Multiquip HTO-31V User Manual
OPERATION AND PARTS MANUAL
SERIES
MODEL HTN-31VTCSL5
MODEL HTO-31VTCSL5
RIDE-ON POWER TROWEL
(B &S VANGUARD GASOLINE ENGINE)
Revision #6 (07/09/07)
To find the latest revision of this
publication, visit our website at:
www.multiquip.com
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
P/N 12899
HTN/HTO-31V — PROPOSITION 65 WARNING
Engine exhaust and some of
its constituents, and some dust created
by power sanding, sawing, grinding,
drillingandotherconstructionactivities
contains chemicals known to the State
of California to cause cancer, birth
defects and other reproductive harm.
Some examples of these chemicals are:
Leadfromlead-basedpaints.
Crystallinesilicafrombricks.
Cementandothermasonryproducts.
Arsenicandchromiumfrom chemically
treatedlumber.
Your risk from these exposures varies,
dependingonhowoftenyoudothistype
of work. To reduce your exposure to
these chemicals: work in aALWAYS
well ventilated area, and work with
approved safety equipment, such as
dust masks that are specially designed
to filter out microscopic particles.
PAGE 2 — HTN 31V
HTN/HTO-31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 2
HTN/HTO-31V — SILICOSIS/RESPIRATORY HAZARDS
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.
WARNING
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.
HTN/HTO- 31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 3
HTN/HTO-31V — TABLE OF CONTENTS
MQ WHITEMAN — HTN/HTO-31V
RIDE-ON POWER TROWEL
(VANGUARD ENGINE)
California Proposition 65 Warning ............................. 2
Silicosis/Respiratory Warnings .................................. 3
Table Of Contents ..................................................... 4
Parts Ordering Procedures ....................................... 5
Training Checklist ...................................................... 6
Daily Pre-Operation Checklist ................................... 8
Safety Message Alert Symbols ............................ 9-10
Rules For Safe Operation .................................. 11-14
Dimensions/Specifications (Trowel) ........................ 15
Specifications (Engine) ........................................... 16
General Information ................................................ 17
Controls and Indicators ...................................... 18-19
Engine Components ............................................... 20
Setup ....................................................................... 21
Inspection ................................................................ 22
Operation ........................................................... 23-24
Maintenance (Engine)........................................ 25-26
Maintenance (Trowel) ........................................ 27-35
Troubleshooting (Trowel) ................................... 36-37
Troubleshooting (Engine) ................................... 38-39
Explanation Of Codes In Remarks Column ............ 40
Suggested Spare Parts ........................................... 41
COMPONENT DRAWINGS
Nameplate and Decals Assembly ...................... 42-43
Pivot Assembly .................................................. 44-45
Steering Handles Assembly ............................... 46-47
Steering Assist Control Assembly ...................... 48-49
Twin Pitch Assy. (Left/Right) ............................... 50-51
Twin Pitch and Mitre Box Assy. (Left/Right)........ 52-53
Engine Mounting Bracket Assembly .................. 54-55
Muffler Assy. S/N CC020199 and Below ............ 56-57
Muffler Assy. S/N CC020200 and Above ........... 58-59
Fuel Tank Assembly .......................................... 60-61
Clutch Assembly ................................................ 62-63
Radiator Guard/Overflow Bracket Assy. ............ 64-65
V-Belt Guard Assembly ...................................... 66-67
Engine Service Parts .......................................... 68-69
Gearbox Assembly (Left-Side) ........................... 70-73
Gearbox Assembly (Right-Side) ........................ 74-77
Drive Assembly .................................................. 78-79
5-Blade Spider Assembly (Left-Side) ................ 80-81
5-Blade Spider Assembly (Right-Side) ............. 82-83
Seat and Frame Assembly ................................. 84-85
Frame and Components Assembly ................... 86-87
Foot Pedals Assembly........................................ 88-89
Throttle Assembly .............................................. 90-91
Battery Assembly ............................................... 92-93
Spray Assembly ................................................. 94-95
Control Panel Assembly ..................................... 96-97
E-Z Mover and Lift Handle Assembly ................ 98-99
Terms and Conditions Of Sale .............................. 100
Specifications and
NOTE
HTN/HTO-31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 4
part numbers are
subject to change
without notice.
PAGE 4 — HTN 31V
PARTS ORDERING PROCEDURES
Ordering parts has never been easier!
Choose from three easy options:
Effective:
January 1
st
, 2006
Best Deal!
Order via Internet
(Dealers Only)
Order parts on-line using Multiquip’s SmartEquip website!
■
View Parts Diagrams
■
Order Parts
■
Print Specification Information
Goto www.multiquip.com and click on
Order Parts
Order via Fax
to log in and save!
(Dealers Only)
All customers are welcome to order parts via Fax.
Domestic (US) Customers dial:
1-800-6-PARTS-7 (800-672-7877)
Non-Dealer Customers:
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.
:
:
Order via Phone:
If you have an MQ Account, to obtain a
Username and Password, E-mail us at:
parts@multiquip.com.
To obtain an MQ Account, contact your
District Sales Manager for more information.
internet
Use the
on
Standard orders
and qualify for a 5% Discount
for all orders which include
complete part numbers.*
Fax
your order in and qualify for a 2% Discount
on
Standard orders
for all orders which include
complete part numbers.*
Domestic (US) Dealers Call:
1-800-427-1244
International Customers
their local Multiquip Representatives for
Parts Ordering information.
Note: Discounts Are Subject To Change
Note: Discounts Are Subject To Change
should contact
When ordering parts, please supply:
❒❒
Dealer Account Number
❒
❒❒
❒❒
❒
Dealer Name and Address
❒❒
❒❒
❒
Shipping Address (if different than billing address)
❒❒
❒❒
Return Fax Number
❒
❒❒
❒❒
Applicable Model Number
❒
❒❒
❒❒
Quantity, Part Number and Description of Each Part
❒
❒❒
All orders are treated as
NOTE
and will ship the same day if received prior
to 3PM PST.
www.multiquip.com
WE ACCEPT ALL MAJOR CREDIT CARDS!
HTN/HTO- 31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 5
❒❒
❒
Specify Preferred Method of Shipment:
❒❒
✓
UPS/Fed Ex
■
■
■ Next Day
■
Standard Orders
Priority One
Ground
Second/Third Day
✓ DHL
✓
Tr u ck
HTN/HTO-31V — TRAINING CHECKLIST
TRAINING CHECKLIST
This checklist will lists 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
operator’s.
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Operator _________________________________________ Trainee __________________________________________
COMMENTS:
PAGE 6 — HTN 31V
HTN/HTO-31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 6
NOTE PAGE
HTN/HTO- 31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 7
HTN/HTO-31V — DAILY PRE-OPERATION CHECKLIST
DAILY PRE-OPERATION CHECKLIST
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PAGE 8 — HTN 31V
HTN/HTO-31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 8
HTN/HTO-31V — SAFETY MESSAGE ALERT SYMBOLS
FOR YOUR SAFETY AND THE SAFETY OF OTHERS!
