JOINT  
PLUG  
O-RING  
HEX, HEAD BOLT  
DRAIN HOSE  
DRAIN HOSE  
HOSE BAND  
RESERVE TANK  
CAP, RESERVE TANK  
HOSE  
BRACKET, RESERVE TANK  
HEX, HEAD BOLT  
HEX, HEAD BOLT  
HOSE  
HOSE  
HOSE BAND  
PICK UP, TACHOMETER  
UNIT, OIL PRESSURE  
ADAPTER  
UNIT, WATERTEMPERATURE  
CLAMPER ROD  
HEX, HEAD BOLT  
1
1
1
1
1
2
FAN BELT........................................................ 1 ..........REPLACES P/N 0602011431  
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 69  
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DCA-25USIXF/DCA-25USI2XF— OUTPUTTERMINAL ASSY.  
OUTPUT TERMINAL ASSY.  
ADD THE FOLLOWING DIGITS AFTER THE PART  
NUMBER WHEN ORDERING ANY PAINTED PANEL TO  
INDICATE COLOR OF UNIT:  
1-ORANGE  
5-BLACK  
2-WHITE  
3-SPECTRUM GREY  
4-SUNBELT GREEN  
6-CATERPILLAR YELLOW  
7-CATO GOLD  
8-RED  
THE SERIAL NUMBER MAY BE REQUIRED.  
PAGE 70 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF/DCA-25USI2XF— OUTPUTTERMINAL ASSY.  
OUTPUT TERMINAL ASSY.  
NO.  
1
2
3
4
5
6
7
8
PART NO.  
PART NAME  
QTY.  
1
5
REMARKS  
M1230700003  
M9220000004  
M9220000104  
0039308000  
0040008000  
0041408000  
0016906025  
M1238100603  
M1236101103  
M1238100704  
0605010040  
0027103010  
0030003000  
0041203000  
0016906020  
0016906016  
M1236400004  
M1236300004  
0016906020  
0601808803  
0601808804  
M1260700204  
0222100115  
0016906020  
0601812598  
0601812538  
0027104018  
0207004000  
M1238100503  
0010112045  
0010112040  
0041212000  
M9310200004  
0030012000  
M1236400104  
M1493408804  
0016906016  
TERMINAL PANEL  
OUTPUT TERMINAL BOLT  
TIE SCREW  
5
HEX, NUT  
10  
15  
20  
4
WASHER, LOCK  
WASHER, FLAT  
HEX, HEAD BOLT  
TERMINAL COVER ........................................ 1 ...........DCA25USI  
TERMINAL COVER ........................................ 1 ...........DCA25USI2  
OUTPUTWINDOW  
HINGE  
MACHINE SCREW  
HEX, NUT  
WASHER, FLAT  
HEX, HEAD BOLT  
8
9
1
2
8
8
4
2
4
1
1
6
2
2
1
1
2
2
2
8
8
1
10  
11  
11A  
11B  
13  
14  
15  
16  
17  
18  
19  
20  
20A  
21  
22  
23  
24  
24A  
25  
26  
26  
27  
28  
29  
30  
30A  
31  
HEX, HEAD BOLT  
CABLE OUTLET COVER  
SUPPORTER, CABLE OUTLET COVER  
HEX, HEAD BOLT  
CIRCUIT BREAKER, 1P@ 20A  
CIRCUIT BREAKER, 2P@50A  
BREAKER FITTING COVER  
CUSHION RUBBER  
HEX, HEAD BOLT  
RECEPTACLE,125V 20A X 2 (GFCI)  
RECEPTACLE ,CS6369 250V 50A  
MACHINE SCREW  
HEX, NUT  
TERMINAL COVER  
HEX, HEAD BOLT .......................................... 2 ...........DCA25USI  
HEX, HEAD BOLT .......................................... 2 ...........DCA25USI2  
WASHER, FLAT  
STAY RUBBER  
HEX, NUT  
COVER ........................................................... 1 ...........DCA25USI2  
ACOUSTIC SHEET ........................................ 1 ...........DCA25USI2  
HEX, HEAD BOLT .......................................... 4 ...........DCA25USI2  
2
2
2
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 71  
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DCA-25USIXF/DCA-25USI2XF— BATTERY ASSY.  
BATTERY ASSY.  
PAGE 72 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF/DCA-25USI2XF— BATTERY ASSY.  
BATTERY ASSY.  
NO.  
1
2
3
4
5
6
7
8
PART NO.  
PART NAME  
QTY.  
