Multiquip Cordless Sander EHTX44Y5 User Manual

OperatiOn Manual  
MODel eHtX44Y5  
riDe-On trOWel  
(YanMar 3tnV84t-BKSa DieSel enGine)  
Revision #0 (01/16/13)  
To find the latest revision of this  
publication, visit our website at:  
pn: 32080  
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fuel anD cHeMical eXpOSure WarninGS  
Diesel engine exhaust and some of its  
constituents, and some dust created  
by power sanding, sawing, grinding,  
drilling and other construction  
activities contain chemicals know to  
cause cancer, birth defects and other  
reproductive harm.  
!Lead from lead-based paints  
!Crystalline silica from bricks  
! Cement and other masonry products  
! Arsenic and chromium from chemically  
treated lumber  
Your risk from these exposures varies,  
depending on how often you do this  
type of work. To reduce your exposure  
to these chemicals: ALWAYS work in a  
well-ventilated area, and work with  
approved safety equipment, such as  
dust masks that are specially designed  
to filter out microscopic particles.  
page 2 — eHTx44y RIDe-ON TROWeL • OpeRaTION maNuaL — Rev. #0 (01/16/13)  
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SilicOSiS/reSpiratOrY WarninGS  
Grinding/cutting/drilling of masonry, concrete, metal and  
other materials with silica in their composition may give  
off dust or mists containing crystalline silica. Silica is a  
basic component of sand, quartz, brick clay, granite and  
numerous other minerals and rocks. Repeated and/or  
substantial inhalation of airborne crystalline silica can  
cause serious or fatal respiratory diseases, including  
silicosis. In addition, California and some other  
authorities have listed respirable crystalline silica as a  
substance known to cause cancer. When cutting such  
materials, always follow the respiratory precautions  
mentioned above.  
Grinding/cutting/drilling of masonry, concrete, metal and  
other materials can generate dust, mists and fumes  
containing chemicals known to cause serious or fatal  
injury or illness, such as respiratory disease, cancer,  
birth defects or other reproductive harm. If you are  
unfamiliar with the risks associated with the particular  
process and/or material being cut or the composition of  
the tool being used, review the material safety data  
sheet and/or consult your employer, the material  
manufacturer/supplier, governmental agencies such as  
OSHA and NIOSH and other sources on hazardous  
materials. California and some other authorities, for  
instance, have published lists of substances known to  
cause cancer, reproductive toxicity, or other harmful  
Control dust, mist and fumes at the source where  
possible. In this regard use good work practices and  
follow the recommendations of the manufacturers or  
suppliers, OSHA/NIOSH, and occupational and trade  
associations. Water should be used for dust  
suppression when wet cutting is feasible. When the  
hazards from inhalation of dust, mists and fumes cannot  
be eliminated, the operator and any bystanders should  
always wear a respirator approved by NIOSH/MSHA for  
the materials being used.  
eHTx44y5 RIDe-ON TROWeL • OpeRaTION maNuaL — Rev. #0 (01/16/13) — page 3  
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taBle Of cOntentS  
eHtX ride-On trowel  
Fuel And Chemical Exposure Warnings.................. 2  
Silicosis/Respiratory Warnings................................ 3  
Table Of Contents.................................................... 4  
Training Checklist .................................................... 6  
Daily Pre-Operation Checklist ................................. 7  
Safety Information .............................................. 8-13  
Dimensions/Specifications..................................... 14  
Specifications ........................................................ 15  
General Information............................................... 16  
Controls And Indicators .................................... 17-18  
Engine Components ............................................. 19  
Setup ..................................................................... 20  
Inspection .............................................................. 21  
Operation.......................................................... 22-25  
Maintenance..................................................... 26-43  
Wiring Diagram (Electrical) ................................... 44  
Hydraulic Diagram ................................................ 45  
Troubleshooting (Trowel)................................... 46-47  
Troubleshooting (Engine).................................. 48-49  
Specifications and part numbers are subject to change  
without notice.  
page 4 — eHTx44y RIDe-ON TROWeL • OpeRaTION maNuaL — Rev. #0 (01/16/13)  
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eHTx44y5 RIDe-ON TROWeL • OpeRaTION maNuaL — Rev. #0 (01/16/13) — page 5  
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traininG cHecKliSt  
This checklist will list some of the minimum requirements for machine maintenance and operation. Please feel free to  
detach it and make copies. Use this checklist whenever a new operator is to be trained or it can be used as a review for  
more experienced operators.  
