Multiquip HHN31VTCSL5 User Manual

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Page 1

OPERATION AND PARTS MANUAL

SERIES

MODEL HHN31VTCSL5

RIDE-ON POWER TROWEL

(B & S VANGUARD DM950 GASOLINE ENGINE)

Revision #8 (05/03/12)

To ﬁnd the latest revision of this

publication, visit our website at:

www.multiquip.com

THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

PN: 20382

Page 2

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 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

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SILICOSIS/RESPIRATORY WARNINGS

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.

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 3

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TABLE OF CONTENTS

HHN31VTCSL5 Ride-On Power Trowel

Proposition 65 Warning ........................................... 2

Silicosis/Respiratory Warnings ................................ 3

Table Of Contents .................................................... 4

Parts Ordering Procedures ...................................... 5

Training Checklist .................................................... 6

Daily Pre-Operation Checklist ................................. 7

Safety Information ..............................................8-13

Speciﬁcations/Dimensions ................................ 14-15

General Information ............................................... 16

Components ..................................................... 18-19

New Machine Setup .............................................. 20

Basic Engine .......................................................... 21

Inspection .............................................................. 22

Operation .......................................................... 23-24

Maintenance ..................................................... 25-41

Maintenance (Old Style Clutch) ...................... 28-32

Maintenance (New Style Clutch) .................... 33-35

Troubleshooting ..................................................... 42

Troubleshooting ..................................................... 43

Troubleshooting ..................................................... 44

Troubleshooting ..................................................... 45

Wiring Diagram ...................................................... 46

Explanation Of Code In Remarks Column............. 48

Suggested Spare Parts ......................................... 49

NOTICE

Component Drawings

Nameplates And Decals ................................... 50-51

Pivot/Gearbox (Right Side) Assembly. .............. 52-53

Pivot/Gearbox (Left Side) Assembly. ................54-55

Gearbox Assembly. ........................................... 56-59

Control Steering (Assist) 1 Assembly. ..............60-61

Control Steering (Assist) 2 Assembly. ..............62-63

Twin Pitch Assembly. 1 (Left/Right) ................... 64-65

Twin Pitch Assembly. 2 (Left/Right) ................... 66-67

Engine Mounting & Throttle Assembly. ............. 68-69

Engine Cradle Mounting Assembly. .................. 70-71

Engine Air Cleaner/Radiator Assembly. ............ 72-73

Engine Mufﬂer Assembly. ................................. 74-75

Engine Clutch Assembly. (Old Style) ................ 76-77

Engine Clutch Assembly. (New Style) ............... 78-79

Engine Fuel Assembly. ..................................... 80-81

Drive Assembly. (Old Style) .............................. 82-83

Drive Assembly. (New Style) ............................. 84-85

Spider Assembly. (Left) ..................................... 86-87

Spider Assembly. (Right) .................................. 88-89

Stabilizer Ring Assembly. ................................ 90-91

Seat And Frame Assembly. .............................. 92-93

Frame And Components ...................................94-95

Foot Pedals Assembly. ...................................... 96-97

Throttle Foot Pedal Assembly. .......................... 98-99

Battery Assembly. ......................................... 100-101

Spray Assembly. ........................................... 102-103

Front Panel Assembly. .................................. 104-105

Top Right Panel Assembly. ........................... 106-107

E-Z Mover And Lift Handle Assembly. .......... 108-109

Speciﬁcations and part numbers are subject to change without notice.

PAGE 4 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Terms And Conditions Of Sale — Parts .............. 110

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PARTS ORDERING PROCEDURES

Ordering parts has never been easier!

If you have an MQ Account, to obtain a Username

Effective:

Choose from three easy options:

January 1st, 2006

Best Deal!

Order via Internet (Dealers Only):

Order parts on-line using Multiquip’s SmartEquip website!

■ View Parts Diagrams

■ Order Parts

■ Print Speciﬁ cation Information

Goto www.multiquip.com and click on

Order Parts

to log in and save!

Order via Fax (Dealers Only):

All customers are welcome to order parts via Fax. Domestic (US) Customers dial: 1-800-6-PARTS-7 (800-672-7877)

Order via Phone:

Non-Dealer Customers:

Contact your local Multiquip Dealer for parts or call 800-427-1244 for help in locating a dealer near you.

and Password, E-mail us at: parts@multiquip.

com.

To ob ta in an MQ Account , contac t yo ur District Sales Manager for more information.

Use the internet and qualify for a 5% Discount on Standard orders 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 should contact their local Multiquip Representatives for Parts Ordering information.

Note: Discounts Are Subject To Change

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

NOTICE

All orders are treated as Standard Orders and will

ship the same day if received prior to 3PM PST.

❒ Specify Preferred Method of Shipment: ✓ UPS/Fed Ex ✓ DHL

■ Priority One ✓ Truck

■ Ground

■ Next Day

■ Second/Third Day

www.multiquip.com

WE ACCEPT ALL MAJOR CREDIT CARDS!

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 5

Page 6

TRAINING CHECKLIST

Training Checklist

No, Description OK? Date

3 Fuel system, refueling procedure.

4 Operation of spray and lights.

7 Emergency stop procedures.

9 Maintaining a hover.

10 Maneuvering.

11 Pitching.

12 Matching blade pitch. Twin-Pitch™

Read operation manual

completely.

Machine layout, location of

components, checking of engine

oil levels.

Operation of controls (machine

not running).

Safety controls, safety stop switch

operation.

Startup of machine, pre-heat,

engine choke.

13 Concrete ﬁ nishing techniques.

14 Shutdown of machine.

15 Lifting of machine (lift loops).

16 Machine transport and storage.

PAGE 6 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

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DAILY PRE-OPERATION CHECKLIST

Daily Pre-Operation Checklist

1 Engine oil level

2 Condition of blades

3 Blade pitch operation

4 Safety stop switch operation

5 Steering control operation

     

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 7

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SAFETY INFORMATION

Do not operate or service the equipment before reading

Potential hazards associated with the operation of this

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.

SAFETY MESSAGES

The four safety messages shown below will inform you about potential hazards that could injure you or others. The safety messages speciﬁ cally address the level of exposure to the operator and are preceded by one of four words:

DANGER, WARNING, CAUTION or NOTICE.

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.

CAUTION

equipment will be referenced with hazard symbols which may appear throughout this manual in conjunction with safety messages.

Symbol Safety Hazard

Lethal exhaust gas hazards

Explosive fuel hazards

Burn hazards

Rotating parts hazards

Indicates a hazardous situation which, if not avoided, COULD result in MINOR or MODERATE INJURY.

NOTICE

Addresses practices not related to personal injury.

Pressurized fluid hazards

Hydraulic fluid hazards

PAGE 8 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

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GENERAL SAFETY

NOTICE

This equipment should only be operated by trained and

Whenever necessary, replace nameplate, operation and

accident due to equipment modiﬁ cations. Unauthorized

recommended by Multiquip for this equipment. Damage

keep

Also, know the phone numbers

ﬁ re department.

SAFETY INFORMATION

CAUTION

 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.

 Avoid wearing jewelry or loose ﬁ tting clothes that may

snag on the controls or moving parts as this can cause serious injury.

 NEVER operate this equipment when not

feeling well due to fatigue, illness or when under medication.

 NEVER operate this equipment under the

inﬂ uence of drugs or alcohol.

 ALWAYS clear the work area of any debris, tools, etc.

that would constitute a hazard while the equipment is in operation.



qualiﬁ ed personnel 18 years of age and older.



safety decals when they become difﬁ cult read.

 Manufacturer does not assume responsibility for any

equipment modiﬁ cation will void all warranties.

 NEVER use accessories or attachments that are not

to the equipment and/or injury to user may result.

 ALWAYS know the location of the nearest

ﬁ re extinguisher.

 ALWAYS know the location of the nearest

ﬁ rst aid kit.

 ALWAYS know the location of the nearest phone or

a phone on the job site.

of the nearest ambulance, doctor and This information will be invaluable in the case of an emergency.

 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.

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 9

Page 10

TROWEL SAFETY



NOTICE

keep the machine in proper running condition.

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.

Association of Equipment Manufacturers (AEM) can be

engine is hot. High pressure boiling water will gush out

SAFETY INFORMATION

DANGER

 Engine fuel exhaust gases contain poisonous carbon

monoxide. This gas is colorless and odorless, and can cause death if inhaled.

 The engine of this equipment requires an adequate free

ﬂ ow of cooling air. NEVER operate this equipment in any enclosed or narrow area where free ﬂ ow of the air is restricted. If the air ﬂ ow is restricted it will cause injury to people and property and serio u s dama g e to t he equipment or engine.

NEVER operate the equipment in an explosive atmosphere or near combustible materials. An explosion or ﬁ re could result causing severe

bodily harm or even death.

WARNING

If applicable, NEVER use your hand to ﬁ nd

hydraulic leaks. Use a piece of wood or cardboard. Hydraulic ﬂ uid injected into the skin must be treated by a knowledgable physician immediately or severe injury or death can occur.

DANGEROUS

GAS FUMES

 ALWAYS

 Fix damage to machine and replace any broken parts

immediately.

 ALWAYS

 A safety manual for operating and maintenance

personnel of concrete power trowels produced by the

obtained for a fee by ordering through their website at www.aem.org.

Order FORM PT-160

ENGINE SAFETY

WARNING

 D O NOT pl ace hands o r fi ngers inside e ngine

compartment when engine is running.

 NEVER operate the engine with heat shields or

guards removed.

 Keep ﬁ ngers, hands hair and clothing away

from all moving parts to prevent injury.

 DO NOT remove the radiator cap while the

ALWAYS keep clear of rotating or moving

parts while operating the trowel.

NEVER di sco nne ct an y emerg enc y

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

of the radiator and severely scald any persons in the general area of the trowel.

 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.

all warranties.

 DO NOT remove the engine oil drain plug while the

CAUTION

 NEVER allow passengers or riders on the trowel during

operation.

 NEVER lubricate components or attempt service on a

running machine.

 NEVER place your feet or hands inside the guard rings

while starting or operating this equipment.

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 touch the hot exhaust manifold,

mufﬂ er or cylinder. Allow these parts to cool before servicing equipment.

PAGE 10 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

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NOTICE

BATTERY SAFETY

drop the battery. There is a possibility that the

keep the battery charged. If the battery is not

charge battery if frozen. Battery can explode.

environment to avoid the risk of a dangerous concentration

NEGATIVE battery terminal

keep battery cables in good working condition.

SAFETY INFORMATION

 NEVER run engine without an air ﬁ lter or with a dirty air

ﬁ lter. Severe engine damage may occur. Service air ﬁ lter frequently to prevent engine malfunction.

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.

FUEL SAFETY

DANGER

 DO NOT start the engine near spilled fuel or combustible

ﬂ uids. Fuel is extremely ﬂ ammable and its vapors can cause an explosion if ignited.

 ALWAYS refuel in a well-ventilated area, away from

sparks and open ﬂ ames.

 ALWAYS use extreme caution when working with

ﬂ ammable liquids.

 DO NOT ﬁ ll the fuel tank while the engine is running

or hot.

DANGER

 DO NOT

battery will explode.

 DO NOT expose the battery to open ﬂ ames,

sparks, cigarettes, etc. The battery contains combustible gases and liquids. If these gases and liquids come into contact with a ﬂ ame or spark, an explosion could occur.

WARNING

 A LWAYS wear safety glasses when

handling the battery to avoid eye irritation. The battery contains acids that can cause injury to the eyes and skin.

 Use well-insulated gloves when picking up

the battery.

 ALWAYS

charged, combustible gas will build up.

 DO NOT

When frozen, warm the battery to at least 61°F (16°C).

 DO NOT overﬁ ll tank, since spilled fuel could ignite if it

comes into contact with hot engine parts or sparks from the ignition system.

 Store fuel in appropriate containers, in well-ventilated

areas and away from sparks and ﬂ ames.

 NEVER use fuel as a cleaning agent.

DO NOT smoke a round or ne ar th e

equipment. Fire or explosion could result from fuel vapors or if fuel is spilled on a hot engine.

 ALWAYS recharge the battery in a well-ventilated

of combustible gases.

 If the battery liquid (dilute sulfuric acid)

comes into contact with clothing or skin, rinse skin or clothing immediately with plenty of water.

 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

before performing service on the equipment.

 ALWAYS

Repair or replace all worn cables.

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 11

Page 12

SAFETY INFORMATION

TRANSPORTING SAFETY

TOWING SAFETY

make

Make sure the hitch and coupling of the towing vehicle

NEVER

tow a trailer with defective hitches, couplings, chains, etc.

Trailer tires should be inﬂ ated to 50 psi cold.

safety

attach trailer’s safety chains to towing

make sure the vehicle and trailer directional,

The maximum speed for highway towing is 55 MPH unless posted otherwise. Recommended off-road towing is not to

Avoid sudden stops and starts. This can cause skidding,

CAUTION

 NEVER allow any person or animal to

stand underneath the equipment while lifting.

 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.

NOTICE

 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 of 2,000 pounds (1,000 kg) lifting capacity and the lifting gear must be capable of lifting at least this amount.

 NEVER transport trowel with ﬂ oat pans attached unless

safety catches are used and are speciﬁ cally cleared for such transport by the manufacturer.

 NEVER hoist the trowel more than three feet off the

ground with ﬂ oat pans attached.

 Before lifting, make sure that the lift loops are not

damaged.

 Always make sure crane or lifting device has been

properly secured to the lift loops of the equipment.

 ALWAYS shutdown engine before transporting.

CAUTION

 Check with your local county or state safety

towing regulations, in addition to meeting

Department of Transportation (DOT) Safety Towing Regulations, before towing

your trowel.

 In order to reduce the possibility of an accident while

transporting the trowel on public roads, ALWAYS sure the trailer that supports the trowel and the towing vehicle are mechanically sound and in good operating condition.

 ALWAYS shutdown engine before transporting



are rated equal to, or greater than the trailer “gross vehicle weight rating.”

 ALWAYS inspect the hitch and coupling for wear.

 Check the tire air pressure on both towing vehicle and

trailer. Also check the tire tread wear on both vehicles.

 ALWAYS make sure the trailer is equipped with a

chain.

 ALWAYS properly

vehicle.

 ALWAYS

backup, brake and trailer lights are connected and working properly.

 DOT Requirements include the following:

 NEVER lift the equipment while the engine is running.

 Tighten fuel tank cap securely and close fuel cock to

prevent fuel from spilling.

 Use adequate lifting cable (wire or rope) of sufﬁ cient

strength.

 DO NOT lift machine to unnecessary heights.

 ALWAYS tie down equipment during transpor t by

securing the equipment with rope.

PAGE 12 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

• Connect and test electric brake operation.

• Secure portable power cables in cable tray with tie wraps.



exceed 15 MPH or less depending on type of terrain.



or jack-kniﬁ ng. Smooth, gradual starts and stops will improve towing.

 Avoid sharp turns to prevent rolling.

Page 13

 Trailer should be adjusted to a level position at all times

when towing.

 Raise and lock trailer wheel stand in up position when

towing.

SAFETY INFORMATION

 Place chock blocks underneath wheel to prevent rolling

while parked.

 Place support blocks underneath the trailer’s bumper to

prevent tipping while parked.

 Use the trailer’s swivel jack to adjust the trailer height to

a level position while parked.

ENVIRONMENTAL SAFETY

NOTICE

 Dispose of hazardous waste properly.

Examples of potentially hazardous waste are used motor oil, fuel and fuel ﬁ lters.

 DO NOT use food or plastic containers to dispose of

hazardous waste.

 DO NOT pour waste, oil or fuel directly onto the ground,

down a drain or into any water source.