Safety precautions should be followed at all times when
operating this equipment. Failure to read, understand and
comply with the Safety Messages and Operating Instructions
could result in injury to yourself and others.
This Operation Manual has been developed
to provide instructions for the safe and efficient
operation of the Ride-On Trowel. For engine
maintenance information, please refer to the
engine manufacturer's instructions for data
relative to its safe operation.
Before using this Ride-On Trowel, ensure that the operating
individual has read, understands, and complies with all
instructions in this manual.
SAFETY MESSAGE ALERT SYMBOLS
The three (3) Safety Messages shown below will inform you
about potential hazards that could injure you or others. The
Safety Messages specifically address the level of exposure to
the operator, and are preceded by one of three words: DANGER,
WARNING, or CAUTION.
HAZARD SYMBOLS
WARNING - Lethal Exhaust Gases
Engine exhaust gases contain poisonous
carbon monoxide. This gas is colorless
and odorless, and can cause death if
inhaled. NEVER operate this equipment
in a confined area or enclosed structure
that does not provide ample free flow air.
DANGER - Explosive Fuel
Diesel Fuel is extremely flammable, and
its vapors can cause an explosion if ignited.
DO NOT start the engine near spilled fuel
or combustible fluids.
DO NOT fill the fuel tank while the engine is running or
hot. DO NOT overfill tank, since spilled fuel could ignite if
it comes into contact with hot engine parts or sparks from
the ignition system. Store fuel in approved containers, in
well-ventilated areas and away from sparks and flames.
WARNING - Burn Hazards
DANGER
You WILL be
NOT follow directions.
You CAN be KILLED or
NOT follow directions.
You CAN be
Potential hazards associated with trowel operation will be
referenced with Hazard Symbols which appear throughout this
manual, and will be referenced in conjunction with Safety
Message Alert Symbols.
KILLED
WARNING
WARNINGWARNING
WARNING
WARNINGWARNING
CAUTION
WARNINGWARNING
WARNING
WARNINGWARNING
INJURED
or
SERIOUSLY INJURED
SERIOUSLY INJURED
if you DO NOT follow directions.
if you DO
if you DO
Engine components can generate extreme
heat. To prevent burns, DO NOT touch
these areas while the engine is running or
immediately after operations. Never
operate the engine with heat shields or heat
guards removed.
CAUTION - Rotating Parts
NEVER operate equipment with covers,
or guards removed. Keep fingers, hands,
hair and clothing away from all moving
parts to prevent injury.
HTN/HTO- 31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 9
HTN/HTO-31V — SAFETY MESSAGE ALERT SYMBOLS
CAUTION - Accidental Starting
ALWAYS place the engine ON/OFF
switch in the OFF position, when
equipment is not in use.
CAUTION - Rotating Blades
ALWAYS keep hands and loose clothing
from rotating blades.
WARNING - Over Speed
NEVER tamper with the factory settings of
the engine governor or settings. Personal
injury and damage to the engine or
equipment can result if operating in speed
ranges above maximum allowable
CAUTION - Respiratory Hazard
ALWAYS wear approved
protection when required.
CAUTION - Sight and Hearing Hazards
ALWAYS wear approved eye and
hearing protection.
CAUTION - Equipment Damage Messages
Other important messages are provided throughout this
manual. Your equipment, other property, or the surrounding
environment could be damaged if you do not follow
instructions.
respiratory
PAGE 10 — HTN 31V
HTN/HTO-31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 10
HTN/HTO-31V — RULES FOR SAFE OPERATION
■
WARNING - Read this Manual
Failure to follow instructions in this manual may lead to serious
injury or even death! This equipment is to be operated by
trained and qualified personnel only! This equipment is for
industrial use only.
The following safety guidelines should always be used when
operating the Ride-On Trowel.
Replace nameplate, operation and safety decals when they
become difficult to read.
■
ALWAYS check for loosened hardware such as nuts and
bolts before starting.
■
NEVER touch the hot exhaust manifold, muffler
or cylinder. Allow these parts to cool before
servicing the equipment. Contact with
components can cause serious burns.
DANGER - Lethal Exhaust Gases
hot
SAFETY
■
DO NOT operate or service this
equipment before you read, understand,
and comply with all safety messages in
this manual. The manual must be kept
available and accessible to the operator.
■
This equipment should not be operated by persons under the
minimum statutory age limit.
■
NEVER operate this equipment without proper protective
clothing, shatterproof glasses, steel-toed boots and other
protective devices required for the job.
■
NEVER operate this equipment when not
feeling well due to fatigue, illness or taking
medicine.
■
NEVER operate the saw under the influence or drugs or
alcohol.
■
■
■
■
■
NEVER operate the equipment in any
enclosed or narrow area where free
flow of the air is restricted. If the air flow
is restricted, it will cause serious
damage to the engine and may cause
injury to people. Remember the engine
gives off
gas. When operating equipment in
confined spaces such as tunnels,
buildings or similar areas, ensure proper air flow to move
engine exhaust away from the operator.
ALWAYS refuel in a well-ventilated area, away from sparks
and open flames.
Topping-off to filler port is dangerous, as it tends to spill fuel.
NEVER use fuel as a cleaning agent.
ALWAYS use extreme caution when working with flammable
liquids. When refueling, STOP the engine. Allow the engine
to cool before adding fuel or performing service and
maintenance functions.
NEVER operate the equipment in an
explosive atmosphere where fumes
are present, or near combustible
materials. An explosion or fire could
result in severe
DEADLY
carbon monoxide
bodily harm or even
death.
■
NEVER use accessories or attachments which are not
recommended by the manufacturer for this equipment.
Damage to the equipment and/or injury to user may result.
■
Manufacturer does not assume responsibility for any accident
due to equipment modifications. Unauthorized equipment
modification will void all warranties. Any modification which
could lead to a change in the original characteristics of the
machine should be made only by the manufacturer who shall
confirm that the machine is in conformity with appropriate
safety regulations.
HTN/HTO- 31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 11
■
NEVER
Fire or explosion could result from
vapors
■
■
smoke
around or near the machine.
fuel
, or if fuel is spilled on a
NEVER run engine without air filter. Severe engine damage
may occur. Service air filter frequently to prevent carburetor
malfunction.
NEVER place your
while starting or operating this equipment.
feet
or
hot
engine.
hands
inside the guard rings
HTN/HTO-31V — RULES FOR SAFE OPERATION
WARNING - Clear Operating Area
ALWAYS make sure that the operating area is clear before
starting the engine.
■
AVOID wearing jewelry or loose fitting clothing that may snag
on the controls or moving parts as this can cause a serious
injury.