Training Checklist  
Read operation manual  
Machine layout, location of  
components, checking of engine  
and hydraulic oil levels  
Fuel system, refueling procedure  
Operation of spray and lights  
Operation of controls (machine  
not running)  
Safety controls, safety stop switch  
Emergency stop procedures  
Startup of machine, pre-heat,  
engine choke  
Maintaining a hover  
Matching blade pitch. Twin-Pitch™  
Concrete finishing techniques  
Shutdown of machine  
Lifting of machine (lift loops)  
Machine transport and storage  
page 6 — eHTx44y RIDe-ON TROWeL • OpeRaTION maNuaL — Rev. #0 (01/16/13)  
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DailY pre-OperatiOn cHecKliSt  
Daily pre-Operation Checklist  
Engine oil level  
Hydraulic oil level  
Radiator coolant level  
Condition of blades  
Blade pitch operation  
Safety stop switch operation  
Steering control operation  
eHTx44y5 RIDe-ON TROWeL • OpeRaTION maNuaL — Rev. #0 (01/16/13) — page 7  
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SafetY infOrMatiOn  
Do not operate or service the equipment before reading  
the entire manual. 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.  
Potential hazards associated with the operation of this  
equipment will be referenced with hazard symbols which  
may appear throughout this manual in conjunction with  
safety messages.  
Safety Hazard  
SaFeTy meSSageS  
Lethal exhaust gas hazards  
The four 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 four words:  
DaNgeR, WaRNINg, CauTION or NOTICe.  
Explosive fuel hazards  
Burn hazards  
SaFeTy SymBOLS  
Indicates a hazardous situation which, if not avoided,  
WILL result in DeaTH or SeRIOuS INJuRy.  
Indicates a hazardous situation which, if not avoided,  
COuLD result in DeaTH or SeRIOuS INJuRy.  
Rotating parts hazards  
Indicates a hazardous situation which, if not avoided,  
COuLD result in mINOR or mODeRaTe INJuRy.  
Pressurized fluid hazards  
Addresses practices not related to personal injury.  
Hydraulic fluid hazards  
page 8 — eHTx44y RIDe-ON TROWeL • OpeRaTION maNuaL — Rev. #0 (01/16/13)  
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SafetY infOrMatiOn  
geNeRaL SaFeTy  
„ This equipment should only be operated by trained and  
qualified personnel 18 years of age and older.  
„ NeveR operate this equipment without proper protective  
clothing, shatterproof glasses, respiratory protection,  
hearing protection, steel-toed boots and other protective  
devices required by the job or city and state regulations.  
„ 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.  
„ NeveR use accessories or attachments that are not  
recommended by Multiquip for this equipment. Damage  
to the equipment and/or injury to user may result.  
„ Avoid wearing jewelry or loose fitting clothes that may  
snag on the controls or moving parts as this can cause  
serious injury.  
„ aLWayS know the location of the nearest  
fire extinguisher.  
„ NeveR operate this equipment when not  
feeling well due to fatigue, illness or when  
under medication.  
„ aLWayS know the location of the nearest  
first aid kit.  
„ NeveR operate this equipment under the  
influence of drugs or alcohol.  
„ 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  
„ aLWayS clear the work area of any debris, tools, etc.  
that would constitute a hazard while the equipment is  
in operation.  
„ No one other than the operator is to be in the working  
area when the equipment is in operation.  
„ DO NOT use the equipment for any purpose other than  
its intended purposes or applications.  
eHTx44y5 RIDe-ON TROWeL • OpeRaTION maNuaL — Rev. #0 (01/16/13) — page 9  
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SafetY infOrMatiOn  
„ aLWayS keep the machine in proper running condition.  
„ Fix damage to machine and replace any broken parts  
„ Engine fuel exhaust gases contain poisonous carbon  
monoxide. This gas is colorless and odorless, and can  
cause death if inhaled.  