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 13

Page 14

SPECIFICATIONS/DIMENSIONS

HEIGHT

LENGTH

Figure 1. HHN31VTCSL5 Dimensions

Table 1. HHN31VTCSL5 Dimensions/Speciﬁcations

Speciﬁcation Parameter HNN31V (Vanguard)

A–Length – in. (cm) 97.0 (246.4)

B–Width – in. (cm) 50.0 (127)

C–Height – in. (cm)

46.0 (117)

Weight – lbs. (kgs.) Operating 1,042 (477)

Weight – lbs. (kgs.) Shipping 1,224 (555)

Engine – H.P. 31

Fuel Tank – gallons (liters) 5 (19)

Rotor – RPM 60 to 160

Path Width – in. (cm) 91 (231)

Lubrication Oil ISO 220 GR 5EP

Gear Box Oil Capacity 144 OZ.

Fuel Consumption (Full Load) 0.54 LB/BHP-HR

Radiator Capacity 1.0 GAL.

WIDTH

PAGE 14 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 15

Table 2. Noise and Vibration Emissions

SPECIFICATIONS

Guaranteed ISO 11201:2010 Based Sound Pressure Level at Operator Station in dB(A)

Guaranteed ISO 3744:2010 Based Sound Power Level in dB(A)

Whole Body Vibration Per ISO 2631-1:1997+A1:2010

in m/s

∑A(8)

117

0.19

NOTES:

1. Sound Pressure and Power Levels are “A” weighted Measures per ISO 226:2003 (ANSI S1.4-1981). They are measured with the operating

condition of the machine which generates the most repeatable but highest values of the sound levels. Under normal circumstances, the sound

level will vary depending on the condition of the material being worked upon.

2. The vibration level indicated is the vector sum of the RMS (Root Mean Square) Values of amplitudes on each axis, standardized to an 8 hour

exposure period, and obtained using operating condition of the machine that generates the most repeatable but highest values in accordance

with the applicable standards for the machine.

3. Per EU Directive 2002/44/EC, the daily exposure action value for whole body vibration is 0.5 m/s

1.15 m/s2 ∑A(8).

∑A(8). The daily exposure limit value is

Table 3. Engine Speciﬁcations

Model Briggs & Stratton Vanguard DM950G

Type Gasoline Engine

Cylinders 3

Piston Displacement 58.1 cu.in. (952 cc)

Bore and Stroke 2.83 in.x 3.07 in. (72 mm x 78 mm)

Max. Torque 51.7 ft lbs (70.1 N·m) @ 220rpm

Engine Oil Capacity 3.5 qt. (3 liters)

Fuel Tank 5 gal.(18.9 liters)

Dry Weight 159 lbs. (72.1 Kg)

Dimensions (L x W x H)

17.09 in. x 17.44 in. x 20.54 in.

(434 mm x 443 mm x 522 mm)

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 15

Page 16

GENERAL INFORMATION

HHN RIDE-ON TROWEL FAMILIARIZATION

The HHN series Ride-On Power Trowel is designed for the ﬂoating and ﬁnishing of concrete slabs.

Take a walk around the HHN Ride-On Power Trowel. Take notice of all the major components (see Figure 2 and Figure

3) like the engine, blades, air cleaner, fuel system, fuel shutoff 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 HHN 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 HHN 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

The HHN 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 rideon trowel at the time of shipping from Whiteman. Please contact your nearest Multiquip Dealer for a replacement should the original manual disappear.

Figure 2 and Figure 3 show the location of the controls, indicators and general mainte nance parts. Each control may perform more than one function.

GEARBOXES

The HHN Ride on Power Trowel consist of two separate gearbox assemblies that are enclosed in rugged cast aluminum gear cases.

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 HHN 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. See Table 4 for a complete description on the control levers directional positioning.

CONSTANT VELOCITY JOINTS (CV-JOINTS)

Constant velocity joints insure the efﬁcient transfer of power to the drive shaft and maintain the timing of the gearboxes without any chance of slippage.

TRAINING

For training, please use the “TRAINING CHECKLIST” located in the front of this manual. This checklist is not intended to be a substitu te for proper training but will provide an outline for an experienced operator to provide training to a new operator.

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) and ﬁnish (6 inches wide). The HHN 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 spider assembly.

PAGE 16 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 17

NOTES

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 17

Page 18

COMPONENTS

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 Buttons — 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.

8. Ignition Switch — With key inserted turn clockwise to start engine.

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 the key switch is in the "ON" position.

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 a spare belt. Belt is used on the drive pulley.

17. Left Foot Riser — Operator foot rest pedal.

18. Spray Nozzles — 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.

Figure 2. HHN Components (Front)

PAGE 18 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 19

COMPONENTS

20. EZ- Mover Boss — Front -side insertion point for EZ Mover. Used when the transporting of the trowel is required.

21. Radiator/Filler Cap — Holds coolant or water necess ary to keep engine at a safe operating temperature. Remove this cap to add water or antifreeze. DO NOT revove this cap when the engine is warm.

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 required.

31. Oil Filter — Provides oil ﬁltering for the engine.

32. Battery — Provides +12V DC power to the electrical system

33. Retardant Spray Motors — Used in conjunction with the left and right spray control buttons.

34. Retardant Spray Tank — Holds 5 gallons of retardant.

35. Belt Guard — Encloses drive belt used in conjunction with clutch.

36. EZ- Mover Boss — Back- side insertion point for EZ Mover. Used when the transporting of the trowel is required.

37. Oil Sight Glass — Indicates the level of the hydraulic oil in the gear box.

RETARDANT ONLY

Figure 3. HHN Components (Rear)

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 19

Page 20

NEW MACHINE SETUP

The purpose of this section is to assist the user in setting up a NEW trowel. If the trowel is already assembled, (seats, handles, knobs and battery), this section can be skipped.

NOTICE

A new ride-on trowel cannot be put into service until the following installation instructions are completed. These instructions only need to be performed at the time of unpacking a NEW trowel.

Before packaging and shipping, this 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 lower handle assemblies, perform the following:

1. Remove the bolts from the plastic bag tied to the control towers.

SEAT ASSEMBLY

The seat is not installed on the trowel for shipping purposes. To attach the seat, perform the following:

NOTICE

H-series trowels have a seat that is mounted 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.

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.

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.

CAUTION

2. Remove all protective wrapping and straps from the control handles.

3. Slip the top (loose) control handle 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.

NOTICE

Models equipped with adjustable height handles are adjusted by placing the bolt through the set of holes that bring the handles to a height most comfortable for the operator.

5. Pay close attention to any wires that may be inside the control handles. DO NOT pinch or cut any wires during installation.

6. Remove the two knobs from the plastic bag for the pitch control tower cranks and install the knobs onto the tower crank levers.

Use all safety precautions speciﬁed by the battery manufacturer when working with the battery.

To install the battery on the trowel, make sure that the battery is well seated in the battery box. The positive cable, normally red, is associated with the "+" symbol on the battery. The negative cable, normally black, is associated with the "-" symbol on the battery. See Figure 4. Connect the positive cable to the positive terminal on the battery ﬁrst, then connect the negative cable to the negative terminal. Close the plastic battery box cover and secure the battery box.

NEGATIVE

CABLE

(BLACK)

POSITIVE

CABLE

(RED)

Figure 4. Battery Cable Orientation

PAGE 20 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 21

BASIC ENGINE

Figure 5. Engine Components

INITIAL SERVICING

The engine (Figure 5) must be checked for proper lubrication and ﬁlled with fuel prior to operation. 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.

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 Plugs (2) — Remove 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.

2. Oil Filler Cap — Remove to add engine oil.

3. Ignition Coil — Regulates coolant temperature

11. Oil Filter — Spin-on type, ﬁlters oil for contaminants.

12. Oil Dip Stick — Remove to check amount and condition of oil in crankcase.

4. Electric Starter — Starts engine when ignition key is rotated to the "ON" position.

13. Oil Pressure Sending Unit — Device that measures engine oil pressure.

5. Oil Pan — Holds a maximum of 3.5 quarts (3.3 liters) of motor oil.

14. Carburetor — Low-emission carburetor equipped with an idle mixture valve with a limiter which allows

6. Alternator — Provides charge for battery and voltage adjustment.

for the +12 VDC electrical system.

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.

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 21

Page 22

This section is intended to assist the operator with the initial

OPERATING

(OIL CHECK)

FILL PLUG

inspection of the HHN trowel. It is extremely important that this section be read carefully before attempting to use the trowel in the ﬁeld.

DO NOT use your trowel until this section is thoroughly understood.

CAUTION

Failure to understand the operation of the HHN trowel could result in severe damage to the trowel or personal injury.

See Figure 2 and Figure 3 for the location of any control or indicator referenced in this manual.

ENGINE OIL LEVEL

INSPECTION

GEAR BOX

DRAIN PLUG

SIGHT GLASS

Figure 7. Gearbox Oil Plugs/Sight Glass

FUEL

Determine if the engine fuel is low (Figure 8). If fuel level is low, remove the fuel ﬁller cap and ﬁll with appropriate engine fuel. The HHN31V uses diesel fuel.

1. Pull the engine oil dipstick from its holder.

2. Determine if engine oil is low (Figure 6), add correct amount of engine oil to bring oil level to a normal safe level. (See Table 5).

ENGINE OIL

DIPSTICK

SAFE

OIL LEVEL

ADD

ENGINE

OIL

MAX

MIN

Figure 6. Engine Oil Dipstick

GEARBOX OIL LEVEL

1. Check the gearbox oil level in both gearboxes by viewing the sight glass at the rear of the gearbox. See Figure 7.

FUEL

E F

Figure 8. Fuel Gauge

DANGER

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.

CAUTION

Never store the ride-on trowel with fuel in the tank for any extended period of time. Always clean up spilled fuel immediately.

2. The oil level of the gear box should be at the half-way point of the sight glass (Figure 7). The gear box oil capacity is 1 U.S. Gallon, (3.79 liters). If additional oil is required, unscrew the oil ﬁll plug located on top of the gearbox, and reﬁll with ISO 220 A GMA GR 5 EP oil.

PAGE 22 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 23

OPERATION

STARTING THE ENGINE

1. Place one foot on the trowel’s platform, grab ahold of

any part of the frame, lift yourself onto the trowel, then sit down in the operator’s seat.

NOTICE

The HHN31V trowel is equipped with a safety stop switch that will not allow the engine to start unless an operator is sitting in the operator’s seat. The weight of an operator depresses an electrical switch, which allows the engine to start.

WARNING

NEVER disable or disconnect the safety stop switch. It is

provided for the operator’s safety, and injury may result if it is disabled, disconnected or improperly maintained.

NOTICE

Using the safey stop switch to stop the engine after every use will verify that the switch is working properly. Remember to turn the key to the “OFF” position after stopping the machine. Not doing so may drain the battery.

5. Turn the ignition key clockwise to the (start) position. The oil, charge, and preheat indicator lights (Figure

10) should be ON.

NOTICE

OIL, CHARGE, and PREHEAT indicator lights come on when ignition switch is in the ON position, and the engine is NOT running.

OIL

Figure 10. Oil and Charge Indicator Lights

6. Turn ignition key fully clockwise and listen for engine to start. Once engine has started release ignition key.

Figure 9. Blade Speed Control Foot Pedal

2. The right foot pedal (Figure 9) 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.

3. Keep your foot OFF the pedal (right foot pedal). Start the engine at idle (without touching the foot pedal).

7. If the engine fails to start in this manner, consult the engine owner’s manual supplied with the trowel.

8. Test the safety stop switch by standing up brieﬂy. The switch under the seat should cause the engine to stop. If the switch fails to shut down the engine, turn off the engine with the key switch and ﬁx the safety stop switch. See Troubleshooting tables for possible problems.

Repeat this section a few times to get fully acquainted with the engine starting procedure.

4. Insert the ignition key into the ignition switch.

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 23

Page 24

OPERATION

STEERING

Two control levers located in front of the operator’s seat provide directional control for the HHN trowel. Table 4 illustrates the various directional positions of the joysticks and their effect on the ride-on trowel.

NOTICE

All directional references with respect to the steering control levers are from the operator’s seat position.

1. Push both the left and right control levers forward. See Figure 11.

LEFT

CONTROL

LEVER

RIGHT

CONTROL

LEVER

Figure 11. Left and Right Control Levers

2. With your right foot, quickly depress the right foot pedal halfway. Notice that the ride-on power trowel begins to 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 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 to keep in one place. Trying to keep the ride-on trowel stationary is a good practice for operation.

FORWARD

DIRECTION

4. 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.

5. 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.

6. Push both the left and right joysticks backward and repeat steps 3 through 6 while substituting the word reverse for forward.

Table 4. Control Lever Directional Positioning

Control Lever Direction Results

Left

Right

Left and Right

Move Control Lever

Forward

Move Control Lever

Backward

Move Control Lever

Forward

Move Control Lever

Backward

Move Both Control Levers

Forward

Move Both Control Levers

Backward

Move Both Control Levers

to the Right

Move Both Control Levers

to the Left

Causes the ride-on trowel to

move forward and to the right.

Causes the ride-on trowel to

move backward and to the left.

Causes the ride-on trowel to move forward and to the left.

Causes the ride-on trowel to

move backward and to the

right.

Causes the ride-on trowel to

move forward in a straight line.

Causes the ride-on trowel to move backward in a straight

line.

Causes the ride-on trowel to

move to the right.

Causes the ride-on trowel to

move to the left

CAUTION

Trowel arms can be damaged by rough handling or by striking exposed plumbing or forms while in operation. ALWAYS look-out for objects which might cause damage to the trowel arms.

PAGE 24 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 25

MAINTENANCE

When performing maintenance on the trowel or engine, follow all safety messages and rules for safe operation stated at the beginning of this manual.

See the engine manual supplied with your machine for appr o priat e engin e maint enanc e sched u le and troubleshooting guide for problems.

WARNING

Accidental starts can cause severe injury or death.

ALWAYS place the ON/OFF switch in the OFF position before performing maintenance.

Disconnect negative battery cable from battery before servicing.

ALWAYS allow the engine to cool before servicing. NEVER attempt any maintenance work on a hot (mufﬂer, radiator, etc.) trowel.

MAINTENANCE SCHEDULE

3. Replace gearbox lubricant.

4. Check and adjust blade speed.

WARNING

Cer ta in ma inte nance ope rati ons or ma c hine 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.

AIR CLEANER (DAILY)

The Vanguard engine is equipped with a replaceable, highdensity paper air cleaner element. Check the air cleaner daily or before starting the engine. Check for and correct heavy buildup of dirt and debris along with loose or damaged components (Figure 12).

AIR CLEANER

BODY

Daily (8-10 Hours)

1. Check the ﬂuid levels in the engine and gearboxes, ﬁll as necessary.

2. Check V-belt.

Weekly (30-40 Hours)

1. Relube arms, thrust collar and steering links.

2. Replace blades if necessary.

3. Check the engine air ﬁlter and change as necessary.

4. Replace engine oil and ﬁlter as necessary, see engine manual.

Monthly (100-150 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.

3. Check drive belt for excessive wear.

Yearly (500-600 Hours)

1. Check the arm bushings, thrust collar bushings, shaft seals and belts. Replace if necessary

2. Check pitch control cables for wear.

CARTRIDGE

COVER

LATCHES

(COVER CLAMPS)

Figure 12. Air Cleaner Components

1. Unlock the cover clamps and remove cover.

2. Remove cartridge from air cleaner body.

3. Clean cartridge by gently tapping the end with the handle of a screwdriver. Replace cartridge if very dirty or damaged.

4. Carefully clean out the air cleaner cover.

5. Install cartridge in body.

6. Install cover and lock cover clamps.

NOTICE

Operating the engine with loose or damaged air cleaner components could allow unﬁltered air into the engine causing premature wear and failure.