■
ALWAYS keep clear of
operating the equipment. Shut down the engine before
performing service or maintenance functions. Contact with
moving parts can cause serious injury.
■
NEVER leave the machine
running.
■
ALWAYS be sure the operator is familiar with proper safety
precautions and operations techniques before using
equipment.
■
ALWAYS keep the work area well organized.
■
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.
■
NEVER store the trowel with fuel in the tank for any extended
period of time. Always clean up spilled fuel immediately.
■
NEVER allow passengers or riders on the trowel during
operation.
■
ALWAYS observe all applicable compulsory regulations
relevant to environmental protection, especially, fuel storage,
the handling of hazardous substances, and the wearing of
protective clothing and equipment. Instruct the user as
necessary, or as the user, request this information and
training.
rotating
or
unattended
moving parts
while the engine is
while
Additional Safety Information
A handy 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
www.aem.org.
Order FORM PT-160.
Lifting the Ride-On Trowel
This ride-on trowel is very
around. Use proper heavy lifting procedures and DO NOT
attempt to lift the ride-on trowel by the guard rings.
This Ride-On Power Trowel is designed to be moved and
handled several ways.
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.
A strap or 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 2,000 pounds (1000
kg) lifting capacity and the lifting gear must be capable of lifting
at least this amount.
NEVER stand under or allow anyone else to
stand under the trowel while it is being lifted.
CAUTION - Heavy Lifting
heavy
DANGER - Lifting Trowel
and awkward to move
■
ALWAYS disconnect spark plug wires and battery cables
before attempting any service or maintenance on the ride-on
trowel
■
Reference engine manual for specific information on tuning
up your engine, checking and gaping the spark plugs, etc.
■
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.
PAGE 12 — HTN 31V
HTN/HTO-31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 12
Transporting
■
ALWAYS shutdown engine before transporting.
■
Tighten fuel tank cap securely and close fuel cock to prevent
fuel from spilling.
■
Drain fuel when transporting equipment for long distances
or over bad roads.
■
When placing the equipment on a truck-bed for transport,
always
■
If the equipment is being transported via a trailer, make sure
the trailer complies with all local and state safety
transportation laws. Refer to the following "
Precautions"
tie-down the equipment.
Towing Safety
for basic towing techniques.
HTN/HTO-31V — RULES FOR SAFE OPERATION
Towing Safety Precautions
CAUTION - Transporting
Conform to
trowel on public roads.
To reduce the possibility of an accident while transporting the
equipment on public roads, always make sure the trailer that
supports the equipment and the towing vehicle are in good
operating condition and that both units are mechanically sound.
The following list of suggestions should be used when towing
your trowel:
■
Make sure the hitch and coupling of the towing vehicle are
rated equal to or greater than the trailer "gross vehicle weight
rating" (GVWR) of 6,000 lbs.
■
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.
Safety Towing Regulations
Trailer tires should be inflated to 50 psi cold
the tire tread wear on both vehicles.
■
ALWAYS make sure the trailer is equipped with "Safety
Chains ".
■
ALWAYS attach trailer's safety chains to towing vehicle
properly.
■
ALWAYS make sure the vehicle and trailer directional,
backup, brake, and trailer lights are connected and working.
■
DO NOT exceed the recommended highway speed when
towing. Unless posted otherwise, do not exceed 45 MPH
highway, and 10 MPH off-road.
■
Use chock-blocks at each wheel when parked to prevent
trailer from rolling.
■
Use the trailer's swivel jack to adjust the trailer height to a
level position while parked.
before transporting
. Also check
Battery
The battery contains acids that can cause injury to the eyes and
skin. To avoid eye irritation,
shielding. Use well-insulated gloves when picking up the battery.
Use the following guidelines when handling the battery.
■
DO NOT drop the battery. Any impact to the battery may
cause it to explode.
■
DO NOT expose the battery to open flames,
sparks, lit cigarettes etc. The battery
contains combustible gases and liquids. If
these gases and liquids come in contact
with a flame or spark an explosion can occur.
■
ALWAYS keep the battery charged. If the
battery is not charged, a buildup of
combustible gas will occur.
■
ALWAYS keep battery cables in good working condition.
Repair or replace all worn cables.
■
ALWAYS disconnect the
performing service on the equipment.
■
Inadequate battery connections may cause poor starting
of the trowel, and create other malfunctions.
■
ALWAYS recharge the battery in a vented air environment
to avoid risk of a dangerous concentration of combustible
gases.
■
DO NOT charge battery if frozen. Battery can explode. When
frozen, warm battery to at least 61°F (16°C).
■
If the battery liquid (dilute sulfuric acid) comes in contact with
clothing or skin
plenty of water.
■
If the battery liquid (dilute sulfuric acid) comes in contact with
your
contact the nearest doctor or hospital and seek medical
attention.
always
wear safety glasses or face
negative battery terminal
, rinse skin or clothing immediately with
eyes
, rinse eyes immediately with plenty of water, then
before
■
Avoid sudden stops and starts. This can cause the trailer to
skid or jack-knife. Smooth, gradual starts and stops will
improve towing.
■
Avoid sharp turns.
■
Trailer should be adjusted to a level position at all times
when towing.
■
Raise and lock trailer wheel stand in the "UP" position when
transporting.
■
Safety towing regulations require to connect and test electric
brake operation and to secure portable power cables in cable
tray with tie wraps.
HTN/HTO- 31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 13
HTN/HTO-31V — RULES FOR SAFE OPERATION
Maintenance Safety
■
ALWAYS shut down the engine and disconnect battery before
performing service or maintenance functions. Contact with
moving parts can cause serious injury.
■
Securely support any equipment components that must be
raised.
■
NEVER lubricate components or attempt service on a running
equipment.
■
ALWAYS allow the equipment a proper amount of time to
cool before servicing.
■
Keep the trowel in proper running condition.
■
Make sure that there is no buildup of concrete, grease, oil or
debris on the machine.
■
Repair damage to the trowel immediately and always replace
broken parts.
■
Dispose of hazardous waste properly. Examples of potentially
hazardous waste are used motor oil, fuel and fuel filters.
■
DO NOT use plastic food containers to dispose of hazardous
waste.
Emergencies
■
■
■
ALWAYS know the location of
the nearest
ALWAYS know the location of the
nearest
Know the phone numbers of the nearest
ambulance, doctor
that a phone or radio is readily available at the
jobsite. If this is not possible, know the location of
the nearest phone. This information will be
invaluable in the event of an emergency.
fire extinguisher
first aid kit
.
and
.
fire department
. Ensure
■
DO NOT pour waste oil or fuel directly onto the ground, down
a drain or into any water source.
■
NEVER store equipment with fuel in the tank for any extended
period of time. Always clean up spilled fuel immediately.