REMARKS  
0602220185  
M9310500014  
M9103000304  
0602220920  
0040006000  
M1348400204  
M1348400314  
0016910020  
0040510000  
BATTERY  
1
1
1
2
2
1
1
1
1
BATTERY SHEET  
BATTERY BAND  
BATTERY BOLT SET  
WASHER, LOCK  
BATTERY CABLE  
BATTERY CABLE  
HEX, HEAD BOLT  
TOOTHEDWASHER  
8A  
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 73  
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DCA-25USIXF— MUFFLER ASSY.  
MUFFLER ASSY. (DCA-25USIXF ONLY)  
PAGE 74 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF — MUFFLER ASSY.  
MUFFLER ASSY. (DCA-25USIXF ONLY)  
NO.  
1
1
2
3
3
4
5
5
PART NO.  
PART NAME  
QTY.  
REMARKS  
M1332000002  
M1332000012  
0016908020  
M1335000103  
M1335000113  
8970420280  
M0335200004  
8970420280  
MUFFLER....................................................... 1 ...........S/N 810000 ~8101465  
MUFFLER....................................................... 1 ...........S/N 8101466 AND ABOVE  
HEX, HEAD BOLT  
7
EXHAUST PIPE ............................................. 1 ...........S/N 810000 ~8101465  
EXHAUST PIPE ............................................. 1 ...........S/N 8101466 AND ABOVE  
GASKET ........................................................ 1 ...........REPLACES S/N 0602320100  
GASKET ........................................................ 1 ...........S/N 810000 ~8101465  
GASKET ........................................................ 1 ...........S/N 8101466 AND ABOVE  
......................................................................................REPLACES S/N 0602320100  
6
7
7
0207008000  
0016908030  
0016908030  
HEX NUT  
4
HEX HEAD BOLT ........................................... 2 ...........S/N 810000 ~8101465  
HEX HEAD BOLT ........................................... 4 ...........S/N 8101466 AND ABOVE  
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 75  
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DCA-25USI2XF— MUFFLER ASSY.  
MUFFLER ASSY. (DCA-25USI2XF ONLY)  
PAGE 76 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USI2XF— MUFFLER ASSY.  
MUFFLER ASSY. (DCA-25USI2XF ONLY)  
NO.  
1
2
3
4
5
6
6-1  
7
8
PART NO.  
PART NAME  
MUFFLER  
GASKET  
HEX, HEAD BOLT  
STAY  
HEX, HEAD BOLT  
EXHAUST PIPE  
HEAT INSULATOR1  
QTY.  
REMARKS  
M1332000512  
M1333200304  
0016908035  
M1333300204  
0016908020  
M1333003013  
M1490003604  
8970420280  
M1333200214  
0207008000  
0016908035  
1
1
6
1
6
1
GASKET ........................................................ 1 ...........REPLACES P/N 0602320100  
GASKET  
HEX NUT  
HEX HEAD BOLT  
1
4
4
9
10  
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 77  
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DCA-25USIXF/DCA-25USI2XF— FUELTANK ASSY.  
FUEL TANK ASSY.  
PAGE 78 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF/DCA-25USI2XF— FUELTANK ASSY.  
FUEL TANK ASSY.  
NO.  
1
2
3
4
5
6
7
8
PART NO.  
PART NAME  
QTY.  
REMARKS  
M1363001302  
0605505072  
0605501098  
0605516090  
0027104016  
M1363300314  
0016908035  
0602022791  
0191301200  
0605515109  
8943672922  
8943692993  
M1368700004  
0016908020  
8970398340  
8944370220  
0016906025  
M1363400404  
0603306863  
0602022971  
0191200330  
0191200200  
0191201300  
0191200800  
0605515198  
0603306797  
0222100550  
FUELTANK  
1
1
1
1
5
2
8
2
1
7
FUEL TANK CAP  
FUEL SENDER UNIT  
GASKET  
MACHINE SCREW  
TANK SUPPORT  
HEX, HEAD BOLT  
HOSE JOINT  
9
VENT HOSE  
HOSE BAND  
10  
11  
11A  
12  
13  
14  
14A  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
FUEL FILTER ASSY....................................... 1 ...........REPLACES P/N 0602042202  
CARTRIDGE, FUEL FILTER .......................... 1 ...........REPLACES P/N 0602042700  
BRACKET, FUEL FILTER  
HEX, HEAD BOLT  
1
4
FUEL PUMP ................................................... 1 ...........REPLACES P/N 0602023177  
FUEL FILTER, KIT  
HEX, HEAD BOLT  
PICKUP TUBE  
BUSHING  
1
2
2
2
2
1
1
1
1
3
1
4
HOSE JOINT  
SUCTION HOSE  
SUCTION HOSE  
SUCTION HOSE  
RETURN HOSE  
HOSE BAND  
PLUG, 1-1/2  
TANK SHEET  
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 79  
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DCA-25USIXF— ENCLOSURE ASSY.  
