OperatiOn Manual
SerieS
MODel StxD6i
hyDraulic riDe-On trOwel
(yanMar 4tnV84t-Z-DSa2 DieSel enGine)
Revision #0 (03/23/12)
To find the latest revision of this
publication, visit our website at:
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
pn: 22778
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SilicOSiS/reSpiratOry warninGS
WARNING WARNING
SILICOSIS WARNING
RESPIRATORY HAZARDS
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
effects.
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.
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 3
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table Of cOntentS
StxD6i ride-On trowel
Proposition 65 Warning ........................................... 2
Silicosis/Respiratory Warnings................................ 3
Table Of Contents.................................................... 4
Training Checklist .................................................... 6
Daily Pre-Operation Checklist ................................. 7
Safety Information ................................................ 8-3
Lifting And Transporting......................................... 14
Specifications ........................................................ 15
Dimensions............................................................ 16
General Information............................................... 17
Components ..................................................... 18-19
Basic Engine.......................................................... 20
Inspection ......................................................... 21-22
Setup ..................................................................... 23
Operation.......................................................... 24-29
Maintenance..................................................... 30-35
Troubleshooting ................................................ 36-39
NOTICE
Specifications are subject to change without notice.
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nOteS
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traininG checkliSt
Training checklist
No.
description
Ok?
date
Read operation manual
completely
1
Machine layout, location of
components, checking of engine
and hydraulic oil levels
2
3
4
Fuel system, refueling procedure
Operation of spray and lights
Operation of controls (machine
not running)
5
Safety controls, safety stop switch
operation
6
7
8
Emergency stop procedures
Startup of machine, pre-heat,
engine choke
9
Maintaining a hover
Maneuvering
10
11
12
Pitching
Matching blade pitch. Twin-Pitch™
13
Concrete finishing techniques
14
15
16
Shutdown of machine
Lifting of machine (lift loops)
Machine transport and storage
page 6 — sTxd6i RIde-ON TROWeL• OpeRaTION maNuaL — Rev. #0 (03/23/12)
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Daily pre-OperatiOn checkliSt
daily pre-Operation checklist
1
Engine oil level
Hydraulic oil level
2
3
4
5
6
Radiator coolant level
Condition of blades
Blade pitch operation
Safety stop switch operation
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — 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.
Symbol
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
daNgeR
Indicates a hazardous situation which, if not avoided,
WILL result in deaTh or seRIOus INJuRy.
WaRNINg
Indicates a hazardous situation which, if not avoided,
cOuLd result in deaTh or seRIOus INJuRy.
Rotating parts hazards
cauTION
Indicates a hazardous situation which, if not avoided,
cOuLd result in mINOR or mOdeRaTe INJuRy.
NOTICE
Pressurized fluid hazards
Addresses practices not related to personal injury.
Hydraulic fluid hazards
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Safety infOrMatiOn
geNeRaL safeTy
NOTICE
cauTION
„ 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
emergency.
„ 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.
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 9
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Safety infOrMatiOn
TROWeL safeTy
NOTICE
„ aLWays keep the machine in proper running condition.
daNgeR
„ Fix damage to machine and replace any broken parts
immediately.
„ 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.
DANGEROUS
GAS FUMES
Order FORM PT-160
eNgINe safeTy
WaRNINg
„ NeveRoperatetheequipmentinanexplosive
atmosphereornearcombustiblematerials.An
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.
WaRNINg
„ 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
trowel.
cauTION
„ NeveR allow passengers or riders on the trowel during
operation.
cauTION
„ 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 — sTxd6i RIde-ON TROWeL• OpeRaTION maNuaL — Rev. #0 (03/23/12)
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Safety infOrMatiOn
BaTTeRy safeTy
NOTICE
„ 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.
daNgeR
„ 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
WaRNINg
daNgeR
„ 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
environmenttoavoidtheriskofadangerousconcentration
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.
cauTION
„ 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.
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 11
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Safety infOrMatiOn
TRaNspORTINg safeTy
TOWINg safeTy
cauTION
cauTION
„ NeveR allow any person or animal to
stand underneath the equipment while
lifting.
„ 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
condition.
„ NeveR lift trowel with the operator on the machine.
NOTICE
„ 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
chain.
„ NeveR hoist the trowel more than three feet off the
ground with float pans attached.
„ aLWays properly attach trailer’s safety chains to towing
vehicle.
„ Before lifting, make sure that the lift loops are not
damaged.
„ 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
wraps.
„ Use adequate lifting cable (wire or rope) of sufficient
strength.
„ 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 — sTxd6i RIde-ON TROWeL• OpeRaTION maNuaL — Rev. #0 (03/23/12)
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Safety infOrMatiOn
„ Avoid sharp turns to prevent rolling.
of recycling metal. Using a metal recycling center
promotes energy cost savings.
„ Trailer should be adjusted to a level position at all times
when towing.
emIssIONs INfORmaTION
„ Raise and lock trailer wheel stand in up position when
towing.
NOTICE
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.
„ Place chock blocks underneath wheel to prevent rolling
while parked.
„ Place support blocks underneath the trailer’s bumper to
prevent tipping while parked.
This engine has been certified to meet US EPA Evaporative
emissions requirements in the installed configuration.
„ Use the trailer’s swivel jack to adjust the trailer height to
a level position 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
condition.
eNvIRONmeNTaL safeTy/decOmmIssIONINg
NOTICE
Additionally, modifying the fuel system may adversely affect
evaporative emissions, resulting in fines or other penalties.
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.
emission control Label
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.
„ dO NOT pour waste or oil directly onto the ground, down
a drain or into any water source.
If a replacement emission label is needed, please contact
your authorized Yanmar Engine Distributor.
„ 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
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 13
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liftinG anD tranSpOrtinG
LIfTINg TheTROWeL
TRaNspORTINg TheTROWeL
When lifting trowel for moving or transporting, do the
following (see Figure 1).
After trowel has been lifted onto a flatbed truck, do the
following:
3. Attach suitable tie-down straps to the trowel. Route
tie-down straps on both sides as shown in Figure 2.
LEFT
Figure 2. Routing Tie-down Straps
4. Secure the trowel to the flatbed with the two straps,
making sure they are properly tied, to prevent
movement of the trowel during transport.
Figure 1. Lifting the Trowel
1. Secure two lifting straps to the lift loops located on the
left and right side of the trowel.
2. To lift, insert forklift forks through loops at the end of
lifting straps.