PAGE 14 — HTN 31V
HTN/HTO-31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 14
HTN/HTO-31V — DIMENSIONS/SPECIFICATIONS (TROWEL)
Figure 1. HTN/HTO Dimension Specifications
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MPR–rotoR 541ot06 541ot06
)mc(.ni–htdiWhtaP )132(19 )422(88
4
liOciluardyH
NOTE:
1. This value does not include seat height. To obtain total
height (seat ) add 4 inches (10.2 cm.).
2. Sound pressure is "A" weighted . 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.
snoitacificepSseireSOTH/NTH.1elbaT
)711(0.64 )711(0.64
59 59
)5.2(0.8< )5.2(0.8<
086OSIr093101N/PnametihW 086OSIr093101N/PnametihW
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.
HTN/HTO- 31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 15
HTN/HTO-31V — SPECIFICATIONS (ENGINE)
snoitacificepSenignEV13-OTH/NTH.2elbaT
ledoM
epyTenignEenilosaG
srednilyC3
rewoPmpr0063@)Wk1.32(PH13
euqroTmumixaM mpr002
tnemecalpsiD)cc259(.ni.uc1.85
eroB)mm27(.ni9.2
ekortS)mm87(.ni1.3
yticapaCliOenignE)sret
thgieWyrD)gK3.27(.sbl951
)HxWxL(snoisnemiD
nottartS&sggirB
G059draugnaV
2@)mN1.07(.sbltf7.15
il3(.tq2.3
.ni7.91x.ni1.71x.ni6.51
)mm4.105xmm2.344xmm3.134(
PAGE 16 — HTN 31V
HTN/HTO-31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 16
HTN/HTO-31V — GENERAL INFORMATION
HTN/HTO Ride-On Trowel Familarization
The HTN/HTO series Ride-On Power Trowels are designed for
the floating and finishing of concrete slabs. These ride-on trowels
are available in non-overlapping (HTN), and overlapping (HTO)
configurations.
Take a walk around the HTN/HTO Ride-On Power Trowel. Take
note 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 oil in the engine, and gear oil in the gear box
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 HTN/
HTO Ride-On Power Trowels.
Look at the operator control levers. Grab the control levers and
move them around a bit. Look to see how moving the control
levers causes the gearboxes and frame to move.
Notice the foot pedal which controls the engine speed. Also take
a look at the main driveline of the trowel. Take note and reference
how the belts look, this is the way the belts should look when
adjusted properly.
Before using your HTN/HTO Ride-On Power 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
Gearboxes
The HTN/HTO Ride on Power Trowel consist of two separate
gearbox assemblies that are enclosed in rugged cast aluminum
gear cases. The main gear is a high quality bronze and steel
composite. The worm gear is composed of hardened steel.
Cooling fins and fans are integrated into the gearbox to provide
maximum cooling for the gearbox oil. The gearbox casing holds
50% more oil capacity than competitors, which allows more
lubrication to be provided to critical points.
Steering Assist
Dual control levers located in front of the operator's seat are
provided for steering the HTN/HTO Ride on Power Trowel. The
control levers are linked to two spring loaded cylinders.
Push the left control lever forward and pull the right control
lever backward and the trowel will rotate clockwise on
approximately a center axis. Pull the left control lever backward
and push the right control lever forward and the trowel will
rotate counterclockwise.
Constant Velocity Joints (CV-Joints)
Constant velocity joints insure the efficient transfer of power to
the drive shaft and maintains the timing of the gearboxes without
any chance of slippage.
Training
For proper training, please use the “TRAINING CHECKLIST”
located in the front of this manual. This checklist will provide an
outline for an experienced operator to provide training to a new
operator.
The HTN/HTO Ride-On Power Trowel is equipped with a liquid
cooled 31 HP Vanguard gasoline engine. Refer to the engine
owner’s manual for specific instructions regarding engine
operation. This manual is included with the ride-on trowel at the
time of shipping from Whiteman. Please contact your nearest
Multiquip Dealer for a replacement should the original manual
disappear.
Blades
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
HTN/HTO ride-on power trowels are equipped with five blades
per rotor equally spaced in a radial pattern and attached to a
vertical rotating shaft by means of a
HTN/HTO- 31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 17
spider assembly.
HTN/HTO-31V — CONTROLS AND INDICATORS
Figures 2 and 3 show the location of the controls, indicators and
general maintenance parts. Each control may perform more than
one function. The functions of each control or indicator is
described below and on the next page.
1. Seat – Place for operator to sit. Engine will not start unless
operator is seated. Seat is adjustable, fore and aft for
operator comfort.
2. Steering Control Lever (right side) -Allows the unit to
move in either a forward, reverse left or right direction.
3. Retardant Spray Control Button – When pressed allows
retardant spray to flow through the spray nozzle located
at the front of the machine.
4. Twin Pitch Control – Adjusts the blade pitch for right side
of the trowel. Turn the crank as marked on its top surface to
increase or decrease blade pitch.
5. Twin Pitch Control – Adjusts the blade pitch for left side
of the trowel. Turn the crank as marked on its top surface to
increase or decrease blade pitch.
6. Steering Control Lever (left side) -Allows the unit to move
in either a forward, reverse left or right direction.
7. Light Switch – When activated, turns on four halogen
lights. Lights offer better visibility when working indoors.
9. Oil Indicator Light - Lights red when oil pressure is low.
10. Water Indicator Light - Lights red when water
temperature is high.
11. Charge Indicator - Lights red when electrical system is
not charging properly.
12. Hour Meter - Indicates number of hours machine has
been in use or hours engine was run.
13. Choke Control Lever. - In cold weather pull this lever
forward about half way to start engine. After engine warms
push knob all the way in.
14. Fuel Gauge/Filler Cap - Indicates the amount of fuel in
the fuel tank. Remove this cap to add fuel.
15. Fuel Tank - Holds 5 gallons of unleaded gasoline.
16. Spare Belt Carrier - Contains 2 spare belts. Belts are
used on the drive pulley.
17. Left Foot Riser – Operator foot rest pedal.
18. Spray Nozzle – Spray nozzle for retardant.
19. Right 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.
8. Ignition Switch – With key inserted turn clockwise to
start engine.
20. EZ- Mover Boss – Front -side insertion point for EZ Mover.
Used when the transporting of the trowel is required.
Figure 2. HTN/HTO Controls and Indicators (Front)
PAGE 18 — HTN 31V
HTN/HTO-31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 18
HTN/HTO-31V — CONTROLS AND INDICATORS
21. Radiator/Filler Cap – Holds coolant or water necessary to
keep engine at a safe operating temperature. Remove this
cap to add water or antifreeze.
22. 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.
23. Lights – Four 12 volt halogen lights are provided with this
unit.
24. Right-Side Spider – Consists (basic) of trowel arms,
blades, wear plate, and thrust collar etc.