ENCLOSURE ASSY. (DCA25USIXF ONLY)  
PAGE 80 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF— ENCLOSURE ASSY.  
ENCLOSURE ASSY. (DCA25USIXF ONLY)  
NO.  
1
1A  
2
3
4
5
5A  
6
7
7A  
8
PART NO.  
PART NAME  
QTY.  
1
1
1
1
6
1
1
1
1
1
1
1
5
5
9
4
REMARKS  
M1413002502  
M1493000004  
M1413100003  
0603306797  
0016910030  
M1424000502  
M1495100403  
0601850151  
M1424200702  
M1495100503  
0601851740  
0601850239  
0601850097  
0027208025  
0016908020  
0016906020  
0016908020  
M1425201204  
0016906020  
M1424200803  
0016906020  
M1425200903  
M1423202003  
0019208020  
M1435300503  
M1435300603  
0013612030  
0040012000  
0041212000  
0013612030  
0040012000  
0041212000  
M1445000802  
M1495300304  
0016908020  
BASE  
ACOUSTIC SHEET  
ENVIRONMENTALTANK  
PLUG, 1-1/2  
HEX, HEAD BOLT  
FRONT FRAME  
ACOUSTIC SHEET  
GROMMET  
FRONT DUCT  
ACOUSTIC SHEET  
GROMMET  
9
GROMMET  
STOPPER  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
19  
20  
21  
22  
23  
23A  
24B  
24  
24A  
24B  
25  
25A  
26  
MACHINE SCREW  
HEX, HEAD BOLT  
HEX, HEAD BOLT  
HEX, HEAD BOLT  
DUCT COVER  
HEX, HEAD BOLT  
HOSE COVER  
HEX, HEAD BOLT  
6
2
10  
1
4
COVER, FROM FRAME ................................. 1 ...........S/N 8100001~8101465  
COVER, FROM FRAME ................................. 1 ...........S/N 8101466 AND ABOVE  
HEX, HEAD BOLT  
CENTER FRAME  
CENTER FRAME  
HEX, HEAD BOLT  
WASHER, LOCK  
WASHER, FLAT  
HEX, HEAD BOLT  
WASHER, LOCK  
WASHER, FLAT  
REAR FRAME  
5
1
1
4
4
4
4
4
4
1
1
4
ACOUSTIC SHEET  
HEX, HEAD BOLT  
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 81  
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DCA-25USIXF— ENCLOSURE ASSY. (CONTINUED)  
ENCLOSURE ASSY. (DCA25USIXF ONLY)  
PAGE 82 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF— ENCLOSURE ASSY. (CONTINUED)  
ENCLOSURE ASSY. (DCA25USIXF ONLY)  
NO.  
27  
27A  
27B  
28  
28A  
29  
PART NO.  
PART NAME  
QTY.  
1
1
1
1
2
7
REMARKS  
M1445300103  
M1495300504  
M1495300604  
M1445400103  
M1495300604  
0207006000  
REAR COVER  
ACOUSTIC SHEET  
ACOUSTIC SHEET  
DUCT  
ACOUSTIC SHEET  
HEX, NUT  
30  
31  
32  
33  
33A  
34  
35  
35A  
36  
37  
38  
39  
39A  
40  
41  
42  
43  
43A  
44  
45  
45A  
46  
46A  
46B  
47  
47A  
47B  
46C  
48  
48A  
49  
0019208020  
HEX, HEAD BOLT  
REAR DOOR  
WINDOW PLATE  
HEX, NUT  
WASHER, FLAT  
DOOR HANDLE ASSY.  
MACHINE SCREW  
HEX, NUT  
HINGE  
HINGE  
HEX, HEAD BOLT  
ROOF PANEL  
ACOUSTIC SHEET  
HEX, HEAD BOLT  
COVER  
HEX, HEAD BOLT  
SPLASHER PANEL  
ACOUSTIC SHEET  
HEX, HEAD BOLT  
SIDE PANEL  
ACOUSTIC SHEET  
SIDE DOOR  
ACOUSTIC SHEET  
ACOUSTIC SHEET  
SIDE DOOR  
ACOUSTIC SHEET  
ACOUSTIC SHEET  
ACOUSTIC SHEET  
SIDE DOOR  
ACOUSTIC SHEET  
DUCT  
ACOUSTIC SHEET  
ACOUSTIC SHEET  
ACOUSTIC SHEET  
HEX, NUT  
6
1
1
10  
10  
1
4
4
2
2
8
1
1
23  
1
2
1
1
4
1
1
1
1
1
1
1
1
1
1
1
1
3
1
M1445200303  
M1445600204  
0207306000  
0041206000  
M9113000002  
0021806016  
0030006000  
M9112100404  
M9112100604  
0016908020  
M1463001402  
M1495500213  
0019208020  
M1465400104  
0019208020  
M1455200702  
M1495401004  
0016908020  
M1455100003  
M1495400904  
M1455000903  
M1495500904  
M1495501004  
M1455000803  
M1495501204  
M1495501304  
M1495401304  
M1455000703  
M1495501104  
M1455300403  
M1495401204  
M1495401304  
M1495401404  
0207006000  
49A  
49B  
49C  
50  
1
6
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 83  
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DCA-25USIXF— ENCLOSURE ASSY. (CONTINUED)  
ENCLOSURE ASSY. (DCA25USIXF ONLY)  
PAGE 84 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF— ENCLOSURE ASSY. (CONTINUED)  
ENCLOSURE ASSY. (DCA25USIXF ONLY)  
NO.  