„ 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 unauthorized personnel.  
„ The engine of this equipment requires an adequate free  
flow of cooling air.NeveR operate this equipment in any  
enclosed or narrow area  
„ A safety manual for operating and maintenance  
personnel of concrete power trowels produced by the  
Association of Equipment Manufacturers (AEM) can be  
obtained for a fee by ordering through their website at  
where free flow of the air is  
restricted. If the air flow is  
restricted it will cause injury  
to people and property and  
serious damage to the  
equipment or engine.  
Order FORM PT-160  
eNgINe SaFeTy  
„ NeveRoperatetheequipmentinanexplosive  
explosion or fire could result causing severe  
bodily harm or even death.  
„ DO NOT place hands or fingers inside engine  
compartment when engine is running.  
„ NeveR operate the engine with heat shields or  
guards removed.  
„ If applicable, NeveR use your hand to find  
hydraulic leaks. Use a piece of wood or  
cardboard. Hydraulic fluid injected into the  
skin must be treated by a knowledgeable  
physician immediately or severe injury or  
death can occur.  
„ Keep fingers, hands hair and clothing away  
from all moving parts to prevent injury.  
„ DO NOT remove the radiator cap while the  
engine is hot. High pressure boiling water will gush out  
of the radiator and severely scald any persons in the  
general area of the trowel.  
„ aLWayS keep clear of rotating or moving  
parts while operating the trowel.  
„ 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.  
„ DO NOT remove the coolant drain plug  
while the engine is hot. Hot coolant will  
gush out of the coolant tank and severely  
scald any persons in the general area of  
the trowel.  
„ DO NOT remove the engine oil drain plug while the  
engine is hot. Hot oil will gush out of the oil tank and  
severely scald any persons in the general area of the  
„ NeveR allow passengers or riders on the trowel during  
„ NeveR lubricate components or attempt service on a  
running machine.  
„ NeveR touch the hot exhaust manifold,  
muffler or cylinder.Allow these parts to cool  
before servicing equipment.  
„ NeveR place your feet or hands inside the guard rings  
while starting or operating this equipment.  
page 10 — eHTx44y RIDe-ON TROWeL • OpeRaTION maNuaL — Rev. #0 (01/16/13)  
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SafetY infOrMatiOn  
BaTTeRy SaFeTy  
„ NeveR run engine without an air filter or with a dirty air  
filter.Severe engine damage may occur.Service air filter  
frequently to prevent engine malfunction.  
„ DO NOT drop the battery. There is a possibility that the  
battery will explode.  
„ NeveR tamper with the factory settings  
of the engine or engine governor. Damage  
to the engine or equipment can result  
if operating in speed ranges above the  
maximum allowable.  
„ DO NOT expose the battery to open flames,  
sparks, cigarettes, etc.The battery contains  
combustible gases and liquids. If these  
gases and liquids come into contact with a  
flame or spark, an explosion could occur.  
FueL SaFeTy  
„ aLWayS wear safety glasses when  
handling the battery to avoid eye irritation.  
The battery contains acids that can cause  
injury to the eyes and skin.  
„ DO NOT start the engine near spilled fuel or combustible  
fluids. Fuel is extremely flammable and its vapors can  
cause an explosion if ignited.  
„ Use well-insulated gloves when picking up  
the battery.  
„ aLWayS refuel in a well-ventilated area, away from  
sparks and open flames.  
„ aLWayS keep the battery charged. If the battery is not  
charged, combustible gas will build up.  
„ aLWayS use extreme caution when working with  
flammable liquids.  
„ DO NOT charge battery if frozen. Battery can explode.  
When frozen, warm the battery to at least 61°F (16°C).  
„ DO NOT fill the fuel tank while the engine is running  
or hot.  
„ aLWayS recharge the battery in a well-ventilated  
of combustible gases.  
„ DO NOT overfill tank, since spilled fuel could ignite if it  
comes into contact with hot engine parts or sparks from  
the ignition system.  
„ If the battery liquid (dilute sulfuric acid)  
comes into contact with clothing or skin,  
rinse skin or clothing immediately with  
plenty of water.  