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 25

Page 26

MAINTENANCE

PRIMING

ENGINE OIL AND FILTER

1. Change the engine oil and ﬁlter after the ﬁrst 5 hours of use, then change oil every 6 months or 150 hours.

2. Remove the oil ﬁller cap (Figure 5), and ﬁll engine crankcase with recommended type oil as listed in Table

5. Fill to the upper limit of dipstick.

3. Crankcase oil capacity with oil ﬁlter replacement is

6.72 qts. (7.4 liters).

Oil Filter (300 Hours)

1. Replace the engine oil ﬁlter (Figure 13) every other oil change or 300 hours. Refer to your engine manual for speciﬁc details to perform this operation.

SEAL

PUMP

O-RING

DRAIN

PLUG

SENSOR

WIRE

FUEL

FILTER

Figure 14. Fuel Filter

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.

Figure 13. Oil Filter

2. Be sure to coat the seal of the new oil ﬁlter with clean engine oil.

Table 5. Recommended Viscosity Grades

10W-30, 10W-40, 10W-50

5W-30

-20

F C

-30

TEMPERATURE RANGE EXPECTED BEFORE NEXT OIL CHANGE

-20

32 40 60 80 100

-10

20 30 40

FUEL FILTER

Replace the engine fuel ﬁlter (Figure 14) every 800 hours. Refer to your engine manual for speciﬁc details to perform this operation.

RADIATOR/COOLING SYSTEM

WARNING

Hot coolant can cause severe burns. DO NOT remove cap if radiator is HOT.

1. Check and clean radiator ﬁns.

2. Check cooling water.

3. Check radiator hoses for fatigue or cracking.

4. Check radiator cap seal.

Refer to your engine manual for additional information.

PAGE 26 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 27

BATTERY/CHARGING SYSTEM

DANGER

Flammable, explosive gas. (produces hydrogen gas while charging or during operation). Keep area around battery well ventilated and keep from any ﬁre source.

Battery electrolyte contains corrosive, toxic chemical. (dilute sulfuric acid). Avoid contact with eyes and skin.

Sh ock or fi re due to el ectric short circuit. Disconnect battery cables before inspecting electrical system and never “spark” battery terminals to test for charge.

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.

MAINTENANCE

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° C or less, remove and store battery in a warm, dry place.

LONG TERM STORAGE

 Remove the battery.  Drain fuel from fuel tank.  Clean exterior with a cloth soaked in clean oil.  Store unit covered with plastic sheet in 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.

ENGINE TUNE-UP

See the engine manual supplied with your machine for speciﬁc information on tuning up your engine as well as appropriate maintenance schedule and troubleshooting guide for problems.

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 27

Page 28

MAINTENANCE (OLD STYLE CLUTCH)

WIDTH

NOTICE

This section is intended to aid users in the maintenance of drive assemblies with an old style Comet clutch.

CHECKING THE DRIVE BELT

The drive belt needs to be changed as soon as it begins to show signs of wear. 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 drive belt may last approximately 150 hours. If your trowel is not reaching this kind of life span for drive belt wear, check the drive belt for proper pulley alignment and spacing .

To gain access to the drive belt, remove the drive belt guard cover, then visually inspect the drive belt for signs of damage or excessive wear. If the drive belt is worn or damaged, replace the drive belt.

WARNING

DO NOT attempt to insert hands or tools into

the belt area while the engine is running and the safety guard has been removed. Keep ﬁngers, hands, hair and clothing away from all moving parts to prevent bodily injury.

WARNING

DO NOT remove the V-belt guard cover

until the mufﬂer has cooled. Allow the entire trowel to cool down before performing this procedure.

REMOVING THE DRIVE BELT

1. Remove Drive Belt Guard Cover. See Figure 16.

DRIVE

BELT

COVER

Figure 16. Drive Belt Cover

2. Squeeze the drive belt as shown in Figure 17, and pull the belt upwards. This will spread open the faces of the lower drive pulley.

DRIVE

BELT

LOWER PULLEY

Figure 17. Expanding Lower Drive Pulley

3. Insert the wooden block (Figure 17) between the moveable face and the ﬁxed face of the lower drive pulley. See Figure

20. This block will help keep the lower drive pulley faces open while installing the new drive belt.

WOOD

BLOCK

 Leave the existing drive belt intact until instructed to cut it.

 Leave the engine in place for this procedure. It is not

necessary to slide the engine to replace the drive belt.

 Have a 3/4 x 1 x 3-1/4 inch wooden block available.

LENGTH

HEIGHT

.75 IN.

Figure 15. Wooden Block for Spacer

PAGE 28 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

3.25 IN.

1.00 IN.

4. If the belt is not being reused (recommended), CUT the drive belt. Ensure all belt remnants are removed from the pulleys.

Figure 18. Wood Block

Page 29

MAINTENANCE (OLD STYLE CLUTCH)

SPARE BELT

INSTALLING DRIVE BELT (USING REPLACEMENT DRIVE BELT)

The HHN31V Ride-On Power Trowel is equipped with a replacement drive belt (spare) carrier, which is mounted on the inboard side of the fuel tank near the clutch. Make sure that there is ALWAYS a spare drive belt in the drive belt carrier before the trowel is placed on a slab to ﬁnish concrete.

In the event of a drive belt failure, the spare (replacement) drive belt can be used for quick replacement at the job site to continue trowel operation.

1. If necessary, refer to the “Removing the Drive Belt” section. Ensure all remnants of old belt have been removed from pulleys.

2. To replace the drive belt with the spare drive belt, remove the 2 bolts that secure the drive belt carrier. (Figure 19) This will allow free movement of the belt for installation. Take care with to not contaminate the relplacement belt with grease or dirt.

3. With the wood block holding the lower pulley open, place the replacement belt into the lower pulley ﬁrst. Work the belt over the upper drive pulley into the pulley groove.

4. Squeeze the belt enough to remove the wood block. With the block removed, release the tension on the belt.

5. Reinstall the spare belt carrier and the drive belt guard.

6. Replace the spare belt before the next trowel use. See “Spare Drive Belt Replacement” procedure.

HOLDER

CV-JOINT

DRIVE

BELT

Figure 19. Installing Drive Belt

LOWER

PULLEY

WOOD

BLOCK

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 29

Page 30

SPARE BELT

MAINTENANCE (OLD STYLE CLUTCH)

DRIVE

CENTRIFUGAL

SPARE DRIVE BELT REPLACEMENT

To replace a spare drive belt, be prepared to disconnect the CV-joint from the left-side gearbox. See Figure 20.

1. Place the trowel on suitable supports and observe all safety precautions.

2. Remove the three screws that secure the CV-joint to the left-side gearbox coupler.

3. Once the CV-joint has been separated from the leftside gearbox, push the CV-joint inward so that a gap exists between the gearbox and the CV-joint. Slide the spare V-belt between the gearbox coupler and the CV-joint. Avoid contaminating the replacement belt with grease or oil when sliding it between the CV-Joint and gearbox coupler.

4. Place the spare drive belt inside the drive belt carrier, and secure the spare belt carrier to the inboard side of the left gearbox.

5. Install the three screws that secure the CV-joint to the left-side gearbox coupler.

TORQUE CONVERTER

The HHN31V trowel is equipped with a Torque Converter which supplies torque to both the left and right gear boxes.

The function of the a torque converter is to automatically deliver the correct amount of torque required by the trowel under all load conditions. This enables the trowel to deliver the necessary torque for ﬂoat pan applications and the high rotor speeds required for burnishing concrete.

The torque converter is of the variable pitch pulley type, (Figure 21) connected by a drive belt.

BELT

TORQUE

CONVERTER

VARIABLE

PITCH

PULLEY

Figure 21. Torque Converter/Variable Pitch

Pulley

DRIVE PULLEY

HOLDER

LEFT

SIDE

GEARBOX

NEW

SPARE

BELT

CV-JOINT

BOLT

(REMOVE

3 PLACES)

Figure 20. Replace Spare Belt

The drive pulley uses centrifugal force (Figure 22 and Figure 23) to create a belt squeeze force transmitted at the pulley faces. This condition functions as an automatic clutch.

FORCE

FIXED FACE

VARIABLE

FORCE

BELT

SQUEEZE

FORCE

Figure 22. Torque Converter (Centrifugal Force)

PAGE 30 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 31

MAINTENANCE (OLD STYLE CLUTCH)

DRIVE

As shown in Figure 22, centrifugal force pushes the roller arms (Figure 23) against the ramp plate, forcing the moveable face toward the ﬁxed face and squeezing the belt

DISTANCE

MOVEABLE

FACE

TRAVELS

MOVEABLE

FACE

CENTRIFUGAL

FORCE

DRIVE PULLEY

LOW ENGINE RPM

DRIVE PULLEY

HIGH ENGINE RPM

LOW OUTPUT SPEED

HIGH OUTPUT SPEED

Figure 23. Pulley Interaction

MOVEABLE

DRIVEN PULLEY

FACE

The “Variable Pitch Pulleys” have one ﬁxed face, and one moveable face. The drive pulley (Figure 24) moveable face is controlled by roller weight arms and springs, which change position according to engine speed. The driven pulley moveable face is controlled by a spring and belt tension.

HOW IT WORKS

Refer to Figure 25.

A B C

NEUTRAL LOW

SPEED

Figure 25. Pulley Conditions

Condition A:

 Engine Idling

 Drive Pulley: Small

 Belt: Loose and Stationary

Condition B:

 Engine Accelerating

 Drive Pulley: Small But Increasing

DRIVE PULLEY

DRIVEN PULLEY

HIGH

SPEED

BUSHING

SPRING

ROLLER

PULLEY

ARM

WEIGHT

Figure 24. Variable Pitch Pulley

RAMP PLATE

 Driven Pulley: Large But Decreasing

 Belt: Approaching Tightness

Condition C:

 Engine At High Speed

 Drive Pulley: Large

 Driven Pulley: Small

 Belt: Tight

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 31

Page 32

MAINTENANCE (OLD STYLE CLUTCH)

CLUTCH

This clutch system provides a high pulley ratio (a low gearso to speak) to start out and a low pulley ratio ( a high gear- so to speak) for a high speed operation, with inﬁnite variation between the two.

This means that it will not be necessary to give full throttle in order to “break the blades/pans loose”. The machine can slowly be brought up to speed.

The torque sensitive pulley (Figure 26) utilizes a spring and cam bracket. Peak performance results from proper interaction between the driven pulley spring and the ramp angle of the cam bracket.

SPRING

DRIVEN

CAM

BRACKET

PULLEY

MOVEABLE

FACE

Figure 26. Pulley Spring and Cam Bracket

FIXED FACE

NOTICE

If replacement of the clutch is required, use clutch replacement kit, P/N 22581, to upgrade to Multi-Clutch system. New style drive assembly must be installed per instruction sheet, P/N 23444, included with clutch replacement kit.

Old style Comet clutch is no longer available. Multi-Clutch components are not interchangeable with the prior Hoffco Comet drive system. The Hoffco Comet CVT system must be replaced for combatibility with the new equipment.

PAGE 32 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 33

MAINTENANCE (NEW STYLE CLUTCH)

NOTICE

This section is intended to aid users in the maintenance of drive assemblies with a new style Multi-Clutch.

CHECKING THE DRIVE BELT

WARNING

DO NOT attempt to insert hands or tools into

the belt area while the engine is running and the safety guard has been removed. Keep ﬁngers, hands, hair and clothing away from all moving parts to prevent bodily injury.

BELT MEASUREMENT

Long life can be expected with this new drive assembly as long as the belt is kept properly aligned.

The clutch will not shift correctly if the belt width is below

1.14". Measure the CVT belt every 100 hours of use to make sure it is within the speciﬁed tolerance. See Figure 27.

CVT BELT

CALIPERS

Figure 27. Belt Measurement

WARNING

DO NOT remove the V-belt guard cover

until the mufﬂer has cooled. Allow the entire trowel to cool down before performing this procedure.

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 33

Page 34

MAINTENANCE (NEW STYLE CLUTCH)

REMOVING THE DRIVE BELT

1. Remove Drive Belt Cover. See Figure 16.

2. Disconnect the left-side CV Axle from the left-side gearbox and the lower drive pulley coupler. See Figure 28.

NOTICE

CVT BELT

(P/N 23365)

Note that the 3 bolts securing the CV axle to the coupler are shorter than those securing the CV axle to the gearbox. Remember bolt orientation for reassembly.

UPPER DRIVE

PULLEY/CLUTCH

CVT

BELT

LEFT-SIDE GEARBOX

SHORTER

SCREWS (3)

GEARBOX COUPLER

CV AXLE

COUPLER

LOWER

DRIVE

PULLEY

Figure 28. Remove Left-Side CV Axle

3. If the belt is not being reused (recommended), CUT the drive belt. Ensure all belt remnants are removed from the pulleys.

PULL UPWARDS

AND TOWARDS

REAR OF TROWEL

FIXED FACE

VEABLE

FACE

LOWER

PULLEY

Figure 29. Holding Lower Pulley Open

2. Place free end of CVT belt into upper pulley grooves.

CLUTCH

UPPER

PULLEY

INSTALLING DRIVE BELT

1. Place new CVT belt over the lower pulley. Squeeze the belt Figure 299) and pull the belt upwards and towards the rear of the trowel. This will spread open the faces of the lower drive pulley.

LOWER

PULLEY

Figure 30. Upper Pulley Belt Installation

3. Reconnect left-side CV Axle Assembly. to the left side gearbox and lower drive pulley coupler. See Figure 28.

PAGE 34 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 35

MAINTENANCE (NEW STYLE CLUTCH)

HOW IT WORKS

The Multi-Clutch functions much like a standard CVT system. As the engine RPM’s increase, the drive or primary clutch closes, forcing the belt to ride outwards on the drive sheaves. The closing of the drive clutch also forces the belt to open the driven or secondary sheaves. The opening and closing of these sheaves creates a ratio variation… hence CVT or Continuously Variable Transmission.

Belt protection is achieved within the Multi-Clutch through the use of a series of centrifugal clutches. While most CVT systems have a loose or slack belt while the engine idles, the sheaves of those systems are constantly rotating and wearing on the belt.

Those systems also require the stationary belt to be pinched by the constantly rotating sheaves during startup. The relative rotation of the sheaves to the belt causes unnecessary wear on the belt. With traditional CVT systems, wear on the belt happens any time the engine is idling and at every start up of the driven equipment. This is where the Multi-Clutch differs from the other CVT’s.

The Multi-Clutch utilizes two centrifugal clutches (the starter clutch system) to drive the sheaves of the drive (primary) clutch. What that means is that the belt can remain tight in the sheaves, and that both the sheaves and the belt are stationary while the vehicle is idling. This eliminates the belt wear at an idle, and during start up, while also providing one additional form of belt protection.

The centrifugal clutches (starter clutch) can act as overload protection as well. In cases where too much torque is trying to be transmitted to the belt, the centrifugals can slip before the maximum load on the belt is achieved. What this means is that instead of the belt slipping on the sheaves during an overload, the centrifugals will ﬁrst slip further protecting the belt from damage.

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 35

Page 36

MAINTENANCE

OPERATING

BLADE PITCH

Matching Blade Pitch for Both Sets of Blades

Sometimes it may be necessary to match blade pitch between the two sets of blades. There are some signs that this may be necessary. For example, the differences in pitch could cause a noticeable difference in ﬁnish quality between the two sets of blades. Or, the difference in blade pitch could make the machine difﬁcult to control. This is due to the surface area in contact with the concrete (the blade set with the greater contact area tends to stick to the concrete more).

Single Pitch™

On a Single Pitch™ trowel each spider assembly can be pitched individually, forcing the operator to constantly make adjustments on each pitch tower.