25. Left-Side Spider – Consists (basic) of trowel arms, blades,
wear plate, and thrust collar etc.
26. Safety Kill Switch – Shuts down engine when operator is
not sitting in seat.
27. Engine Oil Filler Cap - Remove this cap to add engine oil.
28. Overflow Bottle - Supplies coolant to the radiator when
radiator coolant level is low. Fill to indicated level as
shown on bottle.
29. Engine Air Filter – Prevents dirt and other debris from
entering the fuel system. Lift locking latch on air filter
cannister to gain access to filter element.
30. Engine Dip Stick – Indicates engine oil level. Add oil as
31. Oil Filter – Provides oil filtering for the engine.
32. Battery – Provides +12V DC power to the electrical system
33. Retardant Spray Motor – Used in conjunction with the
34. Retardant Spray Tank – Holds 5 gallons of retardant.
35. Belt Guard – Encloses V-belts used in conjunction with
36. EZ- Mover Boss – Back- side insertion point for EZ Mover.
The following section is intended as a basic guide to the ride-on
trowel operation, and is not to be considered a complete guide
to concrete finishing. It is strongly suggested that all operators
(experienced and novice) read “
the American Concrete Institute, Detroit Michigan.
required.
left spray control button.
clutch.
Used when the transporting of the trowel is required.
Slabs on Grade
” published by
Figure 3. HTN/HTO Controls and Indicators (Rear)
HTN/HTO- 31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 19
HTN/HTO-31V — ENGINE COMPONENTS
Figure 4. Engine Components
The following refer to the basic engine components for reference
(Figure 4). Refer to the manufacturer's engine manual for instructions
and details of operation and servicing. The engine shown above is
a Briggs & Stratton Vanguard gasoline engine. Operation for
other types of engines may vary somewhat.
1. Thermostat-– Regulates the temperature of the engine
coolant.
2. Oil Filler Cap – Remove to add engine oil.
3. Ignition Coil -– Regulates coolant temperature.
4. Electric Starter – Starts engine when ignition key is rotated
to the "ON" position.
5. Oil Pan – Holds a maximum of 3.2 quarts (3.0 liters) of
motor oil.
6. Alternator - Provides current to the electrical system and
charges the battery.
7. Spark Plug – Provides spark to the ignition system. Set
spark plug gap to 0.028 ~ 0.031 inch (0.6~0.7 mm). Clean
spark plug once a week.
8. Coolant Temperature Sending Unit - Device that
measures coolant temperature.
9. Governor Lever – This lever restricts engine speed (high
idle or low idle) through a speed control device linked to
the accelerator system.
10. Oil Drain – Used to drain crankcase oil. Always dispose of
used oil and oil filters in an environmentally safe manner.
DO NOT allow used oil to drain onto the ground or into a
water runoff drain.
11. Oil Filter – Prevents dirt and other debris from entering the
engine oil.
12. Oil Dip Stick – Remove to check amount and condition of
oil in crankcase.
13. Oil Pressure Sending Unit – Device that measures
engine oil pressure.
14. Carburetor – Low-emission carburetor equipped with an
idle mixture valve with a limiter which allows adjustment.
Engine components can generate extreme heat.
To prevent burns, DO NOT touch these areas
while the engine is running or immediately after
operating. NEVER operate the engine with the
muffler removed.
WARNING - Hot Engine
WARNINGWARNING
WARNING
WARNINGWARNING
PAGE 20 — HTN 31V
HTN/HTO-31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 20
HTN/HTO-31V — SETUP
Trowel Setup Instructions
The purpose of this section is to assist the user in the setting up
of a
NEW
trowel. If your trowel is already assembled (seats,
handles, knobs and battery, then this section can be skipped.
The new ride-on trowel cannot be
put into service until the setup
NOTE
Before packaging and shipping this Whiteman Ride-On Power
Trowel was run and tested at the factory. If there are problems,
please let us know.
Control Handle Assembly
The steering control handles are not attached to the trowel's two
lower handles at the time of shipment. To attach the steering
control handles to the two lower handle assemblies perform the
following:
1. Remove the bolts from the plastic bag tied to the control
towers.
2. Remove all protective wrapping and straps from the control
handles.
3. Slip the top (loose) piece into the base of the
corresponding handle, making sure to line up the holes.
4. Install the bolt through the lined up holes and tighten the
acorn nut onto the threaded end.
5. Pay close attention to any wires that may be inside the control
handles. DO NOT pinch or cut any wires during installation.
6. Inside the plastic bag of parts are two knobs for the pitch
control tower cranks. Install these two knobs onto the tower
crank levers.
Seat Assembly
The seat is not installed on the trowel for shipping purposes.
To attach the seat perform the following:
1. Remove the seat from the protective wrapping.
2. Remove the bolts on the bottom of the seat, and place seat
on the seat mounting plate, then insert the bolts through the
holes or slots on the seat mounting plate and tighten. Attach
wires to seat.
installation instructions are
completed. These pre-setup
instructions only need to be
performed at the time of unpacking
NEW
trowel.
a
NOTE
on tracks, similar to an automobile seat. This seat can be adjusted
fore and aft via the control lever under the front of the seat.
Battery Setup
This trowel was shipped with a wet charged battery. This battery
may need to be charged for a brief period of time as per the
manufacturer instructions.
Use all safety precautions specified by the battery
manufacturer when working with the battery.
Flammable, explosive gas. (produces
hydrogen gas while charging or during
operation). Keep area around battery well
ventilated and keep from any fire source.
Shock or Fire due to electric shortcircuit. Disconnect battery cables
before inspecting electrical system
and never "spark" battery terminals to
test for charge.
To install the battery on the trowel, make sure that the battery is
well seated in the battery box and the terminals are properly
connected. Close the plastic battery box cover and secure the
NOTE
There are two types of seats,
depending on what type of trowel
you have. J and B series trowels
have slots on the seat mounting
plate that allow fore and aft
adjustment of the seat. H-series
trowels have a seat that is mounted
WARNING - Battery Safety
Battery electrolyte contains corrosive,
toxic chemical. (dilute sulfuric acid).
Avoid contact with eyes and skin.
battery box.
ALWAYS be sure the battery
cables are properly connected to
the battery terminal. The RED cable
is connected to the positive terminal
of the battery, and the BLACK cable
is connected to the negative
terminal of the battery.
HTN/HTO- 31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 21
HTN/HTO-31V — INSPECTION
1. Check and clean battery terminals for corrosion.
2. Check and keep battery electrolyte between upper and
lower limits indicated on the battery. Never operate or
recharge without sufficient fluid in the battery.
3. Never attempt to charge a battery that is frozen. The battery
can explode unless first allowed to thaw.
4. Disconnect the negative terminal ( - ) of the battery during
storage. If unit will be stored where ambient temperature
will drop to -15
warm, dry place.