51  
51A  
52  
52A  
53  
54  
55  
56  
57  
60  
61  
62  
63  
63A  
64  
67  
67A  
68  
69  
70  
PART NO.  
PART NAME  
QTY.  
2
2
8
8
4
4
8
32  
2
1
1
4
1
1
4
1
1
REMARKS  
M9113000002  
C9312500004  
0021806016  
0030006000  
M9112100404  
M9112100504  
M9112100604  
0016908020  
0016908020  
M1435000903  
M1435000803  
0016908020  
M1435000703  
M1498200004  
0016908020  
0016908020  
0040508000  
0605503066  
M1414800204  
0017108020  
M1423202103  
0016906016  
DOOR HANDLE ASSY.  
SEAL RUBBER  
MACHINE SCREW  
HEX, NUT  
HINGE  
HINGE  
HINGE  
HEX, HEAD BOLT  
HEX, HEAD BOLT  
BRACKET STAY  
BRACKET STAY  
HEX, HEAD BOLT  
SUPPORT LEG  
ACOUSTIC SHEET  
HEX, HEAD BOLT  
HEX, HEAD BOLT  
TOOTHEDWASHER  
FUEL LEAK DETECTED SWITCH  
BRACKET  
1
1
2
HEX, HEAD BOLT  
71  
72  
FRONT LOUVER............................................ 1 ...........S/N 8101466 AND ABOVE  
HEX, HEAD BOLT .......................................... 8 ...........S/N 8101466 AND ABOVE  
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 85  
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DCA-25USI2XF— ENCLOSURE ASSY.  
ENCLOSURE ASSY. (DCA25USI2XF ONLY)  
PAGE 86 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USI2XF— ENCLOSURE ASSY.  
ENCLOSURE ASSY. (DCA25USIXF ONLY)  
NO.  
1
1A  
2
3
4
5
5
6
7
PART NO.  
PART NAME  
QTY.  
1
1
1
1
6
1
1
6
1
1
1
1
1
1
1
10  
1
6
2
10  
1
5
1
5
1
1
8
5
1
1
4
4
4
4
REMARKS  
M1413003902  
M1493000704  
M1413100003  
0603306797  
0016910030  
M1424000502  
M1413600004  
0016908020  
M1423002402  
M1493108303  
0601850151  
M1423202602  
M1493108003  
0601851740  
0601850239  
0016908020  
0016906020  
0016908020  
M1423202704  
0016906020  
M1423202704  
0016906020  
M1424200803  
0016906020  
M1423202003  
M1423202103  
0016906016  
0019208020  
M1433001403  
M1433400003  
0013612030  
0040012000  
0041212000  
0013612030  
0040012000  
0041212000  
M1443001502  
M1493304004  
M1493305304  
M1453301703  
M1493305304  
M1493305404  
M1493305504  
BASE  
ACOUSTIC SHEET  
ENVIRONMENTALTANK  
PLUG, 1-1/2  
HEX, HEAD BOLT  
FRONT FRAME  
DUCT  
HEX, HEAD BOLT  
FRONT FRAME  
ACOUSTIC SHEET  
GROMMET  
7A  
8
9
FRONT DUCT  
ACOUSTIC SHEET  
GROMMET  
9A  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
27A  
27B  
28  
28A  
28B  
29  
29A  
29B  
30  
30A  
30B  
30C  
GROMMET  
HEX, HEAD BOLT  
HEX, HEAD BOLT  
HEX, HEAD BOLT  
DUCT COVER  
HEX, HEAD BOLT  
DUCT COVER  
HEX, HEAD BOLT  
HOSE COVER  
HEX, HEAD BOLT  
COVER, FROM FRAME  
FRONT LOUVER  
HEX, HEAD BOLT  
HEX, HEAD BOLT  
CENTER FRAME  
CENTER FRAME  
HEX, HEAD BOLT  
WASHER, LOCK  
WASHER, FLAT  
HEX, HEAD BOLT  
WASHER, LOCK  
WASHER, FLAT  
REAR FRAME  
ACOUSTIC SHEET  
ACOUSTIC SHEET  
DUCT COVER  
ACOUSTIC SHEET  
ACOUSTIC SHEET  
ACOUSTIC SHEET  
4
4
1
1
1
1
1
1
1
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 87  
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DCA-25USI2XF— ENCLOSURE ASSY. (CONTINUED)  
ENCLOSURE ASSY. (DCA25USI2XF ONLY)  
PAGE 88 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USI2XF— ENCLOSURE ASSY. (CONTINUED)  
ENCLOSURE ASSY. (DCA25USI2XF ONLY)  
NO.  