„ Store fuel in appropriate containers, in well-ventilated  
areas and away from sparks and flames.  
„ NeveR use fuel as a cleaning agent.  
„ DO NOT smoke around or near the  
equipment. Fire or explosion could result  
from fuel vapors or if fuel is spilled on a  
hot engine.  
„ If the battery liquid (dilute sulfuric acid) comes into  
contact with eyes, rinse eyes immediately with plenty  
of water and contact the nearest doctor or hospital to  
seek medical attention.  
„ aLWayS disconnect the NegaTIve battery terminal  
before performing service on the equipment.  
„ aLWayS keep battery cables in good working condition.  
Repair or replace all worn cables.  
eHTx44y5 RIDe-ON TROWeL • OpeRaTION maNuaL — Rev. #0 (01/16/13) — page 11  
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SafetY infOrMatiOn  
„ NeveR allow any person or animal to  
stand underneath the equipment while  
„ Check with your local county or state safety  
towing regulations, in addition to meeting  
Department of Transportation (DOT)  
SafetyTowing Regulations, before towing  
your trowel.  
„ Ride-on trowels are very heavy and  
awkward to move around. Use proper  
heavy lifting procedures and DO NOT  
attempt to lift the trowel by the guard rings.  
„ In order to reduce the possibility of an accident while  
transporting the trowel on public roads, aLWayS make  
sure the trailer that supports the trowel and the towing  
vehicle are mechanically sound and in good operating  
„ NeveR lift trowel with the operator on the machine.  
„ aLWayS shutdown engine before transporting  
„ The easiest way to lift the trowel is to utilize the lift loops  
that are welded to the frame.These lift loops are located  
to the left and right sides of the operator’s seat.  
„ Make sure the hitch and coupling of the towing vehicle  
are rated equal to, or greater than the trailer “gross  
vehicle weight rating.”  
A strap/chain can be attached to these lift loops, allowing  
a forklift or crane to lift the trowel up onto and off of a slab  
of concrete. The strap or chain should have a minimum  
of 2,000 pounds (1,000 kg) lifting capacity and the lifting  
gear must be capable of lifting at least this amount.  
„ 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. Manufacturer recommends that trailer tires be  
inflated to 50 psi cold. Also check the tire tread wear  
on both vehicles.  
„ NeveR transport trowel with float pans attached unless  
safety catches are used and are specifically cleared for  
such transport by the manufacturer.  
„ aLWayS make sure the trailer is equipped with a safety  
„ NeveR hoist the trowel more than three feet off the  
ground with float pans attached.  
„ aLWayS properly attach trailer’s safety chains to towing  
„ Before lifting, make sure that the lift loops are not  
„ aLWayS make sure the vehicle and trailer directional,  
backup, brake and trailer lights are connected and  
working properly.  
„ Always make sure crane or lifting device has been  
properly secured to the lift loops of the equipment.  
„ aLWayS shutdown engine before transporting.  
„ DOT Requirements include the following:  
„ NeveR lift the equipment while the engine is running.  
• Connect and test electric brake operation.  
„ Tighten fuel tank cap securely and close fuel cock to  
prevent fuel from spilling.  
• Secure portable power cables in cable tray with tie  
„ Use adequate lifting cable (wire or rope) of sufficient  
„ 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.  
„ DO NOT lift machine to unnecessary heights.  
„ Avoid sudden stops and starts.This can cause skidding,  
or jack-knifing. Smooth, gradual starts and stops will  
improve towing.  
„ aLWayS tie down equipment during transport by  
securing the equipment with straps. Inspect straps to  
make sure they are not frayed or damaged.  
page 12 — eHTx44y RIDe-ON TROWeL • OpeRaTION maNuaL — Rev. #0 (01/16/13)  
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SafetY infOrMatiOn  
„ Avoid sharp turns to prevent rolling.  
„ Trailer should be adjusted to a level position at all times  
when towing.  
The diesel engine used in this equipment has been  
designed to reduce harmful levels of carbon monoxide  
(CO), hydrocarbons (HC) and nitrogen oxides (NOx)  
contained in diesel exhaust emissions.  