NOTICE
Ensure forklift has adequate lifting capacity for lifting
the trowel.
page 14 — sTxd6i RIde-ON TROWeL• OpeRaTION maNuaL — Rev. #0 (03/23/12)
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SpecificatiOnS
Table 1. Trowel specifications
Weight – lbs. (kgs.) Operating
Weight – lbs. (kgs.) Shipping
Sound Pressure – dBA2
Vibration – ft/s2 (m/s2)3
Blade Tip Speed – ft/min (m/s)
Fuel Tank – gallons (liters)
Rotor – RPM
2,165 (982)
(less pallet material) 2,077 (942)
TBD
TBD
1973 (10.0)
11 (42)
0 to 130
117 (297)
Path Width – in. (cm)
AW MV ISO68
(10W-40 hot weather)
(10W-30 cold weather)
Hydraulic Oil4
Table 2. engine specifications
Yanmar 4TNV84T-Z-DSA2
MODEL
Vertical 4-cycle water cooled diesel engine - direct
injected - turbocharged
Type
No. of Cylinders
Bore X Stroke
4
3.31 in. x 3.54 in.
(84 mm x 90 mm)
Displacement
Max Output
121.74 cu-in. (1.995 L)
55 HP (41 kW) @3000 RPM
Liquid cooled (Radiator)
7.08 US qt. (6.7 liter) dipstick upper limit
Flywheel End
Cooling System
Lube Oil Capacity
P.T.O Position
Starting Method
Electric Starting
Recommended Battery Capacity
12V-64 Ah (5h rating)
2.9 quarts (2.7 liters)
Alternator
Engine Coolant Capacity
Charging System
25.55 x 19.65 x 28.08 in.
(649 x 499 x 713 mm)
Dimension (L x W x H)
Net Weight (Dry)
374.79 lbs (170 Kg.)
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 15
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DiMenSiOnS
C
A
B
Figure 3. STXD6i Dimensions
Table 3. Trowel dimensions
A – Length – in. (cm)
B – Width – in. (cm)
C – Height – in. (cm)1
125 (318)
65 (165)
56 (142)
NOTES:
1. This value includes the seat height (Table 3).
2. Sound pressure is a weighted measure. Measured at the operators ear position while the ride-on trowel is operating
at full throttle on concrete in a manner most often experienced in “normal” circumstances. Sound pressure may vary
depending upon the condition of the concrete. Hearing protection is always recommended (Table 1).
3. The vibration level indicated is the maximum RMS (Root Mean Square) value obtained at the handle grip while
operating the ride-on trowel on curing concrete in a manner most often experienced in “normal” circumstances.
Values were obtained from all three axes of motion.The values shown represent the maximum RMS value from these
measurements (Table 1).
4. “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 for cold weather or 10W-40 engine oil for hot weather (Table 1).
page 16 — sTxd6i RIde-ON TROWeL• OpeRaTION maNuaL — Rev. #0 (03/23/12)
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General infOrMatiOn
INTeNded use
hydRauLIc sTeeRINg
Operate the STXD6i 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.
Dual palm grip joystick controls located to the left and
right of the operator are provided for steering the STXD6i
Ride-On Trowel.The joysticks are linked to three hydraulic
steering cylinders located within the frame of the machine.
hydRauLIc pump
The hydraulic pump delivers controlled flow of hydraulic
fluid to the hydraulic motors.
famILIaRIzaTION
The STXD6i Ride-On Power Trowel is designed for the
floating and finishing of concrete slabs.
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. Check
that there is always a proper level of oil in the engine and
a proper level of hydraulic oil in the hydraulic oil reservoir.
Read all the safety information 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.
Before using your trowel, test it on a flat, watered down
section of finished concrete.This trial test run will increase
your confidence in using the trowel and at the same time it
will familiarize you with the trowel’s controls and indicators.
In addition you will understand how the trowel will handle
under actual conditions.
eNgINe
This trowel is equipped with a Yanmar 4TNV84T diesel
engine. Refer to the engine owner’s manual for specific
instructions regarding engine operation.
BLades
The blades of the trowel finish the concrete as they are
swirled around the surface. Blades are classified as
combination (10 or 8 inches wide) and finish (6 inches
wide). This trowel is equipped with six blades per rotor
equally spaced in a radial pattern and attached to a vertical
rotating shaft by means of a spider assembly.
Independent hydrostatic drive motors are coupled to the
engine-powered hydrostatic pump. Each motor drives a
spider assembly.
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 17
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cOMpOnentS
2
1
3
16
14
4
15
7
13
17
28
27
12
5
8
20
19
11
26
21
10
25
9
24
18
6
23
22
Figure 4. Components (Front)
1. seat — Place for operator to sit.Trowel blades will not
rotate unless operator is seated. Seat is adjustable.
7. cruise control switch — Press this switch to engage
the cruise control. Press again to disengage.
2. stop Lamp (Red) — Used to relay trouble codes
information that is severe enough to warrant stopping
the trowel.
8. pitch Block — (Behind grill guard) Measure at the
service port and adjust pitch pressure at the pitch block.
9. Ignition switch — With key inserted, turn switch
clockwise to start engine.
3. Warning Lamp (amber) — Used to relay trouble code
information that is reporting a problem with the system
but the trowel need not be immediately stopped.
10. foot pedal — Controls blade speed. Slow blade
speed is accomplished by slightly depressing the foot
pedal. Maximum blade speed is accomplished by fully
depressing the foot pedal.
4. Indicators:
Oil Indicator Light — Not connected on this machine.
11. Removable steps (left and right) — Provides for
safe footing for mounting and dismounting trowel.
When removed, provides access to spider and blade
assemblies.
Water Temperature Light — Lights red when water
temperature is high.
charge Indicator — Lights red when electrical system
is not charging properly.
12. Lights — Six low voltage halogen lights are provided
with this unit.
aux 1 — Cold start lamp, indicates when cold start
sequence is enabled.
13. grab handles — Use to assist safe mounting and
dismounting trowel.
aux 2 — Filter Condition lamp Indicates when hydraulic
filter needs serviced
14. Lift Loops — Located on both the left and right sides
of the main frame. Used when the trowel must be lifted
onto a concrete slab.
cold start aid — Indicates when engine cold start aid
is enabled.
15. hour meter — Indicates number of hours machine
has been used.
5. Throttle switch — Controls the speed of the engine.
Press up to increase engine speed (high). down to
decrease engine speed (low).
16. Retardant spray control Buttons (left and right) —
When pressed allows retardant spray to flow through
the spray nozzle located at the front of the machine.
6. fuel/Water separator — Separates water, dirt and
sludge from fuel preventing engine component wear.
page 18 — sTxd6i RIde-ON TROWeL• OpeRaTION maNuaL — Rev. #0 (03/23/12)
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cOMpOnentS
39
30
29
38
31
31
32
37
36
35
34
33
Figure 5. Components (Rear)
17. pitch mode switch — Sets the mode of operation of
the blade pitch system to either auto or manual.
30. steering control (right side) — Allows the unit to
move in either a forward, reverse left or right direction.
18. fuel pump— Provides fuel flow to injection pump.
31. grill guards (left and right) — Protects operator from
moving components.Remove for maintenance access.
19. Blade pitch control (Twin pitch) — Adjusts the pitch
on both rotors simultaneously but non-synchronously.
32. documentationcanister—Storagefordocumentation
and other information regarding the trowel.
20. Blade pitch control switch (left side) — Adjusts the
left side blade pitch independently of the right side.