Twin Pitch™

Trowels equipped with Twin Pitch™ controls may need to have blade pitch between the two sets of blades “syncronized”. If the blades need to be syncronized this is easily accomplished by performing the following procedure. Refer to Figure 31.

Blade Pitch Adjustment Procedure

Maintenance adjustment of blade pitch is made by adjusting a bolt (Figure 32) on the arm of the trowel blade ﬁnger. This bolt is the contact point of the trowel arm to the lower wear plate on the thrust collar. The goal of adjustment is to promote consistent blade pitch and ﬁnishing quality.

Look for the following indications if blades are wearing unevenly. If so, adjustment may be necessary.

 Is one blade completely worn out while the others look

new?

 Does the machine have a perceptible rolling or bouncing

motion when in use?

 Look at the machine while it is running, do the guard

rings “rock up and down” relative to the ground?

 Do the pitch control towers rock back and forth?

SPIDER PLATE

TROWEL LEVER (FINGER)

1. Lift the pitch adjustment handle on either side. Once lifted, that side is now disconnected from the Twin Pitch™ system.

2. Adjust to match the opposite side.

3. When adjusted, lower the handle to Twin Pitch™ operating position.

POSITION

TWIN PITCH™

DISENGAGED

(ONE SIDE)

Figure 31. Pitch Towers

WHIT EMAN

SERI ES

TROWEL ARM

BLADE PITCH

ADJUSTMENT BOLT

Figure 32. Blade Pitch Adjustment Bolt

The easiest and most consistent way to make adjustments on the trowel arm ﬁngers is to use the Trowel Arm Adjustment Fixture (P/N 9177). It comes with all the hardware necessary to properly accomplish this maintenance and instructions on how to utilize this tool.

If a trowel arm adjustment ﬁxture is not available and immediate adjustment is necessary, temporary field adjustment can be made if you can see or feel which blade is pulling harder by adjusting the bolt that corresponds to that blade.

A better way to determine which blades need adjustment is to place the machine on a known FLAT surface (steel metal plate) and pitch the blades as ﬂat as possible. Look at the adjustment bolts. They should all barely make contact with the lower wear plate on the spider. If you can see that one of them is not making contact, some adjustment will be necessary.

PAGE 36 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 37

MAINTENANCE

Adjust the “high” bolts down to the level of the one that is not touching, or adjust the “low” bolt up to the level of the higher ones. If possible, adjust the low bolt up to the level of the rest of the bolts. This is the fastest way, but may not always work. Verify after adjustment the blades pitch correctly.

Blades that are incorrectly adjusted often will not be able to pitch ﬂat. This can occur if the adjusting bolts are raised too high. Conversely, adjusting bolts that are too low will not allow the blades to be pitched high enough for ﬁnishing operations.

If, after making Blade Pitch adjustments, the machine is still ﬁnishing poorly, blades, trowel arms, and trowel arm bushings may be suspect and should be looked at for adjustment, wear, or damage. See the following sections.

CHANGING BLADES

It is recommended that ALL the blades on the entire machine are changed at the same time. If only one or some of the blades are changed, the machine will not ﬁnish concrete consistently and the machine may wobble or bounce.

1. Place the machine on a ﬂat, level surface. Adjust

the blade pitch control to make the blades as ﬂat as possible. Note the blade orientation on the trowel arm. This is important for ride-on trowels as the two sets of blades counter-rotate. Lift the machine up, placing blocks under the main guard ring to support it.

2. Remove the bolts and lock washers on the trowel arm,

and then remove the blade.

CLEAN-UP

Never allow concrete to harden on the power trowel. Immediately after use wash any concrete off the trowel with water, be careful not to spray a hot engine or mufﬂer. An old paint brush or broom may help loosen any concrete that has started to harden.

TROWEL ARM ADJUSTMENT

Use the following procedure to check and adjust trowel arms, and check for worn or damaged components when it becomes apparent that the trowel is ﬁnishing poorly or in need of routine maintenance.

Look for the following indications. Trowel arm alignment, worn spider bushings or bent trowel arms may the cause.

 Are blades wearing unevenly? Is one blade completely

worn out while the others look new?

 Does the machine have a perceptible rolling or bouncing

motion when in use?

 Look at the machine while it is running. Do the guard

rings “rock up and down” relative to the ground?

1. Place the trowel in a FLAT, LEVEL area.

NOTICE

A level, clean area to test the trowel prior to and after is essential. Any unlevel spots in the ﬂoor or debris under the trowel blades will give an incorrect perception of adjustment. Ideally, a 5 x 5 Ft. (1.5 x 1.5 Meter) threequarter inch (19 mm) thick FLAT steel plate should be used for testing.

3. Scrape all concrete and debris from the trowel arm. This

is important to properly seat the new blade.

4. Install the new blade, maintaining the proper orientation

for direction of rotation.

5. Reinstall the bolts and lock washers.

6. Repeat steps 2-5 for all remaining blades.

2. Pitch the blades as ﬂat as possible. The adjustment bolts should all barely make contact with the lower wear plate on the spider. If one is not making contact, adjustment will be necessary (Figure 34).

STEERING ADJUSTMENT

The steering assist adjustment should be performed only by qualiﬁed service technicians. For HHN34TVD steering adjustment instructions, reference MQ Whiteman service bulletin 200925.

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 37

Page 38

Figure 33 illustrates “incorrect alignment,” worn spider

GEARBOX

WASHER

bushings or bent trowel arms. Check that the adjustment bolt is barely touching (0.10" max. clearance) lower wear plate. All alignment bolts should be spaced the same distance from the lower wear plate.

ADJUSTMENT BOLT

“DISHED”

EFFECT ON

FINISHED

CONCRETE

LOWER

WEAR PLATE

MAINTENANCE

SURFACE

Figure 33. Incorrect Spider Plate Alignment

Figure 34 illustrates the “correct alignment ” for a spider plate (as shipped from the factory).

GEARBOX

TROWEL

CORRECT

ALIGNMENT

SURFACE

ARM

MOUNTING BAR

BLADE

Figure 34. Correct Spider Plate Alignment

SPIDER REMOVAL

Remove the spider assembly from the gearbox shaft as follows:

1. Locate the cone point square head set screw (Figure

35) and attached jam nut found on the side of the spider assembly.

JAM NUT

SET SCREW

Figure 35. Spider Removal

TROWEL BLADE REMOVAL

Remove the trowel blades by removing the three hex head bolts (Figure 36) from the trowel arm. Set blades aside.

TROWEL ARM

TROWEL

BLADE

HEX HEAD

BOLT

LOCK

2. Loosen the jam nut and cone point square head set

Figure 36. Trowel Blade Removal

screw.

3. 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.

PAGE 38 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 39

MAINTENANCE

Hex-Shaft Section

TROWEL ARM REMOVAL

1. Remove the hardware securing the stabilizer ring to

the trowel arm. (Figure 37)

Figure 37. Stabilizer Ring

2. 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

38) from the spider plate.

3. Remove the trowel arm from the spider plate.

SPIDER

PLATE

out with the trowel arm, remove the bushing from the trowel arm and set aside in a safe place. If the bushing is retained inside the spider plate, carefully remove the bushing.

5. Examine the bronze trowel arm bushing (Figure 37), and clean if necessary. Replace bushing if out-ofround or worn.

BRONZE

BUSHING

Figure 39. Bronze Bushings

6. Wire brush any build-up of concrete from all six sides of the trowel arm. Repeat this for the remaining arms.

CHECKING TROWEL ARM STRAIGHTNESS

Trowel arms can be damaged by rough handling, (such as dropping the trowel on the pad), or by striking exposed plumbing, forms, or rebar while in operation. A bent trowel arm will not allow the trowel to operate in a smooth ﬂuid rotation. If bent trowel arms are suspect, check for ﬂatness as follows, refer to Figures 38 and 39:

Lever Mounting Slot

(Left Arm Shown)

Roll Pin Hole

Blade Attachment Bolt Hole (1 of 3)

Flat of Hexagonal-Shaft (Top of Arm)

ROLL

Round Shaft Section

Trowel Arm

Figure 40. Trowel Arm

1. Use a thick steel plate, granite slab or any surface

HEX HEAD

BOLT

(ZERK

FITTING)

which is true and ﬂat, to check all six sides of each trowel arm for ﬂatness.

2. Check each of the six sides of the trowel arm (hex section). A feeler gauge of .004" (0.10 mm) should not

Figure 38. Remove Roll Pin and Zerk Fitting

4. Should the trowel arm inserts (bronze bushing) come

pass between the ﬂat of the trowel arm and the test surface along its length on the test surface. (Figure 41 ) .

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 39

Page 40

TROWEL

FLAT

SURFACE

ADJUSTMENT

MAINTENANCE

TROWEL

DISTANCE =

FEELER GAUGE

(.005 in./0.127 mm)

ARM

FEELER GAUGE

(.004 in./0.10 mm)

TEST

Figure 41. Checking Trowel Arm Flatness

3. Next, check the clearance between the round shaft and the test surface as one of the ﬂat hex sections of the arm rests on the test surface. Rotate the arm to each of the ﬂat hex sections and check the clearance of the round shaft. Use a feeler gauge of .005" (0.127 mm). Each section should have the same clearance between the round of the trowel arm shaft and the test surface.

4. If the trowel arm is found to be uneven or bent, replace the trowel arm.

TROWEL ARM ADJUSTMENT

Shown in (Figure 42) is the adjustment ﬁxture with a trowel arm inserted. As each trowel arm is locked into the ﬁxture, the arm bolt is adjusted to where it contacts a stop on the ﬁxture. This will consistently adjust all of the trowel arms, keeping the ﬁnisher as ﬂat and evenly pitched as possible.

1. Locate the trowel arm adjustment tool P/N 9177.

BOLT

LOCKING

“DISTANCE”

SIDE VIEW

Figure 42. Trowel Arm Adjustment Tool Side View

2. Ensure the ﬁxture arm is in the proper setting (up or down) for your trowel arm rotation as shown in Figure 43.

NUT

FIXTURE

ARM

Figure 43. Trowel Arm Adjustment Setup

3. Unscrew the locking bolts on the adjustment tool and place the trowel arm into the ﬁxture channel as shown in Figure 44. A thin shim may be required to cover the blade holes on the trowel arm. Make sure to align the trowel adjustment bolt with the ﬁxture adjustment bolt.

ARM

SHIM

LOCKING

BOLTS

ARM

LEVER

TROWEL ARM ADJUSTMENT

FIXTURE

Figure 44. Trowel Arm Adjustment Fixture

Components

FIXTURE ARM

ADJUSTMENT BOLT

.010 in.

ADJUSTMENT BOLT

4. Use an allen wrench to tighten the locking bolts securing the trowel arm in place.

5. Adjust the bolt “distance” shown in Figure 44to match one of the arms. The other arms will be adjusted to match this distance.

6. Loosen the locking nut on the trowel arm lever, then turn the trowel arm adjusting bolt until it barely touches (.010") the ﬁxture adjusting bolt.

NOTICE

Arms with CLOCK-WISE blade rotation use the ﬁxture arm in the UP position (Figure 43, A). Arms with COUNTER CLOCK-WISE blade rotation use the ﬁxture with the ﬁxture arm in the DOWN position (Figure 43, B).

PAGE 40 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

7. Once the correct adjustment is made, tighten the lock nut on the trowel arm to lock in place.

8. Loosen locking nuts on the adjustment ﬁxture, and remove trowel arm.

9. Repeat steps for the remaining trowel arms.

Page 41

REASSEMBLY

MAINTENANCE

1. Clean and examine the upper/lower wear plates and thrust collar. Examine the entire spider assembly. Wire brush any concrete or rust build-up. If any of the spider components are found to be damaged or out of round, replace them.

2. Make sure that the bronze trowel arm bushing is not damage or out of round. Clean the bushing if necessary. If the bronze bushing is damaged or worn, replace it.

3. Reinstall bronze bushing onto trowel arm.

4. Repeat steps 2–3 for each trowel arm.

5. Make sure that the spring tensioner is in the correct position to exert tension on the trowel arm.

6. Insert all trowel arms with levers into spider plate (with bronze bushing already installed) using care to align grease hole on bronze bushing with grease hole ﬁtting on spider plate.

7. Lock trowel arms in place by tightening the hex head bolt with zerk grease ﬁtting and jam nut.

8. Re-install the blades onto the trowel arms.

9. Install stabilizer ring onto spider assembly.

10. Lubricate all grease points (zerk ﬁttings) with premium “Lithum 12” based grease, conforming to NLG1 Grade #2 consistency.

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.

WARNING

DO NOT lift the trowel when the pans are

attached.

ALWAYS install pans either on the work area or on an area that is next to and level with the work area.

Refer to Figure 43 when installing pans onto ﬁnisher blades.

KNOB, TIE-DOWN

Z-CLIP PANS

TIE-DOWN,

BLADE

Z-CLIP,

PAN

Figure 45. Z-Clip Finisher Pan Installation

BLADE

ASSEMBLY

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.

3. Attach the blade tie-downs to the far side of the Z-Clip brackets with tie-down knobs as shown in Figure 45.

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.

DECOMMISSIONING TROWEL/COMPONENTS

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), the following procedure must take place:

1. Drain all ﬂuids completely. These may include oil, gasoline, hydraulic oil and antifreeze. Dispose of properly in accordance with local and governmental regulations. Never pour on ground or dump down drains or sewers.

2. Remove battery and bring to appropriate facility for lead reclamation. Use safety precautions when handling batteries that contain sulfuric acid.

3. The remainder can be brought to a salvage yard or metal reclamation facility for further dismantling.

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 41

Page 42

Symptom Possible Problem Solution

Engine running rough or not at all.

Safety stop switch not functioning.

Trowel bounces, rolls concrete, or makes uneven

swirls in concrete.

Machine has a perceptible rolling motion while

running.

TROUBLESHOOTING

Troubleshooting (Ride-On Mechanical Trowel)

Stop switch malfunction?

Fuel?

Ignition?

Bad contacts? Replace switch.

Loose wire connections? Check wiring. Replace as necessary.

Other problems? Consult engine manufacturer’s manual.

Blades?

Pitch Adjustment?

Bent trowel arms?

Trowel arm bushings?

Thrust collar?

Thrust collar bushing?

Thrust bearing worn?

Main shaft?

Yoke?

Blade Pitch?

Make sure that the stop switch is functioning when the

operator is seated. Replace switch if necessary.

Look at the fuel system. Make sure there is fuel being

supplied to the engine. Check to ensure that the fuel

ﬁ lter is not clogged.

Check to ensure that the ignition switch has power and

is functioning correctly.

Make sure blades are in good condition, not excessively

worn. Finish blades should measure no less than 2

inches (50mm) from the blade bar to the trailing edge,

combo blades should measure no less that 3.5 inches

(89mm). Trailing edge of blade should be straight and

parallel to the blade bar.

Check that all blades are set at the same pitch angle

as measured at the spider. A ﬁ eld adjustment tool

is available for height adjustment of the trowel arms

(contact Parts Department).

Check the spider assembly for bent trowel arms. If one

of the arms is even slightly bent, replace it immediately.

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 inch (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.

Check the ﬂ atness of the thrust collar by rotating it on

the spider. If it varies by more than 0.02 inch (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 inch (1.6 mm) - as measured at

the thrust collar O.D., replace the bushing in the thrust

collar.

Check the thrust bearing to see that it is spinning freely.

Replace if necessary.

The main output shaft of the gearbox assembly should

be checked for straightness. The main shaft must run

straight and cannot be more than 0.003 inch (0.08 mm)

out of round at the spider attachment point.

Check to make sure that both ﬁ ngers of the yoke press

evenly on the wear cap. Replace yoke as necessary.