31  
32  
33  
34  
34A  
35  
35A  
36  
37  
38  
39  
40  
40A  
41  
42  
42A  
43  
44  
45  
46  
46A  
47  
48  
49  
50  
51  
52  
52A  
53  
53A  
53B  
54  
54A  
54B  
54C  
55  
55A  
56  
56A  
56B  
57  
PART NO.  
PART NAME  
HEX, HEAD BOLT  
HEX, NUT  
HEX, HEAD BOLT  
REAR COVER  
ACOUSTIC SHEET  
DUCT  
ACOUSTIC SHEET  
HEX, NUT  
HEX, HEAD BOLT  
REAR DOOR  
WINDOW PLATE  
HEX, NUT  
WASHER, FLAT  
DOOR HANDLE ASSY.  
MACHINE SCREW  
HEX, NUT  
HINGE  
HINGE  
HEX, HEAD BOLT  
ROOF PANEL  
ACOUSTIC SHEET  
HEX, HEAD BOLT  
COVER  
HEX, HEAD BOLT  
SPLASHER PANEL  
HEX, HEAD BOLT  
SIDE PANEL  
ACOUSTIC SHEET  
SIDE DOOR  
ACOUSTIC SHEET  
ACOUSTIC SHEET  
SIDE DOOR  
ACOUSTIC SHEET  
ACOUSTIC SHEET  
ACOUSTIC SHEET  
SIDE DOOR  
QTY.  
1
2
4
1
1
1
1
7
6
1
1
10  
10  
1
4
4
2
2
8
1
1
23  
1
4
1
4
1
1
1
1
1
1
1
REMARKS  
0016906016  
0207006000  
0019208020  
M1443302203  
M1493305104  
M1443400103  
M1493305204  
0207006000  
0019208020  
M1445200303  
M1445600204  
0207306000  
0041206000  
M9113000002  
0021806016  
0030006000  
M9112100404  
M9112100604  
0016908020  
M1463001902  
M1493505603  
0019208020  
M3310600004  
0019208020  
M1453200802  
0016908020  
M1455100003  
M1493410104  
M1453004903  
M1493409904  
M1495501004  
M1455000803  
M1495501204  
M1495501304  
M1495401404  
M1453005003  
M1493410004  
M1455300403  
M1495401204  
M1495401404  
0207006000  
1
1
1
1
1
3
1
6
ACOUSTIC SHEET  
DUCT  
ACOUSTIC SHEET  
ACOUSTIC SHEET  
HEX, NUT  
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 89  
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DCA-25USI2XF— ENCLOSURE ASSY. (CONTINUED)  
ENCLOSURE ASSY. (DCA25USI2XF ONLY)  
PAGE 90 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USI2XF— ENCLOSURE ASSY. (CONTINUED)  
ENCLOSURE ASSY. (DCA25USI2XF ONLY)  
NO.  
58  
58A  
59  
59A  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
70A  
71  
72  
72A  
73  
PART NO.  
PART NAME  
QTY.  
2
2
8
8
4
4
8
32  
2
5
5
1
1
4
1
1
4
1
1
1
2
4
1
1
2
REMARKS  
M9113000002  
C9312500004  
0021806016  
0030006000  
M9112100404  
M9112100504  
M9112100604  
0016908020  
0016908020  
0601850097  
0027208025  
M1433300003  
M1435000803  
0016908020  
M1433001103  
M1493200004  
0016908020  
0016908020  
0040508000  
0600800321  
0605503066  
0016906016  
0605503066  
M1414800204  
0017108020  
DOOR HANDLE ASSY.  