33. Battery — Provides +12V DC to the electrical system.
21. hydraulic Reservoir — Part of frame.Holds hydraulic
oil necessary for pump operation.
34. hydraulic Oil filler cap — Remove this cap to add
hydraulic oil.Open ONLY when system is cooled down
and all expanded oil has returned to the reservoir.
22. spray Nozzles — Spray nozzle for retardant.Two spray
nozzles are supplied with this unit.
35. hydraulic Oil sight glass — Indicates the level of the
hydraulic oil in the reservoir.
23. Overflow Bottle — (Behind grill guard.) Supplies water
or coolant to the radiator when radiator water or coolant
level is low. Fill to indicated level as shown on bottle.
36. hydraulic suction filter — Filters hydraulic fluid prior
to entering the system. (10 Micron absolute synthetic media.)
24. fuel gauge/filler cap — Indicates the amount of fuel
in the fuel tank. Remove this cap to add fuel.
37. Retardant sprayTank — Holds 5 gallons of retardant,
water, or other liquid.
25. Toolbox compartment — Storage for tools.
38. hydraulic Oil expansion Tank — Accommodates
expanding hydraulic oil as it gets hot. The oil gravity
flows back to the reservoir as it cools down, therefore
NeveR open the Hydraulic Oil Filler Cap when the
system is warm and the oil has expanded.
26. fuse Box — Contains fuses for control electronics.
27. Relays — Relays for lights and safety bypass switch.
28. Light switch — When activated, turns on six halogen
lights.Lights offer better visibility when working indoors
39. safety Bypass switch — The trowel will not move
unless an operator is sitting on the seat. The weight
of an operator activates the switch allowing the rotors
to turn.
29. steering control (left side) — Allows the unit to move
in a forward or reverse direction only.
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 19
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baSic enGine
1
16
17
7
18
16
2
15
14
3
19
4
20
12
13
11
10
5
21
6
9
8
Figure 6. Basic Engine
12. Oil dip stick — Remove to check amount and
condition of oil in crankcase.
1. air filter — Helps provide clean source of air flow to
turbocharger and engine.
13. ecO governor — Controls engine rpm.
2. muffler — Exhaust gases routed through here.
14. flywheel — Main power is taken off from flywheel end.
15. fuel filter — Removes dirt and water from the fuel.
3. fan belt — Driven by the engine crank during
operation, drives the water pump/fan as well as the
alternator.
16. Lifting eye — Two lifting eyes are provided if the
removal/installation of the engine becomes necessary.
4. cooling fan — Driven by the V-belt, the cooling fan
cools the engine by cooling water/antifreeze mixture
that circulates through the engine block and cylinder
head.
17. air Intake port — Provides air from the air cleaner to
the turbocharger unit.
5. crankshaft v-pulley — Check fan V-belt between
V-Pulley and alternator to determine proper belt
tension.
18. Turbocharger — Provides pressurized intake air to the
cylinder by means of a turbine energized by exhaust
gas that rotates the blower.
6. Water pump — Circulates coolant flow through engine.
7. Oil filler port — Remove to add fresh crankcase oil.
8. Oil drain plug — Remove plug to drain crankcase oil.
9. Injection pump — Provides equal fuel flow to injectors.
10. Oil filter — Spin-on type, filters oil for contaminants.
11. Oil pressure switch — Monitors oil level.
19. starter — Starts engine when ignition key is rotated
to the "START" position.
20. alternator — Provides current to the electrical
system and charges the battery. Driven by means of
a crankshaft/V-belt pulley system.
21. fan Belt Tension adjustment — This bolt provides
means to adjust the V-belt tension at the alternator
bracket.
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inSpectiOn
hydRauLIc OIL
NOTICE
1. Check the hydraulic oil condition through the sight glass
(Figure 8) Replace hydraulic oil if dirty or if bubbles
are present.
The following sections are intended to assist the
operator with inspection of the STXD6i Ride-OnTrowel.
It is extremely important that these sections are read
carefully before attempting to use the trowel in the field.
dO NOT use your Ride-On Trowel until these sections
are thoroughly understood.
HYDRAULIC OIL
SIGHT GLASS
WaRNINg
Failure to understand the operation of the STXD6i
Ride-OnTrowel could result in personal injury or severe
damage to the trowel.
eNgINe OIL
ENGINE OIL
FILLER CAP
Figure 8. Hydraulic Oil Sight Glass
2. Determine if the hydraulic oil is low.The hydraulic tank
has an elevated overflow bottle. dO NOT remove the
fill cap when the oil is hot or spillage will occur.
DIPSTICK
cauTION
Hydraulic oil can get hOT! aLWays allow
hydraulic oil to cool before removing fill
cap.
F
FULL
ADD OIL
ENGINE OIL
FILLER CAP
L
cauTION
Figure 7. Engine Oil Check and Fill
Removal of the fill cap when oil fills the
sight glass will cause hydraulic oil to spill.
Clean up hydraulic oil spills immediately.
1. When checking or adding oil, place the machine so
the engine is level.
2. Pull the engine oil dipstick from its holder, (Figure 7).
3. To add hydraulic oil, remove fill cap on the hydraulic
tank. Fill to overflow with hydraulic system cool. Use
Chevron AW / MV ISO 68 or equivalent.
3. Determine if engine oil is low. Oil should be between
the upper limit and lower limit (add oil) lines.
4. If oil is below the "Add Engine Oil" line add oil up
to upper limit on the dipstick. Allow enough time for
any added oil to make its way to the oil pan before
rechecking.
cauTION
dO NOT overfill the oil pan with engine oil.Always keep
the engine oil level between the upper and lower limit
lines on the dipstick.
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 21
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inSpectiOn
„ The carbon residue content must not exceed
0.01% by volume. Less than 0.1% is preferred.
fueL
1. Determine if the engine fuel is low (Figure 9).
„ The total aromatics content should not exceed 35%
by volume. Less than 30% is preferred.
„ The PAH (polycyclic aromatic hydrocarbons )
content should be below 10% by volume.
E F
„ The metal content of Na, Mg, Si, and Al should be
equal or lower than 1 mass ppm.
„ Lubricity:The wear mark of WS1.4 should be Max
0.018 in (µm) at HFRR test.
„ This trowel can use biodesel fuel. Refer to the
Yanmar Service manual for details.
Figure 9. Fuel Gauge
2. If fuel level is low, remove the fuel filler cap and fill with
ASTM D975 No1D or No. 2D diesel fuel. Handle fuel
safely. Motor fuels are highly flammable and can be
dangerous if mishandled.
cauTION
dO NOT smoke while refueling. dO NOT
attempt to refuel the ride-on trowel if the
engine is hot or running.
3. Below are additional technical fuel requirements:
„ The fuel cetane number should be equal to 45 or
higher.