„ Raise and lock trailer wheel stand in up position when  
„ Place chock blocks underneath wheel to prevent rolling  
while parked.  
This engine has been certified to meet US EPA Evaporative  
emissions requirements in the installed configuration.  
„ Place support blocks underneath the trailer’s bumper to  
prevent tipping while parked.  
Attempting to modify or make adjustments to the engine  
emission system by unauthorized personnel without proper  
training could damage the equipment or create an unsafe  
„ Use the trailer’s swivel jack to adjust the trailer height to  
a level position while parked.  
Additionally, modifying the fuel system may adversely affect  
evaporative emissions, resulting in fines or other penalties.  
emission Control Label  
Decommissioning is a controlled process used to safely  
retire a piece of equipment that is no longer serviceable.  
If the equipment poses an unacceptable and unrepairable  
safety risk due to wear or damage or is no longer cost  
effective to maintain (beyond life-cycle reliability) and is to  
be decommissioned (demolition and dismantlement),be  
sure to follow rules below.  
The emission control label is an integral part of the emission  
system and is strictly controlled by regulations.  
The label must remain with the engine for its entire life.  
If a replacement emission label is needed, please contact  
your authorized Yanmar Engine Distributor.  
„ DO NOT pour waste or oil directly onto the ground, down  
a drain or into any water source.  
„ Contact your country's Department of  
Public Works or recycling agency in your  
area and arrange for proper disposal of  
any electrical components, waste or oil  
associated with this equipment.  
„ When the life cycle of this equipment is over, remove  
battery and bring to appropriate facility for lead  
reclamation. Use safety precautions when handling  
batteries that contain sulfuric acid.  
„ When the life cycle of this equipment is over, it is  
recommended that the trowel frame and all other metal  
parts be sent to a recycling center.  
Metal recycling involves the collection of metal from  
discarded products and its transformation into raw  
materials to use in manufacturing a new product.  
Recyclers and manufacturers alike promote the process  
of recycling metal. Using a metal recycling center  
promotes energy cost savings.  
eHTx44y5 RIDe-ON TROWeL • OpeRaTION maNuaL — Rev. #0 (01/16/13) — page 13  
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Figure 1. EHTX44Y5 Dimensions  
Table 1. eHTx44y5 Specifications  
96.75 (246)  
A–Length – in. (cm)  
B–Width – in. (cm)  
C–Height – in. (cm)  
50.0 (127)  
57.0 (145)  
Weight – lbs. (kgs.) Operating  
Weight – lbs. (kgs.) Shipping  
Blade Tip Speed – FPM (m/s)  
Rotor – RPM  
1,946 (882.7)  
(Less Pallet Material) 1926 (873.6)  
1,924 (9.9)  
0 to 160  
Path Width – in. (cm)  
91 (231)  
7.0 gal. (26.5 liters) Less Filter Change2  
Add .5 gal. (1.9 liters) With Filter Change2  
Hydraulic Oil Capacity  
Hydraulic Oil1  
(10W-40 Hot Weather)  
(10W-30 Cold Weather)  
1. “AW” stands for anti-wear and “MV” stands for multi-viscosity. The 68 refers to the general viscosity range and is similar to 10W-30-motor oil. It is recommended that AW MV 68  
hydraulic oil be used. If this type of hydraulic oil is not available then use 10W-30 engine oil (cold weather) or 10W-40 engine oil (hot weather).  
2. Hydraulic Oil should be above the sight glass when cold.  
page 14 — eHTx44y RIDe-ON TROWeL • OpeRaTION maNuaL — Rev. #0 (01/16/13)  
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Table 2. Noise and vibration emissions  
Guaranteed ISO 11201:2010 Based  
Sound Pressure Level at Operator Station in dB(A)a  
Guaranteed ISO 3744:2010 Based  
Sound Power Level in dB(A)b  
Whole Body Vibration Per ISO 2631-1:1997+A1:2010  
in m/s2 A(8)  
a. With an uncertainty factor K of 2.5 dB (A) included per Note 1 in section 7.2.1 of EN 12649::2008+A1:2011  
b. With an uncertainty factor K of 1.5 dB (A) included per Note 1 in section 7.2.1 of EN 12649::2008+A1:2011  
1. Sound Pressure and Power Levels are “A” weighted Measures per ISO 3744:2010. They are measured with the operating condition of the  
machine which generates the most repeatable but highest values of the sound levels. Under normal circumstances, the sound level will vary  
depending on the condition of the material being worked upon.  