Check to ensure that each blade is adjusted to have the

same pitch as all other blades. Adjust per maintenance

section in manual.

PAGE 42 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 43

TROUBLESHOOTING

Troubleshooting (Ride-On Mechanical Trowel) - continued

Symptom Possible Problem Solution

Check all electrical connections in the lighting circuit.

Wiring?

Lights (optional) not working.

Retardant spray (optional) not working.

Steering is unresponsive.

Operating position is uncomfortable. Seat adjusted for operator? Adjust seat with lever located on the front of the seat.

Power head on Electric Pitch (optional) not

working.

Linkage on Twin Pitch not working.

Clutch slipping or sluggish response to engine

speed change.

Lights?

Bad switch?

Bad fuse? Check fuse. Replace fuse if defective.

Retardant? Check retardant level in tank. Fill tank as required.

Wiring?

Bad switch?

Bad spray pump?

Bad fuse? Check fuse. Replace fuse if defective.

Blade speed out of adjustment? See section on blade speed adjustment.

Steering linkage out of adjustment?

Worn components?

Broken or loose parts?

Wiring?

Switch?

Crank handles?

Broken part? Replace all broken parts immediately.

Worn belts? Replace belt.

Clutch out of adjustment?

Worn or defective clutch parts? Replace parts as necessary.

Worn bearings in gearbox?

Verify wiring is in good condition with no shorts. Replace

defective wiring or components immediately.

If +12VDC is present at light ﬁ xture connector when light

switch is activated and light does not turn on, replace

light bulb.

Check the continuity of light switch. Replace light switch

if defective.

Check all electrical connections in the spray pump

circuit. Verify wiring is in good condition with no shorts.

Replace defective wiring or components immediately.

Check the continuity of both left and right spray switches

(palm handles). Replace spray switch if defective..

If +12VDC is present at pump connector when spray

switch is activated and pump does not operate, replace

spray pump.

Adjust the connecting linkage found at the base of the

handle. Contact your MQ ﬁ eld service manager for

instructions.

Check for wear of steering bearings and linkage

components. Replace if necessary.

If the motor runs and the pitch is not affected, parts

inside the power head may be loose or broken. Return

power head to dealer for service.

Check all electrical connections and wiring. Check the

continuity at the power head unit. Verify that there is

voltage present at the power head switch with the key

switch in the “on” position.

Check the continuity of the switch. If switch is

malfunctioning, replace immediately.

Make sure that both crank handles are pushed down as

far as possible to ensure that the linkage is engaged.

Adjust per instructions in maintenance section of this

manual.

Rotate input shaft by hand. If shaft rotates with difﬁ culty,

check the input and output shaft bearings. Replace as

necessary.

Verify that the gearbox shaft rotates when the input shaft

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 43

Page 44

Symptom Possible Problem Solution

Difﬁ cult to start, fuel is available, but no spark at spark plug.

Difﬁ cult to start, fuel is available, and spark is present at the spark plug.

Difﬁ cult to start, fuel is available, spark is present and compression is normal.

Difﬁ cult to start, fuel is available, spark is present and compression is low.

No fuel present at carburetor.

TROUBLESHOOTING

Troubleshooting (Engine)

Spark plug bridging? Check gap, insulation or replace spark plug.

Carbon deposit on spark plug? Clean or replace spark plug.

Short circuit due to deﬁ cient spark plug insulation?

Improper spark plug gap? Set to proper gap.

Fuel reaching carburetor? Check fuel line.

Water in fuel tank? Flush or replace fuel tank.

Fuel ﬁ lter clogged? Replace fuel ﬁ lter.

Stuck carburetor? Check ﬂ oat mechanism.

Spark plug is red? Check transistor ignition unit.

Spark plug is bluish white?

No spark present at tip of spark plug?

No oil? Add oil as required.

Oil pressure alarm lamp blinks upon starting? (if applicable)

ON/OFF switch is shorted? Check switch wiring, replace switch.

Ignition coil defective? Replace ignition coil.

Improper spark gap, points dirty? Set correct spark gap and clean points.

Condenser insulation worn or short circuiting? Replace condenser.

Spark plug wire broken or short circuiting? Replace defective spark plug wiring.

Wrong fuel type?

Water or dust in fuel system? Flush fuel system.

Air cleaner dirty? Clean or replace air cleaner.

Choke open? Close choke.

Suction/exhaust valve stuck or protruded? Reseat valves.

Piston ring and/or cylinder worn? Replace piston rings and/or piston.

Cylinder head and/or spark plug not tightened properly?

Head gasket and/or spark plug gasket damaged? Replace head and spark plug gaskets.

No fuel in fuel tank? Fill with correct type of fuel.

Fuel cock does not open properly?

Fuel ﬁ lter/lines clogged? Replace fuel ﬁ lter.

Fuel tank cap breather hole clogged? Clean or replace fuel tank cap.

Air in fuel line? Bleed fuel line.

Check spark plug insulation, replace if worn.

If insufﬁ cient compression, repair or replace engine. If injected air leaking, correct leak. If carburetor jets clogged, clean carburetor.

Check transistor ignition unit is broken, and replace defective unit. Check if voltage cord cracked or broken and replace. Check if spark plug if fouled and replace.

Check automatic shutdown circuit, "oil sensor". (if applicable)

Flush fuel system, and replace with correct type of fuel.

Torque cylinder head bolts and spark plug.

Apply lubricant to loosen fuel cock lever,

replace if necessary.

PAGE 44 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 45

Symptom Possible Problem Solution

Weak in power, compression is proper and does not misﬁ re.

Weak in power, compression is proper but misﬁ res.

Engine overheats.

Rotational speed ﬂ uctuates.

Recoil starter malfunctions. (if applicable)

Starter malfunctions.

Burns too much fuel.

Exhaust color is continuously "white".

Exhaust color is continuously "black".

Will not start, no power with key "ON". (if applicable)

TROUBLESHOOTING

Troubleshooting (Engine) - continued

Air cleaner dirty? Clean or replace air cleaner.

Improper level in carburetor? Check ﬂ oat adjustment, rebuild carburetor.

Defective spark plug? Clean or replace spark plug.

Improper spark plug? Set to proper gap.

Water in fuel system?

Dirty spark plug? Clean or replace spark plug.

Ignition coil defective? Replace ignition coil.

Spark plug heat value incorrect? Replace with correct type of spark plug.

Wrong type of fuel? Replace with correct type of fuel.

Cooling ﬁ ns dirty? Clean cooling ﬁ ns.

Intake air restricted?

Oil level too low or too high? Adjust oil to proper level.

Governor adjusted incorrectly? Adjust governor.

Governor spring defective? Replace governor spring.

Fuel ﬂ ow restricted? Check entire fuel system for leaks or clogs.

Recoil mechanism clogged with dust and

dirt?

Spiral spring loose? Replace spiral spring.

Loose, damaged wiring?

Battery insufﬁ ciently charged? Recharge or replace battery.

Starter damaged or internally shorted? Replace starter.

Over-accumulation of exhaust products?

Wrong spark plug?

Lubricating oil is wrong viscosity? Replace lubricating oil with correct viscosity.

Worn rings? Replace rings.

Air cleaner clogged? Clean or replace air cleaner.

Choke valve set to incorrect position? Adjust choke valve to correct position.

Carburetor defective, seal on carburetor

broken?

Poor carburetor adjustment, engine runs too

rich?

ON/OFF device not activated ON? Turn on ON/OFF device.

Battery disconnected or discharged?

Ignition switch/wiring defective? Replace ignition switch. Check wiring.

Flush fuel system and replace with correct type of fuel.

Clear intake of dirt and debris. Replace air cleaner elements as necessary.

Clean recoil assembly with soap and water.

Ensure tight, clean connections on battery

and starter.

Check and clean valves. Check mufﬂ er and

replace if necessary.

Replace spark plug with manufacturer's suggested type.

Replace carburetor or seal.

Adjust carburetor.

Check cable connections. Charge or replace

battery

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 45

Page 46

WIRING DIAGRAM

RETARDANT SPRAY

KILL SWITCH

OIL PRESSURE

SENSOR

CHASSIS

GROUND

P/N 11866

WATER TEMP.

SENSOR

CONNECT TO

TERMINAL

STRIP

P/N 11864

WHITE WIRE JUMPERS

BLK

PUMP

FUEL

SILVER

14 AWG

0RANGE

YEL 14 AWG

WHT

WHITE 12 AWG

P/N 19301

RED 16 AWG

WHITE 12 AWG

RED 16 AWG

WHITE 12 AWG

BROWN 12 AWG

I F

PURPLE 12 AWG

CONTROL

MODULE

GOLD 12 AWG

LIGHT GREEN 12 AWG

IGNITION

BLK

GREEN 12 AWG

BLUE 12 AWG

RED

P14

P15

RED

P16

RED

BREAKER

CONNECT TO

CHASSIS

GROUND

P11

P12

P13

40 AMP

CIRCUIT

W H

IT E 1

0 A

BLK

BLK BLKBLK BLK BLK

P/N 11867

IGNITION

30 AMP

CIRCUIT

BREAKER

E 1

W W H

IT E 1

0 A

W G

RED 10 AWG

SWITCH

O W N 1 2

A W

ACCESSORY

BLK

OIL

WATER

CHG

STATUS INDICATOR LIGHTS

CONNECT TO

CHASSIS

GROUND

BLUE

SOLENOID

WHITE 12 AWG

E 1

BLUE 16 AWG

W H

IT E 1

2 A

W G

BLUE

WHITE 12 AWG

P/N 11862

P/N 11863

LIGHT SWITCH

RED

SWITCHES

CONNECT TO

ENGINE

GROUND

BATTERY

12V DC

GOLD

COIL

RED

POSITIVE

NEGATIVE

BLK

PURPLE

COIL

STARTER

LIGHT GREEN

COIL

WHITE

RED 10 AWG

BLUE

P10

BLUE

ENGINE

POSITION

SENSOR

GREEN GREEN

HALL EFFECT

LAMP

LIGHT BLUE

ALTERNATOR

RED

IGNITION

WHITE 10 AWG

RED

BLK

CONNECT TO

CHASSIS

GROUND

HOUR METER

16 AWG

WHT

P21

P27

BLK

LIGHTS

WHT

P20

P26

BLK

WHT

P18

P24

BLK

WHT

P17 P23

BLK

RED

FRAME HARNESS

P/N 2775

WIRING

MAIN ENGINE WIRING HARNESS P/N 11373

BLUE 16 AWG

BLK

MOTOR

SPRAY

LIGHTS

PAGE 46 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 47

NOTES

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 47

Page 48

EXPLANATION OF CODE IN REMARKS COLUMN

The following section explains the different symbols and

PART NO. Column

QTY. Column

— Item quantity can be indicated by a

A/R (As Required) is generally used for hoses or other

A blank entry generally indicates that the item is not sold separately. Other entries will be clariﬁ ed in the “Remarks”

Some of the most common notes found in the “Remarks” Column are listed below. Other additional notes needed

same unique symbol will be included when this item is

— Used to list an effective serial

— Indicates that the part

part is NOT used on a speciﬁ c model or model number

available items. Examples include battery cables, shims,

— Indicates that an item cannot be purchased as a separate item and is either part of an assembly/kit that can be purchased, or is not available

remarks used in the Parts section of this manual. Use the help numbers found on the back page of the manual if there are any questions.

Numbers Used

number, a blank entry, or A/R.

NOTICE

The contents and part numbers listed in the parts section are subject to change without notice. Multiquip does not guarantee the availability of the parts listed.

SAMPLE PARTS LIST

NO. PART NO. PART NAME QTY. REMARKS

1 12345 BOLT .....................1 .....INCLUDES ITEMS W/%

2% WASHER, 1/4 IN. ..........NOT SOLD SEPARATELY

2% 12347 WASHER, 3/8 IN. ..1 .....MQ-45T ONLY

3 12348 HOSE ..................A/R ...MAKE LOCALLY

4 12349 BEARING ..............1 .....S/N 2345B AND ABOVE

NO. Column

Unique Symbols — All items with same unique

symbol

(@, #, +, %, or >) in the number column belong to the same assembly or kit, which is indicated by a note in the “Remarks” column.

Duplicate Item Numbers — Duplicate numbers indicate multiple part numbers, which are in effect for the same general item, such as different size saw blade guards in use or a part that has been updated on newer versions of the same machine.

NOTICE

When ordering a part that has more than one item number listed, check the remarks column for help in determining the proper part to order.

parts that are sold in bulk and cut to length.

Column.

REMARKS Column

to describe the item can also be shown.

Assembly/Kit — All items on the parts list with the

purchased.

Indicated by:

“INCLUDES ITEMS W/(unique symbol)”

Serial Number Break

number range where a particular part is used.

Indicated by:

“S/N XXXXX AND BELOW” “S/N XXXX AND ABOVE” “S/N XXXX TO S/N XXX”

Speciﬁ c Model Number Use

is used only with the speciﬁ c model number or model number variant listed. It can also be used to show a

variant.

Indicated by:

Numbers Used — Part numbers can be indicated by a number, a blank entry, or TBD.

TBD (To Be Determined) is generally used to show a part that has not been assigned a formal part number at the time of publication.

A blank entry generally indicates that the item is not sold separately or is not sold by Multiquip. Other entries will be clariﬁ ed in the “Remarks” Column.

PAGE 48 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

“XXXXX ONLY” “NOT USED ON XXXX”

“Make/Obtain Locally” — Indicates that the part can be purchased at any hardware shop or made out of

and certain washers and nuts.

“Not Sold Separately”

for sale through Multiquip.

Page 49

HHN31V RIDE-ON POWER TROWEL WITH VANGUARD DM950 ENGINE

1 to 3 units

SUGGESTED SPARE PARTS

Qty. P/N Description

4.............0189 ..................... HANDLE GRIP

4.............2267 ..................... HANDLE GRIP (RIGHT SIDE)

1.............11430 ................... SWITCH

2.............12460 ................... CABLE, PITCH

1.............1617 ..................... LEVER ASSY. TROWEL

............................................. ADJUSTMENT

2.............2737 ..................... KNOB ASSY.

1.............10208 ................... MUFFLER W/CLAMP

1.............10434 ................... CLAMP

1.............10463 ................... CLAMP

4.............10937 ................... BELT (B-37)

1.............11771 ................... BRACKET ENGINE THROTTLE

............................................. CABLE

1.............12168 ................... HEADER PIPE

1.............2124 ..................... THROTTLE CABLE

5.............2829 ..................... ARMS

2.............2124 ..................... CABLE THROTTLE (RT)

10...........10031 ................... WASHER 1/4 IN.

2.............11692 ................... BRACKET BATTERY

2.............11693 ................... BOLT BATTERY

6.............2509 ..................... WING NUT

2.............12548 ................... SPRAY PUMP

2.............2108 ..................... CAP SPRAY TANK

2.............10958 ................... SWITCH, IGNITION

1.............19301 ................... TERMINAL STRIP (10-POLE)

1.............2580 ..................... CHOKE CABLE

Qty. P/N Description

1.............2673 ..................... CIRCUIT BREAKER 30 AMP, 12V

2.............4682 ..................... TOGGLE SWITCH

2.............8381 ..................... BOOT, TOGGLE SWITCH

1.............11792 ................... ACCESSORY SOLENOID

4.............11078 ................... KEYS, IGNITION (SWITCH)

2.............2655 ..................... HOUR METER

2.............9005 ..................... LEVER TROWEL ARM (L.S.)

20...........0166A ................... WASHER

20...........1876 ..................... JAM NUT

20...........0164B ................... SCREW

5.............11039 ................... BUSHING

2.............9111 ..................... SPRING (L.S.)