SEAL RUBBER  
MACHINE SCREW  
HEX, NUT  
HINGE  
HINGE  
HINGE  
HEX, HEAD BOLT  
HEX, HEAD BOLT  
STOPPER  
MACHINE SCREW  
BRACKET STAY  
BRACKET STAY  
HEX, HEAD BOLT  
SUPPORT LEG  
ACOUSTIC SHEET  
HEX, HEAD BOLT  
HEX, HEAD BOLT  
TOOTHEDWASHER  
MANUAL HOLDER  
CLAMP, MANUAL HOLDER  
HEX, HEAD BOLT  
FUEL LEAK DETECTED SWITCH  
BRACKET  
74  
75  
76  
77  
78  
HEX, HEAD BOLT  
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 91  
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DCA-25USIXF/DCA-25USI2XF— RUBBER SEALS ASSY.  
RUBBER SEALS ASSY.  
PAGE 92 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF/DCA-25USI2XF— RUBBER SEALS ASSY.  
RUBBER SEALS ASSY.  
NO.  
1
2
3
4
5
6
7
8
PART NO.  
PART NAME  
QTY.  
REMARKS  
0229200790  
0314500560  
0229200630  
0228901220  
0228900690  
0228800690  
0228900655  
0228900325  
0229200325  
0228800595  
0228800590  
0228800375  
0228900375  
0229200650  
0229200320  
0228800650  
0228900520  
0228900510  
0228800520  
0228800510  
0228100390  
0228100320  
SEAL RUBBER  
SEAL RUBBER  
SEAL RUBBER  
SEAL RUBBER  
SEAL RUBBER  
SEAL RUBBER  
SEAL RUBBER  
SEAL RUBBER  
SEAL RUBBER  
3
2
1
3
3
1
1
1
1
9
10  
10  
11  
12  
13  
14  
15  
16  
16  
17  
17  
18  
19  
SEAL RUBBER .............................................. 1 ...........DCA25USI  
SEAL RUBBER .............................................. 1 ...........DCA25USI2  
SEAL RUBBER  
SEAL RUBBER  
SEAL RUBBER  
SEAL RUBBER  
SEAL RUBBER  
SEAL RUBBER  
SEAL RUBBER  
1
1
2
2
2
1
1
SEAL RUBBER .............................................. 1 ...........DCA25USU  
SEAL RUBBER .............................................. 1 ...........DCA25USI2  
SEAL RUBBER  
SEAL RUBBER  
2
2
1
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 93  
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DCA-25USIXF/DCA-25USI2XF— NAMEPLATE AND DECALS ASSY.  
NAME PLATE ASSY.  
PAGE 94 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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DCA-25USIXF/DCA-25USI2XF— NAMEPLATE AND DECALS ASSY.  
NAME PLATE ASSY.  
NO.  
1
PART NO.  
PART NAME  
QTY.  
REMARKS  
M1512400002  
M1510300902  
M1512400122  
M1510301002  
M1550000104  
M1550000204  
M1552000603  
M9500000004  
M9500100004  
M9500300004  
M9500300104  
M9500500004  
M9500500304  
M9503000004  
M9503000103  
M9503100004  
M9503200004  
M9510000004  
M9510100004  
M9512200004  
M9520000004  
M9520000104  
M9520000204  
M9520100004  
M9520100204  
M9520100304  
M9520100404  
M9520100503  
M9520200003  
M9520200104  
M1561000004  
M1561000004  
M1561000004  
M1562100004  
M1562100103  
M1562100204  
M1562100304  
M1562100404  
M9510100304  
0600500092  
DECAL;GENERATOR CONTROL, DCAUSIXF ...... 1 ............M11240000A  
DECAL;GENERATOR CONTROL, DCAUSI2XF .... 1 ............M11030090  
DECAL; ENGINE OPERATING, DCAUSIXF .......... 1 ............M11240012  
DECAL; ENGINE OPERATING, DCAUSI2XF......... 1 ............M15000010  
DECAL;NOTE ........................................................ 1 ............M15000010  
DECAL;NOTE ........................................................ 1 ............M15000020  
DECAL; AUXILLARY OUTPUT ............................... 1 ............M15200060  
DECAL; OIL DRAIN PLUG ..................................... 1 ............M90000000  
DECAL;WATER ...................................................... 1 ............M90010000  
DECAL; - ................................................................ 1 ............M90030000  
DECAL; + ............................................................... 1 ............M90030010  
DECAL; DIESEL FUEL, DCA25USIXF................... 1 ............M90050000  
DECAL; DIESEL FUEL, DCA25USI2XF ................. 1 ............M90050030  
DECAL;WARNING MOVING PARTS ..................... 2 ............M90300000  
DECAL;WATER - OIL CHECK ............................... 1 ............M90300010  
DECAL;WARNING HOT COOLANT ....................... 1 ............M90310000  