This section is intended to assist the operator with the initial
start-up of the HTN/HTO series Ride-On Power trowel. It is
extremely important that this section be read carefully before
attempting to use the trowel in the field.
DO NOT use your ride-on power trowel until this section is
thoroughly understood.
WARNING - Damage and Injury
WARNINGWARNING
WARNING
WARNINGWARNING
Failure to understand the operation of the HTN/HTO-31V
Ride-On Power Trowel could result in severe damage to the
trowel or personal injury.
o
C or less, remove and store battery in a
Gearbox Oil Level
Use caution when removing plugs on the gearbox, there are
two of them. Removal of the bottom most plug (Drain Plug) will
drain the oil in the gearbox.
2. The level of oil in the gearbox should just reach the bottom
of the fill plug hole. The fill hole plug is located
approximately half way up the side of the gearbox. If
needed, refill with specially formulated Whiteman gearbox
lubricant P/N 10139 or ISO 680 oil.
1. Check the gearbox oil level in both gearboxes
by removing the plug located on the side of
the gearbox. See Figure 6.
CAUTION - Gearbox Plugs
WARNINGWARNING
WARNING
WARNINGWARNING
See Figures 2 and 3 for the location of any control or indicator
referenced in this manual.
Engine Oil Level
1. Pull the engine oil dipstick from its holder.
2. Determine if engine oil is low (Figure 5), add
correct amount of engine oil to bring oil level
to a normal safe level.
Fuel
To determine if the engine fuel is low, remove the cap from the
fuel tank and visually inspect the fuel level. If fuel level is low, fill
with unleaded gasoline. Handle fuel safely. Motor fuels are highly
flammable and can be dangerous if mishandled. DO NOT smoke
while refueling. Do not attempt to refuel the ride-on trowel if the
engine is hot or running.
Figure 6. Gearbox Oil Plugs
Figure 5. Engine Oil Dipstick
PAGE 22 — HTN 31V
HTN/HTO-31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 22
HTN/HTO 31V — OPERATION
Important Information Before You Start
1. This
ride-on trowel
switch"
Remember the engine will not start unless an operator is
sitting in the operator’s seat. The weight of an operator
depresses an electrical switch which will allow the engine
to start.
. This switch is located beneath the seat assembly.
CAUTION - Kill Switch
WARNINGWARNING
WARNING
WARNINGWARNING
is equipped with a safety
"safety stop
2. Keep your foot OFF the gas pedal. If the engine is cold,
adjust the choke but in all circumstances, start the engine
at idle (without touching gas pedal).
3. Insert the
4. Turn the ignition key clockwise to the (start) position. The
oil
NEVER disable or disconnect the "safety stop switch".
It is provided for the operator's safety and injury or death
may result if it is disabled, disconnected or improperly
maintained.
2. The safety stop switch should be used to stop the engine
after every use. Doing this will verify the switch is working
properly thus providing safety for the operator. Remember
to turn the key to the “OFF” position after stopping the
machine. Not doing so will drain the battery.
3. The right foot pedal (Figure 7) controls blade and engine
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.
Figure 8. Oil and Charge Indicator Lights
5. Turn ignition key fully clockwise and listen for engine to
start. Once engine has started release ignition key.
6. If the engine fails to start in this manner, consult the engine
owner's manual supplied with the trowel.
ignition key
and charge indicator lights (Figure 8) should be on.
into the ignition switch .
7. Test the safety kill switch by standing up briefly. The switch
under the seat should cause the engine to stop. If the kill
switch fails to shut down the engine. Turn off the engine
with the key switch and fix the safety kill switch. See
Troubleshooting Chart for possible problems.
8. Repeat this section a few times to get fully acquainted with
the engine starting procedure.
Figure 7. Blade Speed Control Foot Pedal
Starting the Engine
1. With one foot on the ground and the other foot placed on
the trowel's platform, grab the frame near the seat and lift
yourself onto the trowel. Sit in the operator's seat and ensure
the control handles, foot pedal and control panel items can
be comfortably accessed.
9. Let the engine idle for 3-5 minutes. If choke is applied,
push the choke to the open position as soon as the engine
will run smoothly.
HTN/HTO- 31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 23
HTN/HTO-31V — OPERATION
Steering
Two control levers located in front of the operator’s seat
provide directional control for the trowel. Table 3 illustrates
the various directional positions of the joysticks and their
effect on the ride-on trowel.
6. Try adjusting the pitch of the blades. This can be done with
the ride-on trowel stopped or while the trowel is moving,
whatever feels comfortable. Test the operation of optional
equipment like retardant spray and lights if equipped.
7. Push both the left and right joysticks backward and repeat
steps 3 through 6 while substituting the word reverse for
forward.
All directional references with respect
NOTE
to the steering control levers are from
the
operator’s
seat position.
Table 3. Control Lever Directional Positioning
CONTROL LEVER
Move Control Lever
1. Push both the left and right control levers forward. See
Figure 9.
LEFT CONTROL LEVER
FORWARD DIRECTION
RIGHT CONTROL LEVER
Figure 9. Left and Right Control Levers
Move Control Lever
Move Control Lever
Move Control Lever
Move Control Levers
Move Control Lever
& DIRECTION
LEFT
FORWARD
LEFT
BACKWARD
RIGHT
FORWARD
RIGHT
BACWARD
BOTH
FORWARD
BOTH
BACKWARD
RESULT
Causes only the
leftsideofthe
ride-on trowel to
move forward.
Causes only the
leftsideofthe
ride-on trowel to
move backward.
Causes only the
right side of the
ride-on trowel to
move forward.
Causes only the
right side of the
ride-on trowel to
move backward.
Causes the ride-on trowel
to move forward in
a straight line.
Causes the ride-on trowel
to move backard in
a straight line.
2. With your right foot quickly depress the right foot pedal
halfway. Notice that the ride-on power trowel begins to
BOTH
to the RIGHT
Causes the ride-on trowel
to move to the right.
Move Control Levers
move in a forward direction. Return both joystick
controls to their neutral position to stop forward
movement, then remove your right foot from the right
BOTH
to the LEFT
Causes the ride-on trowel
to move to the left.
Move Control Levers
foot pedal.
3. 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
CAUTION
- Obstructions
to keep in one place. Trying to keep the ride-on trowel
stationary is a good practice for operation.
Trowel arms can be damaged by rough handling or by
striking exposed plumbing or forms while in operation.
4. Practice maneuvering the ride-on trowel using the
information listed in Table 3. Try to practice controlled
ALWAYS
look-out for objects which might cause damage
to the trowel arms.
motions as if you were finishing a slab of concrete.
Practice edging and covering a large area
HTN/HTO-31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 24
.
PAGE 24 — HTN 31V
HTN/HTO-31V — MAINTENANCE (ENGINE)
MAINTENANCE
When performing any maintenance on the trowel or engine,
follow all safety messages and rules for safe operation stated at
the beginning of this manual.