„ The sulfur content must not exceed 0.5% by
volume. Less than 0.05% is preferred. For
electronically-controlled engines, it is mandatory
to use fuel that does not contain 0.1% or more
sulfur content.
cauTION
dO NOT store the Ride-On Trowel with fuel in the tank
for an extended period of time. Completely drain the
fuel system (tank, lines, etc.) if the unit is to be put into
long term storage. For shorter or intermediate periods
of time the tank should be filled to avoid condensation
that could cause contamination of the fuel.
In general, using a high sulfur fuel may possible
result in corrosion inside the cylinder. Low sulfur
(300-500 mg/kg sulfur content) or ultra low sulfur
fuel should be used.
„ Never mix kerosene, used engine oil, or residual
fuels with the diesel fuel.
„ The water and sediment in the fuel should not
exceed 0.05% by volume.
„ Keep the fuel tank and fuel-handling equipment
clean at all times.
„ Poor quality fuel can reduce engine performance
and/or cause engine damage.
„ Fuel additives are not recommended. Some fuel
additives may cause poor engine performance.
„ The ash content must not exceed 0.01% by
volume.
page 22 — sTxd6i RIde-ON TROWeL• OpeRaTION maNuaL — Rev. #0 (03/23/12)
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Setup
The purpose of this section is to assist the user in setting
up a new trowel. If your trowel is already assembled, (seat,
handles, knobs and battery), this section can be skipped.
2. To install the battery on the trowel, make sure that the
battery is well seated in the battery box (Figure 10).
NOTICE
The new trowel cannot be put into service until the
setup instructions are completed. These instructions
only need to be performed at the time of unpacking a
new trowel.
BaTTeRy seTup
cauTION
Use all safety precautions specified by the battery
manufacturer when working with the battery.See Safety
Information section of this manual for more details on
battery safety.
Figure 10. Battery Box
1. This trowel was shipped with a wet charged battery.
This battery may need to be charged for a brief period
of time as per manufacturer's instructions.
3. Connect the positive cable to the positive terminal on
the battery first, then connect the negative cable to the
negative terminal.
4. Close the plastic battery box cover and secure the
battery box.
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 23
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OperatiOn
sTaRTINg The eNgINe
NOTICE
It is recommended that the operation of the Safety Stop
Switch is checked prior to performing any troweling
operations. Doing this will verify that the switch is
working properly contributing to safe operation of the
machine.
WaRNINg
NeveR operate the trowel in a confined
area or enclosed area structure that does
not provide ample free flow of air.
3. Insert the ignition key into the ignition switch (Figure 11).
cauTION
ACC
(Unused)
OFF
ON
aLWays wear approved eye and hearing
protection before operating the ride-on
power trowel.
PREHEAT
(Unused)
START
cauTION
NeveR place hands or feet inside the guard rings while
the engine is running. aLWays shut the engine down
before performing any kind of maintenance service on
the trowel.
Figure 11. Ignition Switch and Key
4. Turn the ignition key clockwise to the ON position. Aux
1, Aux 2, Coolant Temp, Cruise, Pitch Mode Lights will
light for 10 seconds (Figure 12) and Charge Lamp will
remain lit until engine starts. Coolant fan will run for
10 seconds.
1. With one foot on the ground and the other foot placed
on the trowel’s platform, grasp the grab handles lifting
yourself onto the trowel.Then sit down in the operator’s
seat.
NOTICE
dO NOT grab hold of the joysticks to lift yourself onto
the trowel. Pulling on the joysticks repeatedly will
weaken the units. aLWays use the grab handles to
lift yourself on the trowel.
Figure 12. Indicator Lights
5. When the Aux1 light turns off, turn ignition key fully
clockwise to the sTaRT position and listen for engine
to start. Once engine has started release ignition key.
The throttle speed defaults to idle.Let the engine warm
for a few minutes.
2. This trowel is equipped with a Safety Bypass Switch.
The trowel will not move unless an operator is sitting in
the seat. While the engine can be started or continue
to run with the operator off the seat, the rotors will not
rotate. The weight of an operator activates a switch
within the seat allowing the rotors to turn.
NOTICE
WaRNINg
The throttle will default to full speed when the foot pedal
is depressed and operator presence is detected.
NeveR disable or disconnect the Safety Bypass
Switch. It is provided for the operator's safety. Injury
may result if it is disabled, disconnected or improperly
maintained.
6. Repeat this section a few times to get fully acquainted
with the engine starting procedure.
page 24 — sTxd6i RIde-ON TROWeL• OpeRaTION maNuaL — Rev. #0 (03/23/12)
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OperatiOn
2. Engine speed changes to idle when operator leaves
the seat or the foot pedal is released for more than a
set period of time.
eNgINeThROTTLe
The engine throttle has three primary speed settings: Idle,
Charge, and Operating RPM.
pump sTROke
1. Each press of the Throttle Switch (Figure 13) steps it
from idle to operating speed if operator presence is
Stroke is proportionally controlled by the foot pedal input
position via feedback from the stroke position sensor.
detected.
THROTTLE
SWITCH
safety Interlock
1. Pump is automatically de-stroked if operator presence
not detected.
2. Upon startup, the foot pedal will not control pump
stroke if the pedal is depressed unless it has been
released after start up. This prevents machine from
unintentionally moving when started.
CRUISE CONTROL
SWITCH
Figure 13. Throttle Switch
3. Pump is automatically de-stroked if error is detected
from foot pedal sensor.
2. The speed defaults to idle at startup or when no
operator presence is detected.
4. Stroke position is directly controlled by foot pedal if
error is detected from the stroke sensor.
3. The speed defaults to full speed when the foot pedal is
depressed and operator presence is detected.
cRuIse cONTROL
Battery management
Setting the Cruise Control will set and maintain a set pump
stroke position command.
Idle speed is raised automatically to prevent battery drain
when:
1. Press the cruise control switch (Figure 14) to engage
the cruise control. The cruise control switch LED
indicator lights when cruise control is engaged.
„ Hydraulic oil cooler fan is running.
„ Lights are on
THROTTLE
SWITCH
„ Battery voltage drops below preset voltage
cold start
1. Idle speed is raised automatically to expedite bringing
machine to operating temperature when:
„ Hydraulic oil is below preset temperature (Oil
forces across relief valve to raise oil temperature).
CRUISE CONTROL
SWITCH
„ Engine coolant temperature is below preset
temperature.
2. Aux 1 on indicator will light when machine is in cold
start mode.
Figure 14. Cruise Control Switch
2. Press the cruise control switch again to disengage the
cruise control.The cruise control switch LED indicator
will turn off when cruise control is disengaged.
safety Interlocks
1. Full engine throttle is allowed only when operator
presence detected.
3. The cruise control can also be disengaged by
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 25
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OperatiOn
the operator resuming control of pump stroke by
depressing the foot pedal after releasing.
sTeeRINg
Two joysticks (Figure 15 and Figure 16) located to the left
and right of the operator’s seat provide directional control for
the STXD6i Ride-On Trowel.Table 3 illustrates the various
directional positions of the joysticks and their effect on the
ride-on trowel.
safety Interlocks
1. Error is detected in either Pedal Position Sensor, or
Stroke Position Sensor.