DECAL;WARNING ENGINE EXHAUST ................. 1 ............M90320000  
DECAL; FLUID DRAIN ........................................... 1 ............M91000000  
DECAL; CAUTION HOT PARTS ............................. 1 ............M91010000  
DECAL; MQ ............................................................ 1 ............M91220000  
DECAL; GROUND .................................................. 1 ............M92000000  
DECAL; AMMETER CHANGE-OVER SW. ............. 1 ............M92000010  
DECAL;VOLTMETER CHANGE-OVER SW. .......... 1 ............M92000020  
DECAL;WARNING ELECTRIC SHOCK HAZARD . 2 ............M92010000  
DECAL;CAUTION .................................................. 1 ............M92010020A  
DECAL; SAFETY INSTRUCTION........................... 1 ............M92010030  
DECAL; DANGER HIGH VOLTAGE ........................ 1 ............M92010040  
DECAL;WARNING ................................................. 1 ............M92010050  
DECAL; CONNECTION OF OUTPUT CABLE ........ 1 ............M92020000  
DECAL; OVER CURRENT RELAY ......................... 1 ............M92020010  
DECAL; MQ POWER, DCA25USI .......................... 3 ............S/N 8011111TO 8100219  
DECAL; MQ POWER, DCA25USI .......................... 2 ............S/N 8100220~  
1
2
2
3
4
5
6
7
8
9
10  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
28  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
38  
39  
40  
41  
42  
DECAL; MQ POWER, DCA25USI2  
STRIPE  
STRIPE; WHISPERWATT  
STRIPE; 25  
STRIPE; 25  
STRIPE  
2
2
2
1
1
2
DECAL;ENVIR.WARNING .................................... 1 ............M91010030  
PLATE; MQ POWER  
MACHINE SCREW  
DECAL;CAUTION  
1
4
1
0021106016  
M1550001404  
M9520000804  
M9520000804  
M9510000104  
M1550001404  
M9521000004  
M9504200004  
DECAL; AC, DCA25USIXF..................................... 1 ............M92000080 S/N 8101596~  
DECAL; AC, DCA25USI2XF  
DECAL; DOCUMENT BOX, DCA25USI2XF ........... 1 ............M91000010  
DECAL;CAUTION, DCA25USI2XF ........................ 1 ............M15000120  
DECAL;TERMINAL, DCA25USI2XF  
1
1
DECAL; WARNING START FIRES, DCA25USI2XF 1 ............M904200010 S/N 8103260~  
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 95  
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Effective:October 1, 2002  
TERMS AND CONDITIONS OF SALE — PARTS  
PAYMENT TERMS  
5. Partsmustbeinnewandresalablecon- forpricedeclinesandaddedchargesforprice  
dition,intheoriginalMultiquippackage(if increaseswillnotbemadeforstockonhandat  
any), and with Multiquip part numbers thetimeofanypricechange.  
Terms of payment for parts are net 10 days.  
FREIGHTPOLICY  
clearlymarked.  
Multiquip reserves the right to quote and sell  
All parts orders will be shipped collect or  
prepaidwiththechargesaddedtotheinvoice.  
All shipments are F.O.B. point of origin.  
Multiquip’sresponsibilityceaseswhenasigned  
manifesthasbeenobtainedfromthecarrier,  
andanyclaimforshortageordamagemustbe  
settledbetweentheconsigneeandthecarrier.  
6. Thefollowingitemsarenotreturnable:  
directtoGovernmentagencies,andtoOriginal  
Equipment Manufacturer accounts who use  
our products as integral parts of their own  
products.  
a. Obsolete parts. (If an item is in the  
price book and shows as being  
replaced by another item, it is  
obsolete.)  
SPECIALEXPEDITINGSERVICE  
b. Any parts with a limited shelf life A$35.00surchargewillbeaddedtotheinvoice  
(such as gaskets, seals, “O” rings, forspecialhandlingincludingbusshipments,  
andotherrubberparts)thatwerepur- insuredparcelpostorincaseswhereMultiquip  
chasedmorethansixmonthspriorto mustpersonallydeliverthepartstothecarrier.  
MINIMUMORDER  
TheminimumchargeforordersfromMultiquip  
is $15.00 net. Customers will be asked for  
instructionsregardinghandlingofordersnot  
meetingthisrequirement.  
thereturndate.  
LIMITATIONSOFSELLER’SLIABILITY  
c. Anylineitemwithanextendeddealer  
Multiquip shall not be liable here under for  
damagesinexcessofthepurchasepriceofthe  
netpriceoflessthan$5.00.  