At the front of the book there is a “Daily Pre-Operation Checklist”.
Make copies of this checklist and use it on a daily basis.
Daily Maintenance
Thoroughly remove dirt and oil from the engine and control area.
Clean or replace the air filter element as necessary. Check and
retighten all fasteners as necessary.
Perfor m the engine maintenance procedures as indicated on the
preceeding pages.
WARNING
Accidental starts can cause severe injury
or death.
- Accidental Starting
ALWAYS place the ON/OFF
switch in the OFF position.
Air Filter (As Required)
Thoroughly remove dirt and oil from the engine and control area.
Clean or replace the air cleaner elements as necessary. Check
and retighten all fasteners as necessary.
1. Release the two latch clamps (Figure 10) from the air
cleaner cover, and remove the cover.
Figure 10. Air Cleaner Components
2. Remove the air filter cartridge from the cover.
3. Inspect the air filter element, replace if necessary.
4. To clean the air filter element (cartridge), blow compressed
air (not to exceed 30 psi (207 kPa, 2.1 kgf/cm
filter element from the air cleaner case side.
2
) through the
5.
NEVER!
Disconnect and ground spark plug
leads and disconnect negative
battery cable from battery before
servicing.
Maintenance Schedule
1. Check and retighten all fasteners as necessary.
fibers. If the air filter element (cartridge) is excessively dirty,
replace element.
6. Wipe dirt from the inside of the air cleaner body and cover,
using a moist cloth. Be careful not to let any dirt or debris to
enter the air chamber that leads to the carburetor.
7. Reinstall the air filter element (cartridge) back into the air
cleaner cover. Securely latch the two locking clamps on
the air cleaner cover
Daily (8-10 Hours)
1. Check the fluid levels in the engine and gearboxes, fill
as necessary. Check air filter. See section on air filter
servicing.
Weekly (30-40 Hours)
NOTE
1. Relube arms, thrust collar and steering links.
2. Replace blades if necessary.
3. Check and clean or replace the engine air filter as
necessary. (See following section on air Filter
Maintenance.)
4. Replace engine oil and filter as necessary. (See following
section on Oil and Filter.)
try to brush off dirt; brushing will force dirt into the
If trowel is used is in severe windy or
dusty areas, service air filter more
frequently to prevent damage to the
engine.
HTN/HTO- 31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 25
HTN/HTO-31V— MAINTENANCE (ENGINE)
Changing Engine Oil (200 Hours)
1. Change the engine oil after the first 50 hours of use,
then change every 6 months or 200 hours. Drain oil
while engine is warm.
2. Remove the oil filler cap (Figure 11), and fill engine
Oil And Fuel Lines
■
Check the oil and fuel lines and connections regularly for
leaks or damage. Repair or replace as necessary.
■
Replace the oil and fuel lines every two years to maintain
the line's performance and flexibility.
crankcase with recommended type oil as listed in Table 4.
Fill to the upper limit (F) of dipstick.
Fuel Filter (600 Hours)
3. Reinstall oil filler cap, start engine and run at idle for 5
minutes. Stop engine. Recheck oil level. Add oil if
necessary. DO NOT over-fill.
OIL FILLER
CAP
MOTOR
OIL
Drain fuel tank or close fuel shut-off valve before replacing
fuel filter.
1. Replace the engine fuel filter (Figure 13) every 600
hours.
2. To prevent the spillage of fuel which could cause a fire
or an explosion. Always make sure fuel hose clamps
are secured tightly and that fuel flows in the correct
ENGINE OIL
DIPSTICK
ADD ENGINE
OIL
F
L
SAFE OPERATING
ENGINE OIL LEVEL
Figure 11. Adding Engine Oil
direction as indicated by arrow.
CAUTION - Fuel Filter Replacement
WARNINGWARNING
WARNING
WARNINGWARNING
Coolant (Antifreeze/Summer Coolant/Water)
1. Briggs and Stratton recommends antifreeze/summer
coolant for use in their engines, which can be purchased
in concentrate (and mixed with 50% demineralized
water) or pre-diluted.
2. Check coolant level daily (Figure 14) and change yearly.
1. Change the engine oil filter (Figure 12) after the first 50
hours of use, then change every 6 months or 200 hours.
2. Be sure to coat the
with clean engine oil.
rubber gasket
of the new oil filter
CHECK DAILY
1. Maintain water/coolant level
2. Maintain reserve tank water/
3. Add coolant when reserve
Figure 13. Fuel Filter
CAUTION
at of radiator coils.
top
coolant level between H and
L mark. Use a mixture of
50/50 Anti-Freeze/Water.
tank is low (L). Fill to the H
mark with Anti-Freeze/Water.
Check Coolant
WATER
COOLANT
LEVEL
H
RESERVOIR
L
TANK
Figure 14. Check Coolant Level
Figure 12. Engine Oil FIlter
PAGE 26 — HTN 31V
HTN/HTO-31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 26
HTN/HTO-31V — MAINTENANCE (ENGINE/TROWEL)
Radiator/Cooling System
1. Check and clean radiator fins.
2. Check cooling water.
3. Check radiator hoses for fatigue or cracking.
4. Check radiator cap sea.
Refer to your engine manual for additional information.
Checking Drive V-Belts
WARNING - BURN HAZARDS
If adding coolant/antifreeze mix to the
radiator, DO NOT remove the radiator cap
until the unit has completely cooled. The
hot!
possibility of
coolant exists which
can cause severe burns.
Day-to-day addition of coolant is done from the reservoir
tank. When adding coolant to the radiator, DO NOT remove
the radiator cap until the unit has completely cooled. Make
sure the coolant level in the reservoir tank is always between
the "H" and the "L" markings.
In order to inspect the the drive V-belts for signs of wear or,
belt adjustment the V-belt guard cover (Figure 17) must be
removed.
CAUTION - Rotating Parts/V-Belt Safety
NEVER perform service on the trowel or
insert hands or tools into the belt area
while the engine is running.
Figure 16. Spark Plug Gap
Engine Fan Belt (Yearly)
1. Check the condition of the fan belt periodically, if worn
or damage replace immediately.
2. For long lasting V-belt life, check fan belt (Figure 15)
for correct tension. There should be between 3/8~1/2inch (10~12 mm) deflection at the center point of the Vbelt between the fan and the alternator.
3. Torque alternator bolt A to 14 ft-lbs (195 kg-cm) and
torque alternator bolt B to 45 ft-lbs (622 kg-cm).
The first indication of belt wear is reduced blade speed despite
the engine running at full speed. Visually inspect the belts
for signs of damage or excessive wear.
Always replace the belt guard after inspecting, adjusting or
replacing the belts.