20...........1875 ..................... WASHER

20...........1322 ..................... SCREW ASSY., ARM RETAINING

2.............12611 ................... SPIDER PLATE

20...........1162A ................... CAP GREASE FITTING

20...........16602 ................... SCREW (HHC 3/8 -16 X 3/8)

20...........1456 ..................... NUT (3/8 -16)

20...........12097 ................... SCREW (SQH 3/8-16 X 1 3/4

............................................. CONE)

2.............2143 ..................... SPRING (R.S.)

2.............1986 ..................... LEVER TROWEL ARM (R.S.)

2.............12005 ................... SAFETY KILL SWITCH

20...........0181B ................... WASHER 1/4 IN

2.............11418 ................... FUEL CAP/GUAGE

20...........4514 ..................... SCREW (HHC 1/4-20 X 5/8)

NOTICE

Part numbers on this Suggested Spare Parts list may supersede/replace the part numbers shown in the following parts lists.

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 49

Page 50

NAMEPLATES AND DECALS

HHN

SERIES

RETARDANT ONLY

PAGE 50 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 51

NAMEPLATES AND DECALS

NO. PART NO. PART NAME QTY. REMARKS

1 11246 DECAL: LIFT .....................................................2................PART OF DECAL KIT12620

2 1499 DECAL: MQ WHITEMAN (RED/TOWER) 2 3 2634 DECAL: DANGER (COMPRESSION) 2

4 11246 DECAL: LUBRICATION ....................................4................PART OF DECAL KIT12620

5 12571 DECAL: OPERATING LIGHTS 1

6 11247 DECAL: HELMET, HAND AND FOOT ..............1................PART OF DECAL KIT12620

7 11246 DECAL: RADIATING HEAT ...............................1................PART OF DECAL KIT12620

8 20198 DECAL: HHN SERIES 1 9 13118 DECAL: POWDER COATED 1 10 10818 DECAL: MQ WHITEMAN (WHITE/PANEL) 1

11 DECAL: NAME PLATE ......................................1................CONTACT MQ SERVICE DEPT

.............................................................................................W/ MODEL & S/N

12 11246 DECAL: CHECK HYDRAULIC OIL ...................2................PART OF DECAL KIT12620

13 11246 DECAL: GEAR DRIVE ......................................2................PART OF DECAL KIT12620

14 11246 DECAL: BELT DRIVE........................................1................PART OF DECAL KIT12620

15 22088 DECAL, "ENGINE FUEL ONLY" 1

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 51

Page 52

PIVOT/GEARBOX (RIGHT SIDE) ASSY.

SCREWS ARE PART OF

VIEW FROM OPERATOR’S SEAT

RIGHT-SIDE

GEARBOX

NOTES:

RIGHT-SIDE GEARBOX ASSEMBLY. TO ORDER

SCREWS USE P/N 9154

PAGE 52 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 53

PIVOT/GEARBOX (RIGHT SIDE) ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 1023 SCREW, HHC 3/8 -16 X 1-1/4 8 2 0166A WASHER, LOCK 3/8 MED 8

3 9154 SCREW ..............................................................4................PART OF GEARBOX

4 12713 ROCKER BLOCK 2 5 12725 BLOCK, ROCKER 2 6 12716 TRUNNION W/A 1 7 12704 GEARBOX, COMPLETE 1 8 12859 PLATE G.B. SPACER 1 9 12856 BRACKET, DIRECTION CONTROL 1

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 53

Page 54

VIEW FROM OPERATOR’S SEAT

PIVOT/GEARBOX (LEFT SIDE) ASSY.

LEFT-SIDE GEARBOX

NOTES:

SCREWS ARE PART OF

LEFT-SIDE GEARBOX ASSEMBLY. TO ORDER SCREWS USE P/N 9154.

USE ITEMS 9, 10 AND 11 TO MOUNT RIGHT-SIDE

GEARBOX.

PAGE 54 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 55

PIVOT/GEARBOX (LEFT SIDE) ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 1023 SCREW, HHC 3/8 -16 X 1-1/4 8 2 0166A WASHER, LOCK 3/8 MED 8

3 9154 SCREW ..............................................................4................PART OF GEARBOX

4 12719 PIVOT, GEAR BOX W/A 1 5 12725 BLOCK, ROCKER 2 6 12859 PLATE G.B. SPACER 1 7 12703 GEARBOX, COMPLETE 1 8 12856 BRACKET, DIRECTION CONTROL 1

9 0176 NUT, NYLOC 1/2-13 ..........................................2................USE ON RS GEARBOX

10 0447 WASHER, FLAT 1/2 SAE ...................................2................USE ON RS GEARBOX

11 2549 SCREW, HHC 1/2-13 X3 ...................................2................USE ON RS GEARBOX

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 55

Page 56

GEARBOX ASSY.

BEARING

KIT

USE SILICONE SEALANT

UNDER RETAINER; LOCTITE #30518.

TORQUE TO 30 FT-LBS.

USE SILICONE SEALANT

AT SPLICE; LOCTITE #30518.

BEARING CONE FOR OLD STYLE

GEARBOX IS NOT INCLUDED IN KIT.

PAGE 56 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 57

GEARBOX ASSY.

NO. PART NO. PART NAME QTY. REMARKS

$ 0166 A WASHER, LOCK 3/8 MED 16

$ 10136 WASHER, FLAT SAE 3/8 16

$ 0181 B WASHER, LOCK 1/4 MED 8

$ 0948 WASHER, FLAT SAE 1/4 8

$ 0205 SCREW, HHC 3/8-16 X 1 8

$ 0205 SCREW, HHC 3/8-16 X 1 16

$ 0730 SCREW, HHC 1/4-20 X 1 8

$ 2295 SCREW, HHC 1/4-20 X 7/8 8

$ 10136 WASHER, FLAT, 3/8 SAE 8

5 6$ 11584 SIGHT GLASS, 3/4 MALE PIPE 1 7$ 11682 FITTING, PLUG, 1/8 MP SQ HEAD 1

$ 12599 GEARBOX HOUSING 1

$ 21812 GEARBOX HOUSING 1

$ 12600 COVER, GEAR BOX 1

$ 21811 COVER, GEAR BOX 1

$ 12601 CAP, GEARBOX INPUT 1

$ 21813 CAP, HELICAL GEARBOX INPUT 1

$ 12602 CAP, GEARBOX IDLER 2

$ 21810 CAP, HELICAL GEARBOX IDLER 2

11 12$% 21809 HUB, INPUT SHAFT 1 13$+ 21808 GEAR, 85T HELICAL 1 14$@ 21807 PINION, 17T HELICAL 1 15$@ 21806 GEAR, 60T HELICAL 1 16$% 21805 PINION, 15T BEVEL 1 17$+ 21804 SHAFT, OUTPUT 1

12691 BEARING, CONE TIMKEN #M84249 2

$% 21803 BEARING, CONE SKF 32305 J2 2

12692 BEARING, CUP TIMKEN #M84210 2

12693 BEARING, CONE TIMKEN #2793 2

$@ 21802 BEARING, CONE SKF 32307 J2 2

12694 BEARING, CUP TIMKEN #2729 2

22$% 12696 COUPLER, GEARBOX 1 23$ 12697 PIN, DOWEL 0.375/.3752 X 3/4 2 24$%# 12698 O RING, SIZE - 151 BUNA N 4

NOTICE

S/N BI0203468 AND BELOW

BI0203469 AND ABOVE, AND S/N BH0203412

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 57

Page 58

GEARBOX ASSY.

BEARING

KIT

USE SILICONE SEALANT

UNDER RETAINER; LOCTITE #30518.

TORQUE TO 30 FT-LBS.

USE SILICONE SEALANT

AT SPLICE; LOCTITE #30518.

BEARING CONE FOR OLD STYLE

GEARBOX IS NOT INCLUDED IN KIT.

PAGE 58 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 59

GEARBOX ASSY.

NO. PART NO. PART NAME QTY. REMARKS

25$# 12700 SEAL, CASE 0-RING HHN 0.103 X 46. 38 1 26$%# 12701 SEAL, NATIONAL #471424 1 27$# 12702 SEAL, NATIONAL #470682 1 28$@ 12735 KEY, 3/8 X 3/4 1 29$+ 12736 KEY, HARDENED 3/8 X 1-1/2 1

30+ 12796 BEARING, CONE TIMKEN #26882 2

$+ 21801 BEARING, CONE SKF 33109 Q 2

12797 BEARING, CUP TIMKEN #26823 2

$ 20932 SHIM, INPUT. 0.002 THICK 3

$ 21800 SHIM, INPUT. 0.002 THICK 3

32 33$% 1313 SCREW, FHSC 3/8 - 24 X 3/4 PLAIN 1 34$% 26034 KEY, 3/16 X 17/32 1

$ 4196 SCREW, HHC 3/8 - 16 X 3/4 8 36$ 911064 FITTING, PLUG 1/2 MP SQ HEAD 1 37$ 911329 FITTING, PLUG 3/8 MP MAGNETIC 2 38$% 9120 RETAINER, DRIVEN PULLEY 1 39$ 9154 SCREW, HHC 3/8 - 16 X 1-3/4 4

20933 KIT, BEARING/SEAL HHN HELICAL ....................1 ................INCLUDES ITEMS W/ #

41 21854 GEARBOX ASSY., RIGHT ....................................1 ................INCLUDES ITEMS W/ $

42 21853 GEARBOX ASSY., LEFT.......................................1 ................INCLUDES ITEMS W/ $

43 21853854INPUT KIT, INPUT PINION/HUB/COUPLER ....................1 ................INCLUDES ITEMS W/ %

44 21853854INTER KIT, INTER PINION/GEAR ...................................1 ................INCLUDES ITEMS W/@

45 21853854OUTER KIT, OUTPUT SHAFT/GEAR ................................1 ................INCLUDES ITEMS W/ +

$ 12687 KEY, 3/8 SQ X 2 1

NOTICE

S/N BI0203468 AND BELOW

BI0203469 AND ABOVE, AND S/N BH0203412

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 59

Page 60

CONTROL STEERING (ASSIST) 1 ASSY.

RIGHT & LEFT STEERING CONTROLS

FROM OPERATORíS SEAT

-SID

DETAIL A

RIGHT-SIDE

GEARBOX

NOTES:

SEE DETAIL A ON CONTROL STEERING

(ASSIST) 2 ASSY. CONNECT TO LOWER RIGHT HANDLE ASSY.

PAGE 60 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 61

CONTROL STEERING (ASSIST) 1 ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 0131 A SCREW, HHC 1/4-20 X 3/4 12 3 0447 WASHER, FLAT, 1/2 SAE 12 6 10024 NUT, NYLOC 1/4-20 16 7 10133 NUT, NYLOC 3/8-16 8 8 10136 WASHER, FLAT,3/8 SAE 16 9 10176 NUT, NYLOC 1/2-13 13 10 1023 SCREW, HHC 3/8-16 X 1 1/4 8 11 11127 LEVER, STEERING CONTROL W/A 2 13 11139 BEARING, FLANGE HOUSING 40M-2 6 14 11141 SPACER, ROD END 5 15 11142 ROD END, 1/2-20 MALE RH 9 16 11143 ROD END, 1/2-20 FEMALE RH 7 19 11146 NUT, HEX JAM 1/2-20 11 21 11150 BEARING, SB-201-8 6 22 11170 SCREW, HHC 1/2-20 X 1.1/2” 2 25 11205 ROD, L/R MOTION 1 26 12193 LEVER, L/R CONTROL W/A 1 34 5054 A WASHER, LOCK, 1/2 MED. 2 36 6159 A SCREW, HHC 1/2-13 X 2 13

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 61

Page 62

RIGHT & LEFT STEERING CONTROLS

CONTROL STEERING (ASSIST) 2 ASSY.

FROM OPERATORíS SEAT

RIGHT

LEFT

LOWER RIGHT HANDLE ASSY.

DETAIL A

NOTES:

SEE DETAIL A ON

CONTROL STEERING (ASSIST) 1 ASSY.

PAGE 62 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 63

CONTROL STEERING (ASSIST) 2 ASSY.

NO. PART NO. PART NAME QTY. REMARKS

2 2267 GRIP HANDLE, LEFT-RIGHT 2 3 0447 WASHER, FLAT, 1/2 SAE 12 4 0735 BEARING, CONE, TIMKEN #A6075 4 5 0735 A BEARING, CUP, TIMKEN #A6157 4 8 10136 WASHER, FLAT,3/8 SAE 16 9 10176 NUT, NYLOC 1/2-13 13 12 11138 BEARING, P-BLOCK HOUSING 47MPB 4 14 11141 SPACER, ROD END 5 15 11142 ROD END, 1/2-20 MALE RH 9 16 11143 ROD END, 1/2-20 FEMALE RH 7 17 11144 SCREW, SHC 1/2-20 X 2 PLTD 1 18 11145 SCREW. SHC 1/2-20 X 3 PLTD 1 19 11146 NUT, HEX JAM 1/2-20 11 20 11149 BEARING, SB-204-12 4 22 11170 SCREW, HHC 1/2-20 X 1.1/2” 2 23 11173 THREADPIECE, 1/2-20 X 2 PLTD 1 24 11177 HANDLE TUBE, UPPER 2 27 12200 ASSIST ASM, STEERING SPRING 2 28 12904 STEERING CONTROL W/A RS ASSIST 1 29 12903 STEERING CONTROL W/A LS ASSIST 1 30 12425 HANDLE , LOWER W/A 2 31 12426 NUT, SLOTTED 3/4-16 PLATED 2 32 2197 NUT, ACORN 1/4-20 2 33 2219 PIN, COTTER 1/8 X 1 1/2 2 34 5054 A WASHER, LOCK, 1/2 MED. 2 35 5277 SCREW, HHC 1/4-20 X 1 1/2 2 36 6159 A SCREW, HHC 1/2-13 X 2 13 37 8151 WASHER, FLAT, 3/4 SAE 4 38 11430 SWITCH, PUSHBUTTON 1

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 63

Page 64

LEFT SIDE TWIN PITCH TOWER

ASSEMBLY P/N 12386 ITEM 55 (VIEW FROM OPERATOR'S SEAT).

TWIN PITCH ASSY. 1 (LEFT/RIGHT)

LEFT

RIGHT

CONTINUED ON TWIN PITCH ASSY. 2

SEE , ITEM 32.

LEFT

RIGHT

CONTINUED ON TWIN PITCH ASSY. 2 SEE , ITEM 31.

NOTES: LEVER ASSEMBLY, ITEM 57

INCLUDES ITEMS WITHIN OUTLINE.

RIGHT SIDE TWIN PITCH ASSEMBLY P/N 12385 ITEM 54 IS IDENTICAL TO LEFT SIDE

TWIN PITCH ASSEMBLY UNLESS OTHERWISE NOTED.

KNOB KIT P/N 2737 (ITEM 73)

INCLUDES ITEMS 61, 62, 64 AND 65.