RETURNEDGOODSPOLICY  
d. Special order items.  
itemwithrespecttowhichdamagesareclaimed,  
andinnoeventshallMultiquipbeliableforloss  
of profit or good will or for any other special,  
consequentialorincidentaldamages.  
Returnshipmentswillbeacceptedandcredit  
willbeallowed,subjecttothefollowingprovi-  
sions:  
e. Electricalcomponents.  
f. Paint,chemicals,andlubricants.  
g. Decalsandpaperproducts.  
h. Itemspurchasedinkits.  
1. AReturnedMaterialAuthorizationmust  
be approved by Multiquip prior to ship-  
ment.  
LIMITATIONOFWARRANTIES  
Nowarranties,expressorimplied,aremadein  
connectionwiththesaleofpartsortradeacces-  
soriesnorastoanyenginenotmanufactured  
byMultiquip.Suchwarrantiesmadeinconnec-  
tion with the sale of new, complete units are  
madeexclusivelybyastatementofwarranty  
packagedwithsuchunits,andMultiquipnei-  
ther assumes not authorizes any person to  
assume for it any other obligation or liability  
whatever in connection with the sale of its  
products.Apartfromsuchwrittenstatementof  
warranty, there are no warranties, express,  
impliedorstatutory,whichextendbeyondthe  
descriptionoftheproductsonthefacehereof.  
7. The sender will be notified of any  
materialreceivedthatisnotacceptable.  
2. ToobtainaReturnMaterialAuthorization,  
alistmustbeprovidedtoMultiquipParts  
Salesthatdefinesitemnumbers,quanti-  
ties, and descriptions of the items to be  
returned.  
8. Such material will be held for five  
workingdaysfromnotification, pending  
instructions. If a reply is not received  
within five days, the material will be re-  
turnedtothesenderathisexpense.  
a. Thepartsnumbersanddescriptions  
must match the current parts price  
list.  
9. Creditonreturnedpartswillbeissuedat  
dealer net price at time of the original  
purchase,lessa15%restockingcharge.  
b. The list must be typed or computer  
generated.  
10. In cases where an item is accepted, for  
which the original purchase document  
can not be determined, the price will be  
basedonthelistpricethatwaseffective  
twelvemonthspriortotheRMAdate.  
c. The list must state the reason(s) for  
thereturn.  
d. The list must reference the sales  
order(s)orinvoice(s)underwhichthe  
itemswereoriginallypurchased.  
11. Credit issued will be applied to future  
purchasesonly.  
e. The list must include the name and  
phonenumberofthepersonrequest-  
ingtheRMA.  
PRICINGANDREBATES  
Prices are subject to change without prior  
notice. Pricechangesareeffectiveonaspe-  
cificdateandallordersreceivedonorafterthat  
datewillbebilledattherevisedprice.Rebates  
3. AcopyoftheReturnMaterialAuthoriza-  
tionmustaccompanythereturnshipment.  
4. Freight is at the sender’s expense. All  
partsmustbereturnedfreightprepaidto  
Multiquip’sdesignatedreceivingpoint.  
PAGE 96 — DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #8 (05/08/09)  
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NOTE PAGE  
DCA-25USIXF/DCA-25USI2XF — OPERATION AND PARTS MANUAL — REV. #1 (05/08/09) — PAGE 97  
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PARTS AND OPERATION MANUAL  
OPERATION AND PARTS MANUAL  
HERE'S HOW TO GET HELP  
PLEASE HAVETHE MODEL AND SERIAL  
NUMBER ON-HANDWHEN CALLING  
MQ Power  
1800 Water Ridge Rd. Tel. (800) 883-2551  
Suite 500/600  
Fax (972) 315-1847  
Lewisville, TX 75057  
Contact: [email protected]  
MQ Parts Department  
800-427-1244  
310-537-3700  
Fax: 800-672-7877  
Fax: 310-637-3284  
Service/Tech Support/Warranty  
800-835-2551 Fax: 310-638-8046  
© COPYRIGHT 2009, MULTIQUIP INC.  
MQ Power and the MQ Power logo are registered trademarks of Multiquip Inc. and may not be used, reproduced, or altered without written permission. All other trademarks  
are the property of their respective owners and used with permission.  
This manual MUST accompany the equipment at all times. This manual is considered a permanent part of the equipment and should remain with the unit if resold.  
The information and specifications included in this publication were in effect at the time of approval for printing. Illustrations, descriptions, references and technical data  
contained in this manual are for guidance only and may not be considered as binding. Multiquip Inc. reserves the right to discontinue or change specifications, design or  
the information published in this publication at any time without notice and without incurring any obligations.  
Manufactured for  
Multiquip Inc.  
by  
Your Local Dealer is:  
DENYO CO., LTD, JAPAN  
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