Drive Belt Tension Adjustment Procedure
Belt tension is adjusted by sliding the entire engine fore and
aft on the trowel, The motor mount plate is slotted to allow
this motion.
Figure 17. V-belt Cover Removal
Figure 15. V-Belt Deflection
To adjust the belt tension, loosen the four engine mounting
bolts, slide the engine forward to tighten the belts or slide
Spark Plug (Yearly)
1. Remove and clean the spark plug (Figure 16), then adjust
the spark gap to 0.028 ~0.031 inch (0.6~0.7 mm).
HTN/HTO- 31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 27
the engine towards the rear of the machine to loosen the
belts. Make sure to tighten the engine mounting bolts after
setting the belt tension.
HTN/HTO-31V — MAINTENANCE (TROWEL)
Belt Changing Procedure
The belts need to be changed as soon as they show signs
of wear. Remember that all belts should be changed at the
same time. Do not reuse a belt under any circumstances.
Indications of excessive belt wear are fraying, squealing
when in use, belts that emit smoke or a burning rubber smell
when in use.
Under normal operating conditions, a set of belts may last
approximately six months. If you trowel is not reaching this
kind of life span for belts, there are some things to check
when you replace a set of belts.
Check to ensure that the belts are tensioned correctly. Next,
check to make sure that the lower drive pulley (Figure 18) is
aligned properly.
Your machine is equipped with a spare belt carrier (Figure 18). It
is located opposite the clutch, mounted on the fuel tank. Make
sure that there are belts in the carrier before the trowel is placed
on a slab to finish concrete.
To install new belts from the spare belt carrier, first cut off
the old belts. Next, remove the spare belt carrier by
unscrewing the two bolts that attach it to the fuel tank.
Make sure that there are belts in
NOTE
the belt carrier before the trowel is
placed on a slab to finish concrete.
The next step is to loosen the four engine mounting bolts
and slide the engine toward the rear of the trowel. Slide the
first belt over the clutch and place it on the upper drive pulley,
then pull it down and place it on the lower drive pulley. Repeat
this procedure for the second belt.
Realign the engine as described in the Belt Tension
Adjustment Procedure, and replace the belts in the spare
belt carrier.
Replacing Spare Belts
.
After the spare set of belts has been installed on the clutch
pulley, it will be necessary to replace the spare set of belts
that were in the spare belt carrier.
To replace a spare set of belts, be prepared to disassemble
driveline
the
The driveline is located directly under the spare belt carrier.
There are three bolts that need to be removed that will
disconnect the CV-joint from the gearbox coupler. Reference
Figure 18.
Once the CV-joint has been separated from the gearbox
coupler, push the CV-joint inward so that a gap exist between
the coupler and the CV-joint. Slide the replacement belts
between this gap, and place them onto the spare belt carrier.
Secure the spare belt carrier to the fuel tank.
.
Figure 18. Belt Changing Diagram
PAGE 28 — HTN 31V
HTN/HTO-31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 28
HTN/HTO-31V — MAINTENANCE (TROWEL)
■
WARNING - BURN HAZARDS
ALWAYS allow the engine to cool before
servicing. NEVER attempt any maintenance
hot!
work on a
engine.
Trowel Maintenance Schedules
Weekly (50-60 Hours)
1. Relube arms, thrust collar and clutch.
2. Replace blades if necessary.
Monthly (200-300 Hours)
1. Remove, clean, reinstall and relube the arms and thrust
collar. Adjust the blade arms.
2. Replace gearbox lubricant after the first 100 hours of
operation. Replace every 500-600 hours thereafter.
3. Check drive belt for excessive wear. (Refer to following
section on Drive Belt maintenance.)
Pitch the blades as flat as possible and look at the
adjustment bolts
the
lower wear plate
them is not making contact, some adjustment will be
necessary.
■
Is the machine wearing out blades unevenly (i.e. one blade
is completely worn out while the others look new)?
Figure 19 below illustrates a "
trowel arms
touching (0.10" max. clearance) lower wear plate. All alignment
bolts should be spaced the same distance from the lower wear
plate.
. They should all barely make contact with
on the spider. If you can see that one of
worn spider bushings or bent
". Check to see that adjustment bolt is barely
4. Remove, clean, reinstall clutch.
Yearly (2000-2500 Hours)
1. Check and replace if necessary the arm bushings, and
thrust collar bushings, shaft seals and belts.
Figure 20 below illustrates the "
plate (as shipped from the factory).
2. Check pitch control cables for wear.
3. Replace gearbox lubricant.
Trowel Arm Adjustment Procedure
The following procedure should be
followed to adjust trowel arms when
NOTE
it becomes apparent that the trowel
is finishing poorly or in need of
routine maintenance.
Start engine, and bring trowel blades up to full speed and look
for the following conditions:
■
Does the trowel have a perceived rolling or bouncing
motion when in use?
A
level
, clean area to test the trowel prior to and after is
essential. Any uneven
spots
in the floor or debris under the
■
Look at the trowel while it is running, does the guard ring
“rock up and down” relative to the ground?
trowel blades will give an incorrect perception of adjustment.
Ideally, a 5-foot by 5 foot three-quarter inch thick
flat
steel
plate should be used for testing.
Figure 19. Worn Spider Plate
correct alignment
Figure 20. Correct Spider Plate Alignment
" for a spider
To determine which blades need adjustment, place the trowel
in the test area (three-quarter inch thick plate) and look for
the following conditions:
HTN/HTO- 31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 29
HTN/HTO-31V — MAINTENANCE (TROWEL)
Spider Removal (Disassembly)
b. Loosen the jam nut and cone point square head set
1. Once it is determined that an adjustment is required,
remove the spider assembly from the gearbox shaft as
follows:
a. Locate cone point square head set screw (Figure 21)
and attached jam nut found on the side of the spider
c. If the trowel is equipped with an outer stabilizer ring
assembly.
REMOVE
TO FREE
SPIDER
ASSEMBLY
screw, and carefully lift the
upper trowel assembly
off
of the spider assembly. A slight tap with a rubber mallet
may be necessary to dislodge the spider from the main
shaft of the gearbox.
(Figure 21), remove the four bolts at the end of each
spider arm.
STABILIZER
RING
Figure 21. Spider/Gearbox Removal
Figure 22. Stabilizer Ring
d. Examine stabilizer ring for out of round or bends. If ring
is damaged, replace ring. If ring is found to be correct with
no damage, set aside.
Trowel Arm Removal
1. Each trowel arm is held in place at the spider plate by a hex
head bolt (zerk grease fitting) and a roll pin. Remove both the
hex head bolt and the roll pin (Figure 23) from the spider
plate.
2. Remove the trowel arm from the spider plate.
Figure 23. Removing Roll Pin
and Zerk Grease Fitting
PAGE 30 — HTN 31V
HTN/HTO-31V • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/09/07) — PAGE 30
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