2. Operator Presence is not detected.
3. Error Code is received from engine.
pOWeR maNagemeNT
NOTICE
All directional references with respect to the joysticks
are from the operator’s seat position.
1. Pump stroke command is scaled when engine load
reaches a threshold capacity, maintaining maximum
rotor speed and preventing engine from stalling.
FORWARD
PALM
HANDLE
2. The pedal will not be able to stroke the pump until the
engine is at full RPM.
hydRauLIc OIL cOOLeR faN cONTROL
REVERSE
The hydraulic oil cooler fan is controlled based on oil
temperature. Fan turns on and off at preset temperatures.
hydRauLIc OIL fILTeR mONITORINg
Figure 15. Left Joystick Control
Operator is alerted via Aux 2 on Engine\Machine monitor
if filter needs service when filter switch is activated and oil
is at operating temperature.
FORWARD
PALM
fauLT aLeRTINg
LEFT
HANDLE
Red stop Lamp
RIGHT
This lamp is used to relay trouble code information that
is severe enough to warrant stopping the trowel. This is
enabled via a command from engine J1939 fault code for
Red Stop Lamp or fault is detected from Foot Pedal sensor.
REVERSE
amber Warning Lamp
Figure 16. Right Joystick Control
This lamp is used to relay trouble code information that
is reporting a problem with the system but the trowel
need not be immediately stopped. This is enabled via a
command from engine J1939 fault code forWarning Lamp,
Malfunction indicator Lamp, Protect Lamp. Fault is detected
from all other machine sensors and MCU.
See Table 4 for steering and directional relationship to
joystick control movement.
page 26 — sTxd6i RIde-ON TROWeL• OpeRaTION maNuaL — Rev. #0 (03/23/12)
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OperatiOn
2. Push both the left and right joysticks forward (Figure 18).
Table 4. Joystick directional positioning
LEFT
JOYSTICK
PUSH
CONTROL
FORWARD
CONTROL JOYSTICK
RESULT
& DIRECTION
RIGHT
JOYSTICK
CONTROL
Causes only the
left side of the
Move LEFT Joystick
FORWARD
ride-on trowel to
move forward.
Causes only the
left side of the
ride-on trowel to
move backward.
Move LEFT Joystick
BACKWARD
Causes only the
right side of the
ride-on trowel to
move forward.
Move RIGHT Joystick
Figure 18. Joystick Control Forward Direction
FORWARD
3. With your right foot, slowly depress the foot pedal
halfway. Notice that the ride-on trowel begins to move
in a forward direction. Release both joystick controls
to stop forward movement then remove your right foot
from the foot pedal.
Move RIGHT Joystick
Causes only the
right side of the
ride-on trowel to
move backward.
BACWARD
Move BOTH Joysticks
Causes the ride-on trowel
to move forward in
a straight line.
FORWARD
4. Practice holding the machine in one place as you
increase blade speed. When about 75% of maximum
blade speed has been reached, the blade will be
moving at proper finishing speed.The machine may be
difficult to keep in one place.Trying to keep the ride-on
trowel stationary is a good practice for operation.
Causes the ride-on trowel
to move backard in
a straight line.
Move BOTH Joysticks
BACKWARD
Move RIGHTJoystick
Causes the ride-on trowel
to move to the right.
to the RIGHT
5. Practice maneuvering the ride-on trowel using the
information listed in Table 4. Try to practice controlled
motions as if you were finishing a slab of concrete.
Practice edging and covering a large area.
Move RIGHTJoystick
Causes the ride-on trowel
to move to the left.
to the LEFT
6. Try adjusting the pitch of the blades.This can be done
with the ride-on trowel stopped or while the trowel is
moving. Test the operation of optional equipment like
retardant spray and lights.
1. The foot pedal (Figure 17) solely controls blade
speed. The position of the foot pedal determines
the blade speed. Slow blade speed is obtained by
slightly depressing the pedal. Maximum blade speed
is obtained by fully depressing the pedal.
7. Pull both the left and right joysticks backward
(Figure 19) and repeat steps 3 through 6 while
substituting the word reverse for forward.
JOYSTICK
CONTROL
RIGHT
JOYSTICK
CONTROL
PULL
BACKWARDS
Figure 17. Blade Speed Control Foot Pedal
Figure 19. Joystick Control Reverse Direction
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 27
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OperatiOn
the unsynchronized state
BLade pITch cONTROL
NOTICE
There are two modes of operation of the blade pitch system
that can be set by the Pitch Mode Switch (Figure 20):
Moving the switches forward increases the pitch while
moving them backward decreases the pitch.
„ Smart Pitch™
„ Manual
NOTICE
The trowel blades can be pitched for various finishing
operations with the two rocker switches located on the left
control panel next to the left joystick control (Figure 20).
Momentarily depressing the Twin Pitch Switch will re-
synchronize the pitch.
maNuaL mode (pitch mode Light is Off)
PITCH MODE
SWITCH
1. When the Twin Pitch Switch is pressed (up or down),
the pitch on both rotors will be changed simultaneously
but non-synchronously.
TWIN-PITCH
SWITCH
LEFT-PITCH
SWITCH
2. When the Left Pitch Switch is pressed the pitch on the
left rotor will be changed, while the pitch on the right
rotor remains constant.
NOTICE
Figure 20. Blade Pitch Control
ImpORTaNT! To get blades absolutely flat for using
float pans, pitch them as follows:
smart pitch™ mode
When the Pitch Mode Switch is in the Smart Pitch™ position
(indicator light on), the twin-pitch and left-pitch switches
operate as follows:
Press and hold down both pitch switches until mode
light blinks before installing float pans.
1. When the Twin Pitch Switch (3-position, center off)
is pressed (up or down), the right and left hand rotor
pitch are changed and then the left hand rotor pitch is
synchronized to the right hand as follows:
paNNINg mode
When both the Twin Pitch Switch and Left Pitch Switch are
pressed in the down position and held for preset period (5s
by default), the machine will enter Panning Mode.
a. TheTwin Pitch Switch (up or down) causes the RH
Pitch (up or down) Coil and LH Pitch (up or down)
Coil and Pitch Dump Valve Coil to be actuated
changing the pitch of the blades.
1. The RH Pitch DN Coil and LH Pitch DN Coil will be
activated pulling the yokes upward against Retracted
Cylinder Stop, deactivating the pitch system, and
allowing the blades to float for panning.
b. When the operator achieves the desired pitch on
the right hand blades and releases the Twin Pitch
Switch, the LH Pitch (up or down) coil and Pitch
Dump Valve Coil are actuated until the calibrated
LH Pitch Position signal matches calibrated RH
Pitch Position signal (.010” by Default).During this
time the Pitch Mode Light will flash (.1 s on, .1 s off).
2. The Pitch Mode Light will flash (.9 s on .1 s off) when
in this mode.