PAGE 64 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 65

TWIN PITCH ASSY. 1 (LEFT/RIGHT)

NO. PART NO. PART NAME QTY. REMARKS

1+% 0126 B KEY, WOODRUFF #9 1 2+% 0161C WASHER, LOCK 5/16 MED 1 3@+% 0181 B WASHER, LOCK, 1/4 MED 4 4+% 0655 SCREW, HHC 5/16 – 18 X 3/4 1 5+% 0685 SCREW, SHS 5/16 – 18 X 5/16 1 6+% 0948 WASHER, FLAT, 1/4 SAE 1 7+% 10382 BOLT, SHOULDER, 3/8 X 3/8 LONG 1

8+ 10511 SHAFT, PITCH CONTROL, LH TPC ................. 1 .............. LEFT SIDE ONLY

9+% 10512 RING, SNAP, TRUARC 5160 – 75 1 10+% 10546 HOUSING, PITCH CONTROL, 1-3/4 1

11+ 10722 SLIDE BLOCK, LH PITCH CON ........................ 1 .............. LEFT SIDE ONLY

12+% 10723 PIN, SPIROL 3/16 X 1 3/8 HD 1 13+% 1116 NUT, BRASS JAM 5/16 – 18 2 14@+% 11583 U-JOINT, PITCH CONTROL 2 15@+% 1162 A CAP, GREASE ZERK 2 16+% 12460 CABLE, PITCH ASM 1 19+% 20005 SHAFT, TWIN PITCH 1

20@+% 11654 PIN, ROLL 1/8 X 1 PLATED ............................. 5 .............. QTY. INCLUDES USAGE ON BOTH TWIN PITCH

............................................................................................ ASSEMBLIES, AND MITER BOX SHAFTS

22+% 1529 GEAR, MASTER, TPC 1 23+% 1530 GEAR, SLAVE, TPC 1

24@+% 1578 KEY, WOODRUFF, #3 ........................................ 9 .............. QTY. INCLUDES USAGE ON BOTH TWIN PITCH

............................................................................................ ASSEMBLIES, AND MITER BOX SHAFTS

25+% 1579 SCREW, HHC 1/4 – 20 X 1/2 1 26+% 1586 PIN, ROLL 1/8 X 3/4 1 27+% 1604 BEARING, BALL 1 28+% 1612 BEARING, ALUM – PITCH CONTR 1 29@+% 1733 WASHER, 1/32 X 1/2 HARDENED 8 30+% 2007 SHAFT 1 33+% 2169 BEARING, THRUST, TORR #NTA 1220 1 34+% 2170 BEARING, RACE, TORR #TRA 1220 3 35+% 2311 SPACER, 3/4 X 1/2 X 0.8L 1 36+% 2367 SET COLLAR.NCLUDES ITEM 5 37+% 2620 SCREW, BHC 10 – 24 X 5/8 4 38@+% 2621 ZERK, GREASE STR 1/4 – 28 2 40+% 2649 COVER, PITCH CONT HOUSING 1

57 1617 LEVER ASSY, TROWEL ADJUSTMENT ........... 1 .............. INCLUDES ITEMS W/#

58 2300 DECAL, AL PITCH, RH 1 59 2332 DECAL, AL PITCH, LH 1 60# 4014 SCREW, 2-3/16 P-K TYPE U DRIVE 2 61#$ 4403 CRANK KNOB 1 62#$ 3231 SPACER 1 63# 1615 CRANK LEVER 1 64#$ 1733 HARDENED WASHER 1 65#$ 1616 SHOULDER BOLT 1 66# 0185 SCREW, SHSS 3/8 – 16 X 3/8" 1 67# 1528 SCREW, SHSS 1/4 – 20 X 5/16" 1

68% 10510 SHAFT, PITCH CONTROL, RH TPC ................. 1 .............. RIGHT SIDE ONLY

69% 10721 SLIDE BLOCK, RH PITCH CONTROL .............. 1 .............. RIGHT SIDE ONLY

70 10114 WASHER, EXT. SHKP, #8 4 71 1162A CAP, GREASE ZERK/2 1 72 2621 FITTING GREASE 1

73 2737 KNOB, KIT ......................................................... 1 .............. INCLUDES ITEMS W/$

NOTICE

Indicated quanties are for one pitch tower. If ordering for two pitch towers double the quantity.

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 65

Page 66

TWIN PITCH ASSY. 2 (LEFT/RIGHT)

CONTINUED FROM , ITEM 13

SEE TWIN PITCH 1 ASSY.

PART OF LEFT SIDE TWIN PITCH TOWER ASSEMBLY

CONTINUED FROM , ITEM 19 SEE TWIN PITCH 1 ASSY.

TYPICAL BOTH LEFT AND RIGHT SIDES

COMPLETE MITER BOX ASSEMBLY

TO MITER BOX

NOTES: MITER BOX ASSEMBLY, ITEM 56

INCLUDES ITEMS WITHIN OUTLINE.

ITEM 49 (VERTICAL SHAFT) COUPLES THE LEFT AND RIGHT SIDES OF THE

TWIN PITCH CONTROLS. BOTH LEFT AND RIGHT SIDES ARE IDENTICAL UNLESS OTHERWISE NOTED.

PAGE 66 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 67

TWIN PITCH ASSY. 2 (LEFT/RIGHT)

NO. PART NO. PART NAME QTY. REMARKS

3@+% 0181 B WASHER, LOCK, 1/4 MED 4 14@+% 11583 U-JOINT, PITCH CONTROL 2 15@+% 1162 A CAP, GREASE ZERK 2 16+% 12460 CABLE, PITCH ASM 1 17 10548 TUBE, PITCH CONTROL W/A 1

20@+% 11654 PIN, ROLL 1/8 X 1 PLATED .............................5........... QTY. INCLUDES USAGE ON BOTH

....................................................................................... TWIN PITCH ASSEMBLIES, AND

....................................................................................... MITER BOX SHAFTS

21 1499 DECAL, WHITEMAN 1 22+% 1529 GEAR, MASTER, TPC 1 23+% 1530 GEAR, SLAVE, TPC 1

24@+% 1578 KEY, WOODRUFF, #3 .......................................9........... QTY. INCLUDES USAGE ON BOTH

....................................................................................... TWIN PITCHASSEMBLIES, AND

....................................................................................... MITER BOX SHAFTS

29@+% 1733 WASHER, 1/32 X 1/2 HARDENED 8 31 2012 SLEEVE, ADJ – LONG, RIDER 1 32 2156 SPRING, COIL 1 38@+% 2621 ZERK, GREASE STR 1/4 – 28 2 39 2634 DECAL, PITCH TOWER 1 41 0202 SCREW, HHC 5/16 – 18 X 1 4 42 0300 B WASHER, FLAT, 5/16 SAE 4 43@ 0730 SCREW, HHC 1/4 – 20 X 1 8 44@ 11653 SLEEVE W/U JOINT 1 45@ 1577 SET COLLAR, 1/2 2 46@ 1987 MITER BOX, PITCH CONTROL 1 47@ 1988 MITER BOX, BEARING CAP RIDERS 2 48@ 2021 SHAFT, MITER VERT 1

49@ 2022 SHAFT, MITER VERTICAL ...............................3........... QTY. INCLUDES USAGE ON BOTH

....................................................................................... TWIN PITCH ASSEMBLIES, AND

....................................................................................... MITER BOX SHAFTS

51@ 2845 SHAFT, MITER BOX HORIZ (HNN) 1 52@ 4514 SCREW, HHC 1/4 – 20 X 5/8 4 53 5283 NUT, NYLOC 5/16 – 18 4

56 11655 MITER BOX ASSY (HHN) ................................1........... INCLUDES ITEMS W/@

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 67

Page 68

ENGINE MOUNTING & THROTTLE ASSY.

NOTES:

TO THROTTLE FOOT

PEDAL ASSY.

PAGE 68 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 69

ENGINE MOUNTING & THROTTLE ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 0937 NUT, HEX 10-32 2 2 10237 WASHER, EXT. SHKP. #10 1 3 11710 SPACER, ENG THROTTLE 1 4 8133 SCREW, RHM 10-32 X 3/4 1 5 2203 WASHER, FLAT #10 1 6 2153 ROD END, 10-32 FEMALE RH 1 7 11771 BRACKET, ENGINE THROTTLE CABLE 1 8 0161 C WASHER, LOCK, 5/16 MED. 8 9 2299 SCREW, HHC M8-1.25 X 16mm 3 10 2124 CABLE, THROTTLE (RT) 1 11 10087 NUT, NYLOC 1/2-20 THIN 1 12 0447 WASHER, FLAT 1/2 SAE 1 13 0202 SCREW, HHC 5/16-18 X 1 3 14 0300 B WASHER, FLAT, 5/16 SAE 2 15 5283 NUT, NYLOC 5/16-18 3 16 2866 SCREW, HHC M8-1.25 X 20mm 4 17 12844 MOUNT, 31V ENGINE W/A 1 18 19468 GROMMET, MINOR PN Z-4004 2 19 12199 WASHER, FLAT 2 20 0183 COTTER OIN 2 21 11292 ENGINE, BRIGGS 31 HP DM950G 1

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 69

Page 70

STUD BOLTS ARE

WELDED TO

ENGINE MOUNT

ENGINE CRADLE MOUNTING ASSY.

ENGINE MOUNT

HHN FRAME

ENGINE CRADLE

MOUNT

PAGE 70 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 71

ENGINE CRADLE MOUNTING ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 20051 CRADLE, ENGINE W/A 1 2 10136 WASHER, FLAT, 3/8 SAE 8 3 1063 NUT NYLOC 3/8-24 4 4 8156 SCREW, HHC 3/8-16 X 2-1/2 4 5 12832 WASHER, VIBRATION SNUB 4 6 12831 MOUNT, ENGINE VIBRATION 4 7 10133 NUT, NYLOC 3/8-18 4

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 71

Page 72

ENGINE AIR CLEANER/RADIATOR ASSY.

NOTES:

PART OF NEGATIVE BATTERY CABLE

ITEMS WITHIN DASHED LINE (EXCEPT ITEM 7) ARE INCLUDED

WITH ENGINE. REFER TO ENGINE PARTS MANUAL.

PAGE 72 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 73

ENGINE AIR CLEANER/RADIATOR ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 10434 CLAMP, 2” HOSE 2 2 12225 HOSE , AIR CLEANER MT 1 3 0948 WASHER, FLAT, 1/4 SAE 8 4 0161 C WASHER, LOCK, 5/16 MED. 6 5 0730 SCREW, HHC 1/4-20 X 1 2 6 12464 SCREW, HHC M6-1.0 X 16mm 3 7 11900 MOUNT, RADIATOR OVERFLOW 1 8 12102 MOUNT, AIR CLEANER W/A 1 9 19266 BLIND NUT 2 10 12103 CLAMP, 31V AIR CLEANER ASM 1

11 SCREW ..............................................................2................INCLUDED W/RADIATOR

12 12450 GUARD, RADIATOR 1 13 60049 TRIM EDGE 1/32 (62B3-1/32) 1.5FT

14 SCREW ..............................................................2................INCLUDED W/RADIATOR

15 WASHER ...........................................................2................INCLUDED W/RADIATOR

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 73

Page 74

ENGINE MUFFLER ASSY.

MOUNT TO ENGINE

EXHAUST PORT

PAGE 74 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 75

ENGINE MUFFLER ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 20089 MUFFLER, 31V 1 2 12848 EXHAUST FLANGE NUT 4 3 12847 EXHAUST GASKET 1 4 10114 WASHER, EXT. SHKP, #8 2 5 0655 SCREW, HHC 5/16-18 X 3/4 2 6 11819 SCREW, HHC 1/4-20 X 3/4 W/WASH 7

7 12545 PLATE, BELT GUARD SIDE.......................................1................COMET CLUTCH

7 22579 PLATE, BELT GUARD SIDE.......................................1................MULTI-CLUTCH

8 11534 NUT, “U” TYPE, 1/4-20 8 9 0161 C WASHER, LOCK, 5/16 MED. 4 10 1605 SCREW, HHC M8-1.25 X 25mm 4 11 20082 BELT GUARD/MUFFLER SUPPORT W/COMET 1 12 20098 PLATE, BELT GUARD REAR 1 13 20178 HEAT SHIELD, MUFFLER 1

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 75

Page 76

ENGINE CLUTCH ASSY. (OLD STYLE)

NOTES:

TORQUE TO 150 FT. LBS

TORQUE TO 15 FT. LBS. BOLT IS INCLUDED WITH

ENGINE.

COMET CLUTCH

NO LONGER AVAILABLE

PAGE 76 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 77

ENGINE CLUTCH ASSY. (OLD STYLE)

NO. PART NO. PART NAME QTY. REMARKS

1 20138 BELT, CVT-VANGUARD COMET ...........................2................ORDER 2 BELTS FOR SPARES

7 3911758 ADAPTOR, CLUTCH 31 HP VANGUARD 1 8 20046 SCREW, HHC M8 125 X 25 MM GRADE 10.9 5

9 12878 CLUTCH, CVT 1-7/16 COMET ..............................1................NO LONGER AVAILABLE

..................................................................................................USE CLUTCH KIT P/N 22581

..................................................................................................TO UPGRADE TO

..................................................................................................MULTI-CLUTCH SYSTEM

10 20215 .415 OD X 21/32 ID X 2-1/16L 1 11 4703 WASHER, LOCK, 5/8 MED 1 12 20057 SCREW, HHC 5/8-18 X4 1 13 23291 TOOL, CLUTCH REMOVAL 1

NOTICE

Multi-Clutch components are not interchangeable with the prior Hoffco Comet drive system. The Hoffco Comet CVT system must be replaced with Multi-Clutch components in the event of a Hoffco Comet clutch failure.

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 77

Page 78

ENGINE CLUTCH ASSY. (NEW STYLE)

MULTI-CLUTCH

UPGRADE

KIT

NOTES:

TORQUE TO 45 FT. LBS

TORQUE TO 34 FT. LBS

PAGE 78 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 79

ENGINE CLUTCH ASSY. (NEW STYLE)

NO. PART NO. PART NAME QTY. REMARKS

1 23377 SCREW, HHC 7/16-20 X 6.5 1 2 23369 WASHER, STEP 7/16 1 3 23363-1 CLUTCH, UPPER, MULTI-CLUTCH 1 4 23365 BELT, CVT CLUTCH 2 5 23368 STUB SHAFT 1 6 22021 SCREW, HEX FLANGE M8 5 7 22581 KIT, HHN CVT REPLACEMENT 1 8 23371 PULLER, MULTI-CLUTCH 1

NOTICE

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 79

Page 80

ENGINE FUEL ASSY.

MOUNT FUEL PUMP TO BACK SIDE OF BATTERY BOX.

NEW

STYLE

FUEL TANK

OLD

STYLE

FUEL

BATTERY

BOX

TANK

FUEL FILTER

LOCATED BEHIND

BATTERY BOX

CARBURETOR

PART OF

ENGINE

FUEL PUMP

LOCATED BEHIND

BATTERY BOX

NOTES:

SECURE TO BATTERY BOX.

PAGE 80 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 81

ENGINE FUEL ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 4514 SCREW, HHC 1/4-20 X 5/8 .............................. 4 .......OLD STYLE COMET CLUTCH

1 1579 SCREW, HHC 1/4-20 X .5 ................................ 4 .......NEW STYLE MULTI-CLUTCH

2 0161 C WASHER, LOCK, 5/16 MED. ........................... 4 .......OLD STYLE COMET CLUTCH

3 0948 WASHER, FLAT, 1/4 SAE ................................ 4 .......OLD STYLE COMET CLUTCH

3 0948 WASHER, FLAT 1/4 SAE ................................ 12 ......NEW STYLE MULTI-CLUTCH

4 11418 FUEL CAP/GAUGE (10.5”) .............................. 1 .......S/N ZA020476761013007 AND BELOW

5 12404 TANK, HNN 5GAL ............................................ 1 .......S/N ZA020476761013007 AND BELOW

6 19633 BUSHING, RUBBER FUEL DAPCO10672 1 7 19661 VALVE , FUEL DRAIN DAPCO 11478 1 8 19473 CLAMP, WORM HOSE, #4 (1/4-5/8) 6 9 60013 HOSE, .25ID RUBBER FUEL LINE 3 10 11984 IN-LINE FUEL FILTER 5/16 1 11 10024 NUT, NYLOC 1/4-20 2 12 0131 A SCREW, HHC 1/4-20 X 3/4 2 13 12497 FUEL PUMP 1

14 0131 A SCREW, HHC 1/4-20 X 3/4 .............................. 4 .......NEW STYLE MULTI-CLUTCH

15 22588 MOUNT, FUEL TANK ....................................... 1 .......NEW STYLE MULTI-CLUTCH

16 10024 NUT, NYLOC 1/4-20 ......................................... 4 .......NEW STYLE MULTI-CLUTCH

17 19266 NUT, BLIND 1/4-20 X 10GA 4

18 22077 TANK,FUEL W/A-5 GAL EPA/CARB ................ 1 .......S/N ZA020476761013008 AND ABOVE

19 22205 RACHET CAP, TOP VENT ...............................1 .......S/N ZA020476761013008 AND ABOVE

20 22081 SHUTOFF VALVE, 1/4 NPT, 1/4 HOSE ............ 1 .......S/N ZA020476761013008 AND ABOVE

21 16185 FITTING, PLUG 1/4MP SQ HD ........................ 1 .......S/N ZA020476761013008 AND ABOVE

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 81

Page 82

DRIVE ASSY. (OLD STYLE)

RIGHT SIDE

TORQUE TO 12 FT-LBS.