2. The vibration level indicated is the vector sum of the RMS (Root Mean Square) Values of amplitudes on each axis, standardized to an 8 hour  
exposure period, and obtained using operating condition of the machine that generates the most repeatable but highest values in accordance  
with the applicable standards for the machine.  
3. Per EU Directive 2002/44/EC, the daily exposure action value for whole body vibration is 0.5 m/s2 A(8). The daily exposure limit value is  
1.15 m/s2 A(8).  
Table 3. engine Specifications  
yanmar 3TNv84T-BKSa  
Vertical inline water cooled diesel engine - direct injected - turbocharged  
Power (Maximum Output)  
Bore and Stroke  
Cooling System  
Engine Oil Capacity  
P.T.O Position  
Fuel Tank  
91.29 cu-in. (1.496 L)  
44 HP (32.8 kW/min-1)  
3.31 in. x 3.54 in. (84 mm x 90 mm)  
Water-Cooled Radiator, Water-antifreeze ratio 50/50  
7.08 US qt. (6.7 liter) dipstick upper limit  
Flywheel side  
Approx. 11 U.S. gallons (41.64 liters)  
Diesel - No. 2-D (ASTM D975)  
12V Electric Starter with Glow Plug  
341.7 lbs (155 Kg.)  
Starting System  
Dry Weight  
22.2 in. x 19.1 in. x 24.5 in  
Dimensions (L x W x H)  
(564 mm x 486 mm x 622 mm).  
eHTx44y5 RIDe-ON TROWeL • OpeRaTION maNuaL — Rev. #0 (01/16/13) — page 15  
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General infOrMatiOn  
INTeNDeD uSe  
Operate the EHTX44Y ride-on trowel, tools and components  
in accordance with the manufacturer's instructions. Use of  
any other tools for stated operation is considered contrary to  
designated use. The risk of such use lies entirely with the  
user. The manufacturer cannot be held liable for damages  
as a result of misuse.  
This trowel is equipped with a liquid cooled 44 HPYanmar  
diesel engine. Refer to the engine owner’s manual for  
specific instructions regarding engine operation. This  
manual is included with the trowel at the time of shipping.  
Please contact the Multiquip parts department if a  
replacement manual is required  
The EHTX44Y is designed for the floating and finishing of  
concrete slabs.  
The blades of the ride-on power trowel finish the concrete  
as they are swirled around the surface. Blades are classified  
as combination (10 or 8 inches wide), finish (6 inches wide).  
The EHTX44Y is equipped with five blades per rotor equally  
spaced in a radial pattern and attached to a vertical rotating  
shaft by means of a spider assembly.  
Take a walk around your trowel. Take notice of all the  
major components like the engine, blades, air cleaner,  
fuel system, fuel shut-off valve, ignition switch etc. Ensure  
engine and gearbox lubricant levels are within proper  
operating range and maintain a proper level of hydraulic  
fluid in the hydraulic fluid reservoir.  
Two independent hydrostatic drive motors are coupled to  
the engine-powered hydrostatic pump. Each motor drives  
a spider assembly  
Read all the safety instructions carefully.Safety instructions  
will be found throughout this manual and on the machine.  
Keep all safety information in good, readable condition.  
Operators should be well trained on the operation and  
maintenance of the trowel.  
Dual palm grip joystick controls located to the left and  
right of the operator are provided for steering the trowel.  
The joysticks are linked to three hydraulic steering  
cylinders located within the frame of the machine. Detailed  
explanation of how the joystick controls affect the steering  
of the trowel can be found in the Operation section of this  
Look at the operator Control Joysticks. Grasp the Control  
Joysticks and move them around a bit. Observe how  
moving the Control Joysticks cause the gearboxes and  
frame to move.  
Notice the foot pedal which controls the engine and blade