3. Machine remains in this mode until either the Twin
Pitch Switch or Left Pitch Switch is activated in the
upward direction.
2. When the Left Pitch Switch (3-position, center off) is
pressed the pitch on the left rotor will be changed, while
the pitch on the right rotor remains constant.The Pitch
Mode Light will turn off, to indicate pitch function is in
page 28 — sTxd6i RIde-ON TROWeL• OpeRaTION maNuaL — Rev. #0 (03/23/12)
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OperatiOn
eNgINe shuTdOWN
1. Return the throttle switch (Figure 21) to idle and allow
the engine to idle for 5 minutes.
THROTTLE
SWITCH
CRUISE CONTROL
SWITCH
Figure 21. Engine Shutdown
NOTICE
Failure to allow the engine to idle for 5 minutes before
shutting engine OFF may lead to turbocharger damage.
2. Turn the ignition key counterclockwise to the OFF
position then remove the key.
3. Clean and remove any foreign debris from the trowel.
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 29
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Maintenance
Table 5. maintenance schedule
periodic maintenance Interval
every every every
system
check Item
daILy
every every every every
1000
1500
2000
50 hrs 100 hrs 250 hrs 500 hrs
hrs
hrs
hrs
Check Air Cleaner
X
Clean Air Cleaner Element
Replace Air Cleaner Element
Check and Refill Engine Coolant
Check and Clean Radiator Fins
X
X
X
X
X
X
1st time
2nd time
and
after
Check and Adjust Cooling Fan V-Belt
X
or yearly
which-
ever
Drain, Flush, and Refill Cooling System
With New Coolant
comes
first
engine
Check Engine Oil Level
Drain and Fill Engine Oil
X
X
2nd time
and
X
1st time
after
X
2nd time
and
X
1st time
Replace Engine Oil Filter
after
Check and Refill Fuel Tank Level
Drain Fuel Tank
X
X
X
Drain Fuel Filter/Water Separator
Check Fuel Filter/Water Separator
Clean Fuel Filter/Water Separator
Replace Fuel Filter
X
X
X
X
2nd time
and
X
1st time
Change Hydraulic Oil and Filter
after
Relube Arms, Thrust Collar, and Clutch
X
X
Remove, Clean, Reinstall, and Relube
Arms, and Thrust Collar
X
Trowel
Check and replace if necessary, arm
bushings and thrust collar bushings.
X
Check blades for excessive wear or
damage and replace as necessary.
X (if
needed)
Adjust Blade Speed
page 30 — sTxd6i RIde-ON TROWeL• OpeRaTION maNuaL — Rev. #0 (03/23/12)
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Maintenance
air cleaner service
cauTION
cauTION
Certain maintenance operations or machine
adjustments require specialized knowledge and skill.
Attempting to perform maintenance operations or
adjustments without the proper knowledge, skills or
training could result in equipment damage or injury to
personnel. If in doubt, consult your dealer.
Wear protective equipment such as
approved safety glasses or face shields
and dust masks or respirators when
cleaning air filters with compressed air.
To service the air cleaner perform the following steps. See
Figure 22 for location of parts.
aIR cLeaNeR
4. Release the latches located on either side of the air
cleaner dust pan. Remove the dust pan.
This Yanmar engine is equipped with a replaceable, high-
density paper air cleaner element.Some will have an inner
element that is used as a backup filter should the outer
element becomes damaged.
5. Remove the air cleaner element.
6. Blow low pressure air from the inside of the element
to dislodge the dust and dirt. Do not use excessive air
pressure or the element will be damaged and will need
to be replaced.
See Figure 22 for air cleaner components.
ARROW
MARK
(CASE)
7. Replace the element if it is damaged or excessively
dirty.
MAIN
ELEMENT
8. Clean the inside of the dust pan.
ARROW
MARK
(DUST PAN)
9. Reinstall the element or if equipped, the precleaner
over the paper air cleaner element.
AIR CLEANER
CASE
DUST PAN
10. Reinstall the air cleaner dust pan and secure the
latches.
NOTICE
LATCH
dO NOT run the engine with the air cleaner removed
or without an element.
EVACUATOR
VALVE
RadIaTOR/cOOLINg sysTem
Figure 22. Air Cleaner Components
cauTION
1. Check the air cleaner daily or before starting the engine.
hOT coolant can cause severe burns. dO
NOT remove cap if radiator is HOT.
2. Check for and correct heavy buildup of dirt and debris
along with loose or damaged components.
3. Replace the element if it is found to be damaged,
excessively dirty, or oily.
1. Check radiator for leaks that would indicate corrosion
or damage.
NOTICE
2. Check cooling water level daily. Top off as necessary.
Always use clean, soft water and add a long life
coolant antifreeze. Use the mixing ratios specified by
the Antifreeze manufacturer. Replace cooling water at
least once a year.
Operating the engine with loose or damaged air cleaner
components could allow unfiltered air into the engine
causing premature wear and failure.
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 31
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Maintenance
3. Check radiator hoses for fatigue or cracking. Replace
if in doubt of the integrity of the hoses.
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
Yanmar Engine Owner’s Manual.
4. Check radiator cap seal and replace as necessary.
Refer to your engine manual for additional information.
RadIaTOR cLeaNINg
The fan belt tension is proper if the fan belt bends 10 to 14
mm when depressed with the thumb as shown in Figure 24.
1. Blow off dirt and dust from fins and radiator with 28 psi
(0.19 MPa) or less of compressed air (Figure 23). Be
careful not to damage the fins with the compressed air.
2. If there a large amount of contamination on the fins, use
detergent to clean and rinse thoroughly with tap water.
cauTION
NeveR use high-pressure water or compressed air at
greater than 28 psi (193 kPa) or a wire brush to clean
the radiator fins. Radiator fins damage easily.
DEFLECTION
.
Figure 24. Fan Belt Tension
eNgINe OIL
1. When checking or adding oil, place the machine so
the engine is level.
2. Pull the engine oil dipstick from its holder.
Figure 23. Radiator Cleaning
3. Determine if engine oil is low. Oil should be between
the upper limit and lower limit (add oil) lines.
4. If oil is below the "Add Engine Oil" line add oil up
to upper limit on the dipstick. Allow enough time for
any added oil to make its way to the oil pan before
rechecking.
page 32 — sTxd6i RIde-ON TROWeL• OpeRaTION maNuaL — Rev. #0 (03/23/12)
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Maintenance
5. Clean sealing surface on engine where filter mounts.
changing engine Oil and filter
6. Coat the seal of the new oil filter with clean engine oil.
Install new filter first by hand until it contacts the engine
sealing surface. Tighten it another 3/4 turn using the
filter wrench.
Change the engine oil and filter after the first 50 hours of
use, then every 6 months or 250 hours. Refer to Table 6 for
recommended oil viscosity. Refer to Figure 25 for location
of parts.
7. Fill engine with oil until it shows between the upper and
lower limits on the dipstick. Do Not overfill.