LEFT SIDE

PAGE 82 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 83

DRIVE ASSY. (OLD STYLE)

NO. PART NO. PART NAME QTY. REMARKS

1 #@$ 2043 SHAFT, CV JOINT BRT, 9-5/8 LONG 1 2%#@$ 2259 BOOT, C.V. JOINT 4 3 # 10909 KEY, 3/16 X 11/16 1 4 #@$ 0126 KEY, WOODRUFF #9 4 5 #@$ 2090 RING, SNAP TRUARC #5100- 106 4 6 # 1146 SCREW, FHSC 5/16- 18 X 1 NYLOC 2 7 # 2037 WASHER, RETAINING 2 8 # 2029 COUPLER, 1 ID. RIDER 1 9 # 10337 BEARING, PILLOW BLOCK FAF YAK- 1 2 10 # 20044 SPACER, BEARING SHAFT 1 11 # 2186 SCREW, SHC 5/16-18 X 2-1/4 PLTD 9 12 # 0161 C WASHER, LOCK, 5/16 MEDIUM 12 13 # 20350 PULLEY, CVT LOWER 1 14 # 20043 SHAFT, DRIVE BEARING 1 15 # 20116 O-RING, SIZE- 031 BUNA N 1 16 # 20184 SHAFT, CV JOINT, HHN 7-13/16 LONG 1 17 # 12590 COUPLER, CV JOINT COMET CLUTCH 1 18 # 20056 SCREW, HHC 1/4- 28 X 3/4 GRD. 8 3

19 #@$ 2052 JOINT, CV W/BOOT ...........................................4................INCLUDES ITEM W/%

20 #@$ 11108 GASKET, CV JOINT BOOT 4 21 #@$ 60103 TIE WRAP, .312 X 8L X .082 THICK 4 22 # 0243 SCREW, SHC 5/16- 18 X 1-3/4 3 23 # 10136 WASHER, FLAT 3/8 SAE 4 24 # 10133 NUT, NYLOC 3/8 - 16 4 25 # 20186 PLATE, BEARING MOUNT 2

26 23449 DRIVE ASSY., W/ COMET TD ...........................1................INCLUDES ITEMS W/#

27# 23450 CV JOINT ASSY, RH .........................................1................INCLUDES ITEMS W/@

28# 23451 CV JOINT ASSY, LH ..........................................1................INCLUDES ITEMS W/$

NOTICE

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 83

Page 84

DRIVE ASSY. (NEW STYLE)

RIGHT SIDE

TORQUE TO 10 FT-LBS.

NEW STYLE DRIVE ASSEMBLY

MUST BE INSTALLED PER INSTRUCTION SHEET, P/N 23444, INCLUDED WITH MULTI-CLUTCH UPGRADE KIT

LEFT SIDE

PAGE 84 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 85

DRIVE ASSY. (NEW STYLE)

NO. PART NO. PART NAME QTY. REMARKS

1@$ 2043 SHAFT, CV JOINT BRT, 9-5/8 LONG 1 2+@$ 2259 BOOT, C.V. JOINT 4 3 10909 KEY, 3/16 X 11/16 1 4@$ 0126 KEY, WOODRUFF #9 4 5@$ 2090 RING, SNAP TRUARC #5100- 106 4 6 1146 SCREW, FHSC 5/16- 18 X 1 NYLOC 1 7 2037 WASHER, RETAINING 2 8 2029 COUPLER, 1 ID. RIDER 1 9 10337 BEARING, PILLOW BLOCK FAF YAK- 1 2 10 23431 SPACER, 1.25DIA X 1.01ID X 4.81 1 11 2186 SCREW, SHC 5/16-18 X 2-1/4 PLTD 9 12 0161 C WASHER, LOCK, 5/16 MEDIUM 12 13 23363-2 PULLEY, CVT DRIVEN LOWER 1 14 23430 SHAFT, DRIVE BEARING 1.00 x 12.5 1 15 20116 O-RING, SIZE- 031 BUNA N 1 16 20184 SHAFT, CV JOINT, HHN 7-13/16 LONG 1 17 23433 COUPLER, CV JOINT CCVT 1 18 9165 SCREW, HHFS 1/4-28 X 3/4 GR5 PATCH 3

19@$ 2052 JOINT, CV W/BOOT ...........................................4................INCLUDES ITEM W/+

20@$ 11108 GASKET, CV JOINT BOOT 4 21@$ 1662 TIE, CABLE TY-RAP 4 22 0243 SCREW, SHC 5/16- 18 X 1-3/4 3 23 10136 WASHER, FLAT 3/8 SAE 4 24 10133 NUT, NYLOC 3/8 - 16 4 25 20186 PLATE, BEARING MOUNT 2

27 23450 CV JOINT ASSY, RH .........................................1................INCLUDES ITEMS W/@

28 23451 CV JOINT ASSY, LH ..........................................1................INCLUDES ITEMS W/$

29 20363 KEY, REC .188 X .25 X 2.5 1 30 9092 SCREW, FHSC 5/8-18X1.25 NYLON 1 31 11773 SHIM, .031" A/R

NOTICE

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 85

Page 86

PART OF ITEM 18 (P/N11431).

APPLY LOCTITE P/N 1477 TO ITEMS

LEFT-SIDE SPIDER ASSEMBLY (5-BLADE).

VIEW FROM OPERATORS SEAT.

SPIDER ASSY. (LEFT)

NOTES:

6, 14, AND 16.

TORQUE TO 90 FT. LBS.

LEFT-SIDE SPIDER ASSEMBLY P/N 12932 INCLUDES ALL ITEMS

WITHIN OUTLINE.

PAGE 86 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 87

SPIDER ASSY. (LEFT)

NO. PART NO. PART NAME QTY. REMARKS

1 12932 SPIDER ASM, LEFT SIDE (1-1/2) 1 2 2829 ARM, TROWEL EXTENDED 5 3 11903 LEVER, TROWEL ARM LEFT SIDE 5 4 0166 A WASHER, LOCK, 3/8 MED 5 5 1876 NUT, HEX JAM 3/8 5 6 0164 B SCREW, HHC 5 7 9006 PIN, ROLL 5/16 X 2 5 8 11039 BUSHING, ARM 2 PIECE 10 9 9111 SPRING, LEFT TROWEL 5 10 1875 WASHER, INT SHKP 3/8 5 11 1322 SCREW ASSY, ARM RETAINING 5 12 21208 PLATE, SPIDER 5 BLADE (1-1/2 SHAFT) 1 13 1162 A CAP, GREASE ZERK #2 5 14 11602 SCREW, HHC 3/8-16 X 3/8 5 15 1456 NUT, HEX FINISH 3/8 -16 2 16 12097 SCREW, SQHS 3/8-16 X 1-3/4 CONE 8 2 17 11419 PLATE, WEAR 1

18 11431 THRUST COLLAR .............................................1................INCLUDES ITEM W/+

19+ 20426 BUSHING, THRUST COLLAR 1 20 2621 FITTING, GREASE 1 22 12687 KEY, 3/8 X 2 1 23 12779 BEARING, THRUST 6017 2RS W/FLANGE 1 24 0105 SCREW, HHCS 5/16-18 X 11/2" 15 25 0161C LOCK WASHER 5/16" 15

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 87

Page 88

RIGHT-SIDE SPIDER ASSEMBLY (5-BLADE).

VIEW FROM OPERATORS SEAT.

APPLY LOCTITE P/N 1477 TO ITEMS

SPIDER ASSY. (RIGHT)

NOTES:

9, 12, AND 15.

TORQUE TO 90 FT. LBS.

RIGHT-SIDE SPIDER ASSEMBLY P/N 12933 INCLUDES ALL ITEMS

WITHIN OUTLINE.

PART OF ITEM 18 (P/N11431).

PAGE 88 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 89

SPIDER ASSY. (RIGHT)

NO. PART NO. PART NAME QTY. REMARKS

1 12933 SPIDER ASM, RIGHT SIDE (1-1/2) 1 2 2829 ARM, TROWEL EXTENDED 5 3 11904 LEVER, TROWEL ARM RIGHT SIDE 5 4 9006 PIN, ROLL 5/16 X 2 5 5 2143 SPRING, RIGHT TROWEL 5 6 1875 WASHER, INT SHKP 3/8 5 7 1322 SCREW ASSY, ARM RETAINING 5 8 1162 A CAP, GREASE ZERK #2 5 9 11602 SCREW, HHC 3/8-16 X 3/8 5 10 0166 A WASHER, LOCK, 3/8 MED 5 11 1876 NUT, HEX JAM 3/8 5 12 0164 B SCREW, HHC 5 13 11039 BUSHING, ARM 2 PIECE 10 14 21208 PLATE, SPIDER 5 BLADE (1-1/2 SHAFT) 1 15 12097 SCREW, SQHS 3/8-16 X 1-3/4 CONE 8 2 16 1456 NUT, HEX FINISH 3/8 -16 2 17 11419 PLATE, WEAR 1

18 11431 THRUST COLLAR .............................................1................INCLUDES ITEM W/+

19+ 20426 BUSHING, THRUST COLLAR 1 20 2621 FITTING, GREASE 1 22 12687 KEY, 3/8 X 2 1 23 12779 BEARING, THRUST 6017 2RS W/FLANGE 1 24 0105 SCREW, HHCS 5/16-18 X 11/2" 15 25 0161C LOCK WASHER 5/16" 15

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 89

Page 90

STABILIZER RING ASSY.

PAGE 90 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 91

STABILIZER RING ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 0161C LOCK WASHER 5/16" 5 2 1237 SCREW, SCH 5/16-18 X 7/8 5 3 1723 ROD END, 5/16-24 MALE 4 4 6014C NUT, HEX FINISH 5/16-24 8 5 12095 RING, STABILIZER, EXT ARM, HD 1

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 91

Page 92

SEAT AND FRAME ASSY.

DIRECTION OF

SEAT TILT.

NOTES:

INCLUDED WITH ITEM 7.

PAGE 92 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 93

SEAT AND FRAME ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 0183 PIN, COTTER 1/8X1 1/4 2 2 0300 WASHER, FLAT, 5/16 SAE 4 3 10133 NUT, NYLOC 3/8-16 1 4 11286 SEAT, ADJUSTABLE 1 5 11593 SPRING, SEAT 1 6 11660 PLATE, SEAT W/A HHN 1 7 12005 SWITCH, KILL 1 8 12987 FRAME, HNN SEAT W/A VAN 1 9 4001 WASHER, FLAT, 3/8 USS PLD 1 11 5054A WASHER, LOCK, 1/2 MED. 6 12 5218 SCREW, HHC 1/2-13X1 1/2 6 13 5283 NUT, NYLOC 5/16-18 4 14 8081 PIN, CLEVIS 1/2X2 3/4 2 15 8156 SCREW, HHC 3/8-16X2 1/2 1 16 10176 NUT, NYLOC 1/2-13 2 17 3214 SCREW 2

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 93

Page 94

VIEW FROM OPERATOR’S SEAT

FRAME AND COMPONENTS

PAGE 94 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 95

FRAME AND COMPONENTS

NO. PART NO. PART NAME QTY. REMARKS

1 0183 PIN COTTER 3/32X3/4 4 2 0948 WASHER, FLAT, 1/4 SAE 8 3 0448 WASHER, FLAT, 3/8 SAE 4 4 10818 DECAL, MQ WHITEMAN, 23-1/2” 1 5 11223 PANEL, FRONT (HHN) 1 6 11534 NUT “U” TYPE, 1/4-20 6 7 12896 FRAME (HNN-V) 1 8 13118 DECAL, “POWDER COATED” 1 9 2203 WASHER, FLAT, #10 3 10 2411 PLATE, SERIAL, RIDER 1 11 2429 HOLDER, SPARE BELT ALL 1 12 4014 SCREW, 2-3/16 P-K TYPE U DRIVE 2 13 4514 SCREW, HHC 1/4-20X5/8 8 14 5065B SCREW, RHM 10-32X1/2 1 15 8126 CLAMP, HOSE SUPPORT 1/2” SMALL 2 16 11499 YOKE, HTO/HTN-V 2 17 11648 PIN, YOKE 2

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 95

Page 96

FOOT PEDALS ASSY.

VIEW FROM OPERATOR’S SEAT

PAGE 96 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 97

FOOT PEDALS ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 0202 SCREW, HHC 5/16-18X1 4 2 0300B WASHER, FLAT, 5/16 SAE 4 3 10136 WASHER, FLAT, 3/8 SAE 2 4 2086 PEDAL, ACCELERATOR 1 5 2772 PIN, ACC MOUNT 1 6 5283 NUT, NYLOC 5/16-18 4 7 6014B PIN, COTTER 3/32X1 2 8 12985 LEFT SIDE FOOT REST 1 9 12986 RIGHT SIDE FOOT REST 1 10 3233 WASHER, FENDER, 1.5ODX3/8ID 4 11 3083 SPACER 1

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 97

Page 98

THROTTLE BRACKET

(PART OF ENGINE)

THROTTLE FOOT PEDAL ASSY.

NOTES:

PART OF THROTTLE CABLE ASSY.

PAGE 98 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

Page 99

THROTTLE FOOT PEDAL ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 0937 NUT, HEX 10-32 3 2 10018 SCREW, SHC 10-32X1 NO PLATE 1 3 10019 NUT, NYLOC 10-32 1 4 2153 ROD END, 10-32 FEMALE RH 1 5 2203 WASHER, FLAT, #10 2 6 2753 SPRING, THROTTLE RETURN, LOWER 1 7 2754 ADAPTOR, THROTTLE RET. SPRING LG. 1 8 2755 ADAPTOR, THROTTLE RET. SPRING SHOR 1 9 2124 CABLE, THROTTLE (RT) 1 10 8133 SCREW, RHM 10-32 X 3/4 1 11 2203 WASHER, FLAT #10 1 12 11710 SPACER, ENGINE THROTTLE 1 13 0300 B WASHER, FLAT, 5/16 SAE 1 14 2153 ROD END, 10-32 FEMALE RH 1 15 10237 WASHER, EXT. SHKP, 5/16? 4 16 11771 BRACKET, ENGINE THROTTLE CABLE 1

HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12) — PAGE 99

Page 100

STARTER

SEE SPRAY ASSEMBLY

BATTERY ASSY.

RED CABLE (POSITIVE)

BATTERY

BLACK CABLE (NEGATIVE)

CONNECT TO ENGINE GROUND

PAGE 100 — HHN31VTCSL5 RIDE-ON TROWEL • OPERATION AND PARTS MANUAL — REV. #8 (05/03/12)

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