Table 6. Recommended viscosity grades
8. Run the engine briefly for several minutes. Watch for
oil leakage. Shut the engine down and allow it to sit
for several minutes.Top off the oil to the upper limit on
the dipstick.
10W
20W
SAE 10W-30
SAE 15W-40
# 30
fueL fILTeR
1. Replace the engine fuel filter element (Figure 26) every
500 hours.
F -20
C -30
0
32 40
60
80
100
40
20
-10
10
-20
0
20
30
TEMPERATURE RANGE EXPECTED BEFORE NEXT OIL CHANGE
OIL FILLER
CAP
DIP STICK
OIL FILTER
FUEL FILTER
OIL DRAIN
PLUG
Figure 25. Engine Oil Service Components
1. Remove the oil filler cap while draining the oil to allow
the engine to drain easily.
Figure 26. Fuel Filter
2. Remove the drain plug to drain the oil.
3. After oil is sufficiently drained, securely tighten the
drain plug.
4. Using a filter wrench, turn the oil filter counterclockwise
to remove.
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 33
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Maintenance
Refer to your engine manual for specific details to perform
this operation.
eNgINeTuNe-up
At the front of this manual is a “Daily Pre-Operation
Checklist”. Make copies of this checklist and use it on a
daily basis.
fueL/WaTeR sepaRaTOR
Inspect the Fuel/Water Separator daily. If the Fuel/Water
Separator (Figure 27) has collected a significant amount of
water and sediment at the bottom of the cup, it should be
drained off.Refer to your engine manual for specific details
to perform this operation.
NOTICE
See the engine manual supplied with your machine
for appropriate engine maintenance schedule and
troubleshooting guide for problems.
ALWAYS disconnect battery cables before attempting any
service or maintenance on the ride-on trowel.
FUEL
COCK
hydRauLIc OIL fILTeR
RETAINING
RING
CUP
1. Change the hydraulic oil and filter (Figure 28) after the
first 100 hours of use then change every 250 hours.
Use 10 micron absolute synthetic media filter.
SEDIMENT
Figure 27. Fuel/ Water Separator
OIL aNd fueL LINes
1. Check the oil and fuel lines and connections regularly
for leaks or damage. Repair or replace as necessary.
HYDRAULIC
OIL FILTER
2. Replace the oil and fuel lines every two years to
maintain the line's performance and flexibility.
Figure 28. Hydraulic Oil Filter
BaTTeRy/chaRgINg sysTem
cauTION
1. Check and clean battery terminals for corrosion.
NeveR place hands near the belts or fan
while the trowel is running.
2. Never attempt to charge a battery that is frozen. The
battery can explode unless first allowed to thaw.
3. Disconnect the negative terminal ( - ) of the battery
during storage. If unit will be stored where ambient
temperature will drop to -15o C or less, remove and
store battery in a warm, dry place.
4. Checkmanufacturer'srecommendationsformaintaining
and charging battery.
page 34 — sTxd6i RIde-ON TROWeL• OpeRaTION maNuaL — Rev. #0 (03/23/12)
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Maintenance
3. Attach the blade tie-downs to the far side of the Z-Clip
brackets with tie-down knobs as shown in Figure 29.
LONg TeRm sTORage
1. Remove the battery.
4. Check to make certain that the blade edges are
secured under the Z-Clips and the tie-downs are
secured completely over the edges of the blade bar
before the machine is put back into operation.
2. Drain fuel from fuel tank.
3. Clean exterior with a cloth soaked in clean oil.
4. Store unit covered with plastic sheet in a moisture and
dust-free location out of direct sunlight.
cauTION
NeveR store the ride-on trowel with fuel in the tank for
any extended period of time. Always clean up spilled
fuel immediately.
INsTaLLINg paNs ONTO fINIsheR BLades
These round discs, sometimes referred to as "pans", attach
to the spiders arms and allow early floating on wet concrete
and easy movement from wet to dry areas. They are also
very effective in embedding large aggregates and surface
hardeners.
Refer to Figure 29 when installing pans onto finisher blades.
KNOB, TIE-DOWN
Z-CLIP PANS
TIE-DOWN, BLADE
BLADE ASSEMBLY
Z-CLIP, PAN
Figure 29. Z-Clip Finisher Pan Installation
1. Lift trowel just enough to slide pan under blades.Lower
finisher onto pan with blades adjacent to Z-Clips.
2. Rotate blades into position under Z-Clips. Ensure that
the blades are rotated in the direction of travel when
the machine is in operation or use the engine to rotate
the blades into position.
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 35
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trOubleShOOtinG
Troubleshooting (Ride-On hydraulic Trowel)
symptom
possible problem
solution
Other problems?
Consult engine manufacturer’s manual.
Check wiring. Replace as necessary.
Replace seat cushion (contains the switch).
Safety stop switch not functioning.
Loose wire connections?
Bad contacts?
Make certain blades are in good condition, not
excessively worn. Finish blades should measure no
less than 2"" (50mm) from the blade bar to the trailing
edge, combo blades should measure no less that 3.5""
(89mm). Trailing edge of blade should be straight and
parallel to the blade bar.
Blades?
Check that all blades are set at the same pitch angle
as measured at the spider. A field adjustment tool is
available for height adjustment of the trowel arms (see
Optional Equipment)..
Spider?
Check the spider assembly for bent trowel arms. If one
of the arms is even slightly bent, replace it immediately.
Bent trowel arms?
Check the trowel arm bushings for tightness. This can
be done by moving the trowel arms up and down. If
there is more than 1/8"" (3.2 mm) of travel at the tip of
the arm, the bushings should be replaced. All bushings
should be replaced at the same time.
If trowel “bounces, rolls concrete, or makes uneven
swirls in concrete”..
Trowel arm bushings?
Thrust collar?
Check the flatness of the thrust collar by rotating it on
the spider. If it varies by more than 0.02"" (0.5 mm)
replace the thrust collar.
Check the thrust collar by rocking it on the spider. If it
can tilt more than 1/16"" (1.6 mm) [as measured at the
thrust collar O.D.], replace the bushing in the thrust
collar.
Thrust collar bushing?
Thrust bearing worn?
Check the thrust bearing to see that it is spinning freely.
Replace if necessary.
Check blades for consistent pitch. Adjust per
Maintenance Section instructions if necessary.
Blade pitch?
Spider Finger Screws?
Yoke?
Adjust per procedure in Maintenance Section.
Machine has a perceptible rolling motion while
running.
Check to make sure that both fingers of the yoke press
evenly on the wear cap. Replace yoke as necessary.
NOTICE
Refer to MQ Setup/Inspection/Test Procedures Manual
for Troubleshooting Details.
page 36 — sTxd6i RIde-ON TROWeL• OpeRaTION maNuaL — Rev. #0 (03/23/12)
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trOubleShOOtinG
Troubleshooting (Ride-On hydraulic Trowel) - continued
possible problem
symptom
solution
Check all electrical connections, including the master on/
off switch and check to see if wiring is in good condition
with no shorts. Replace as necessary.
Wiring?
Lights (optional) not working.
Check to see if light bulbs are still good. Replace if
broken.
Lights?
Retardant?
Check retardant level in tank. Fill tank as required.
Check all electrical connections, including master on/off
switch connections. Replace components and wiring as
necessary.
Wiring?
Check the continuity of master on/off switch. Replace if
broken.
Retardant spray (optional) not working.
Bad switch?
If pump has a voltage present when the switch is turned
on, but does not operate and electrical connections to
the pump are good, replace the pump..
Bad spray pump?
Bad fuse?
Check fuse. Replace fuse if defective.
See section on blade speed adjustment.
Blade speed out of adjustment?
Check for wear of steering bearings and linkage
components replace if necessary.
Worn components?
Pivots?
Check to ensure free movement of hydraulic drive
motors.
Steering is unresponsive.
Check to ensure that hydraulic steering pressure is
adequate. See section on checking hydraulic steering
pressure.
Hydraulic pressure?
Operating position is uncomfortable.
Seat adjusted for operator?
Wiring?
Adjust seat with lever located on the front of the seat.
Check and repair wiring and connectors as necessary.
Replace solenoid valve.
Spool stuck in solenoid valve?
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 37
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trOubleShOOtinG
Troubleshooting (diesel engine)
possible problem
symptom
solution
Add fuel. Check entire fuel system.
Replace fuel pump.
No Fuel reaching injection pump?
Defective fuel pump?
Fuel filter clogged?
Replace fuel filter and clean tank.
Replace or repair fuel line.
Faulty fuel supply line?
Check piston, cylinder and valves. Adjust or
repair per engine repair manual.
Compression too low?
Engine will not start or start is delayed,
although engine can be turned over.
Fuel pump not working correctly?
Oil pressure too low?
Repair or replace fuel pump.
Check engine oil pressure.
Comply with cold starting instructions and
proper oil viscosity.
Low starting temperature limit exceeded?
Defective battery?
Charge or replace battery.
Check carefully for loosened fuel line
coupling, loose cap nut, etc.
Air or water mixed in fuel system?
Refill engine crankcase with correct type of
oil for winter environment.
Engine oil too thick?
At low temperatures engine will not start.
Defective battery?
Fuel filter blocked?
Fuel supply blocked?
Defective fuel pump?
Fuel tank empty?
Replace battery.
Replace fuel filter.
Check the entire fuel system.
Replace fuel pump.
Add fuel.
Engine fires but stops soon as starter is
switched off.
Fuel filter blocked?
Defective fuel pump?
Replace fuel filter.
Replace fuel pump.
Engine stops by itself during normal
operation.
Mechanical oil pressure shutdown sensor
stops the engine due to low oil?
Add oil. Replace low oil shutdown sensor if
necessary.
Fuel tank empty?
Replace fuel filter.
Fuel filter clogged?
Replace fuel filter.
Fuel tank venting is inadequate?
Ensure that tank is adequately vented.
Check threaded pipe unions tape and tighten
unions a required.
Leaks at pipe unions?
Low engine power, output and speed.
Speed control lever does not remain in
selected position?
See engine manual for corrective action.
Engine oil level too full?
Correct engine oil level.
Use No. 2-D diesel fuel only. Check the fuel
injection pump element and delivery valve
assembly and replace as necessary.
Injection pump wear?
page 38 — sTxd6i RIde-ON TROWeL• OpeRaTION maNuaL — Rev. #0 (03/23/12)
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trOubleShOOtinG
Troubleshooting (diesel engine) - continued
possible problem
symptom
solution
Clean or replace air filter.
Air filter blocked?
Low engine power output and low speed,
black exhaust smoke.
Incorrect valve clearances?
Malfunction at injector?
Adjust valves per engine specification.
See engine manual.
Drain off engine oil down to uppermark on
dipstick.
Too much oil in engine crankcase?
Entire cooling air system contaminated/
blocked?
Clean cooling air system and cooling fin
areas.
Fan belt broken or elongated?
Coolant insufficient?
Change belt or adjust belt tension.
Replenish coolant.
Engine overheats.
Radiator net or radiator fin clogged with dust? Clean net or fin carefully.
Fan, radiator, or radiator cap defective?
Thermostat defective?
Replace defective part.
Check thermostat and replace if necessary.
Replace parts.
Head gasket defective or water leakage?
Faulty engine oil pressure switch?
No or low level of engine oil?
Clogged engine oil filter
Contact your nearest MQ service center.
Check and adjust oil level as necessary.
Replace engine oil filter.
Engine oil pressure indicator stays on.
Engine coolant indicator turns on.
Battery indicator turns on.
Low engine coolant level?
Dirty radiator fins?
Add engine coolant.
Clean radiator fins.
Engine coolant leaking?
Contact your nearest MQ service center.
Adjust or replace V-belt.
V-Belt loose or damaged?
Contaminated engine coolant?
Faulty engine coolant pump?
V-belt loose or damaged?
Battery Failure?
Contact your nearest MQ service center.
Contact your nearest MQ service center.
Adjust or replace V-belt.
Check battery condition.
Faulty Alternator?
Contact your nearest MQ service center.
sTxd6i RIde-ON TROWeL • OpeRaTION maNuaL —Rev. #0 (03/23/12) — page 39
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OperatiOn Manual
HERE’S HOW TO GET HELP
PLEASE HAVE THE MODEL AND SERIAL
NUMBER ON-HAND WHEN CALLING
United StateS
Multiquip Corporate Office
MQ Parts Department
18910 Wilmington Ave.
Carson, CA 90746
Contact: [email protected]
Tel. (800) 421-1244
Fax (800) 537-3927
800-427-1244
310-537-3700
Fax: 800-672-7877
Fax: 310-637-3284
Service Department
Warranty Department
800-421-1244
310-537-3700
Fax: 310-537-4259
Fax: 310-943-2238
800-421-1244
310-537-3700
Fax: 310-943-2249
Technical Assistance
800-478-1244
mexico
United Kingdom
MQ Cipsa
Multiquip (UK) Limited Head Office
Carr. Fed. Mexico-Puebla KM 126.5
Momoxpan, Cholula, Puebla 72760 Mexico
Contact: [email protected]
Tel: (52) 222-225-9900
Unit 2, Northpoint Industrial Estate, Tel: 0161 339 2223
Fax: (52) 222-285-0420 Globe Lane,
Dukinfield, Cheshire SK16 4UJ
Contact: [email protected]
Fax: 0161 339 3226
Canada
Multiquip
4110 Industriel Boul.
Laval, Quebec, Canada H7L 6V3
Contact: [email protected]
Tel: (450) 625-2244
Tel: (877) 963-4411
Fax: (450) 625-8664
© COPYRIGHT 2012, MULTIQUIP INC.
Multiquip Inc, the MQ logo and the Whiteman 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.
Your Local Dealer is:
pn: 22776
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