MULTIQUIP HPHA36C5H Guide

OPERATION AND PARTS MANUAL
P/N 21652
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALLTIMES.
To find the latest revision of this
publication, visit our website at:
www.multiquip.com
HPHA36C5H
WALK-BEHIND TROWEL
Revision #3 (07/06/10)

Engine exhaust and some of
its constituents, and some dust created
of California to cause cancer, birth
defects and other reproductive harm.
by power sanding, sawing, grinding,
drillingandotherconstructionactivities
contains chemicals known to the State
Some examples of these chemicals are:
Leadfromlead-basedpaints.
Crystallinesilicafrombricks.
Cementandothermasonryproducts.
Arsenicandchromiumfromchemically
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.

HPHA36C5H WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #3 (07/06/10) — PAGE 3

PAGE 4 — HPHA36C5H WALK-BEHINDTROWEL— OPERATION AND PARTS MANUAL — REV. #3 (07/06/10)
HPHA36C5H TROWEL— TABLE OF CONTENTS
Specification and part number
are subject to change without
notice.
NOTE
HONDA GX160K1QX2 ENGINE
Air Cleaner Asssembly ....................................... 62-63
Camshaft Asssembly ......................................... 64-65
Carburetor Asssembly ....................................... 66-67
Control Asssembly ............................................. 68-69
Crankcase Cover Asssembly ............................. 70-71
Crankshaft Asssembly ....................................... 72-73
Cylinder Barrel Asssembly ................................. 74-75
Cylinder Head Asssembly .................................. 76-77
Fan Cover Asssembly ........................................ 78-79
Flywheel Asssembly ........................................... 80-81
Fuel Tank Asssembly ......................................... 82-83
Ignition Coil Asssembly ...................................... 84-85
Label Asssembly ................................................ 86-87
Muffler Asssembly .............................................. 88-89
Piston Rings Asssembly ..................................... 90-91
Recoil Starter Asssembly ................................... 92-93
MQ - HPHA36C5H TROWEL
Here's How To Get Help ............................................ 3
Table Of Contents ..................................................... 4
Training Checklist ...................................................... 6
Daily Pre-Operation Checklist ................................... 7
Safety Message Alert Symbols .............................. 8-9
Rules For Safe Operation .................................. 10-11
Operation And Safety Decals .................................. 12
General Information ................................................ 13
Specifications (Trowel) ............................................ 14
Specifications (Engine) ........................................... 15
Controls and Components ................................. 16-17
Basic Engine ........................................................... 18
Assembly and Installation .................................. 19-21
Pre-Inspection .................................................... 22-23
Initial Start-Up .................................................... 24-25
Operation ........................................................... 26-27
Options ............................................................... 28-29
Maintenance ...................................................... 30-34
Troubleshooting (Trowel) ................................... 35-36
Troubleshooting (Engine) ........................................ 37
Explanation of Codes .............................................. 38
Suggested Spare Parts ........................................... 39
Nameplate and Decals....................................... 40-41
Standard Handle Assembly ............................... 42-43
Quick Pitch™ Handle Assembly....................... 44-46
4-Blade Spider Assembly ................................... 48-49
Gearbox & Engine Mounts Assembly ............... 50-52
Engine, 5.5HP Honda Assembly ....................... 54-55
Guard Ring Assembly ....................................... 56-57
Blades and Arm Adj. Fixture Assembly .............. 58-59
Lifting Bail Assembly (Option) ............................ 60-61

HPHA36C5H WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #3 (07/06/10) — PAGE 5
NOTE PAGE

PAGE 6 — HPHA36C5H WALK-BEHINDTROWEL— OPERATION AND PARTS MANUAL — REV. #3 (07/06/10)
HPHA36C5HTROWEL—TRAINING CHECKLIST
TRAINING CHECKLIST
This checklist will lists some of the minimum requirements for
machine maintenance and operation. Please feel free to detach
it and make copies. Use this checklist whenever a new operator
is to be trained or it can be used as a review for more experienced
operator’s.
Operator _________________________________________ Trainee __________________________________________
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HPHA36C5H WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #3 (07/06/10) — PAGE 7
HPHA36C5HTROWEL— DAILY PRE-OPERATION CHECKLIST
DAILY PRE-OPERATION CHECKLIST
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PAGE 8 — HPHA36C5H WALK-BEHINDTROWEL— OPERATION AND PARTS MANUAL — REV. #3 (07/06/10)
HPHA36C5H TROWEL- SAFETY MESSAGE ALERT SYMBOLS
Safety precautions should be followed at all times when operating
this equipment. Failure to read and understand and comply with
the Safety Messages and Operating Instructions could result in
injury to yourself and others.
FOR YOUR SAFETY AND THE SAFETY OF OTHERS!
This Owner's Manual has been
developed to provide complete
instructions for the safe and
efficient operation of the MQ
HPHA36C5H TROWEL. For
engine maintenance information,
please refer to the engine
manufacturers instructions for
data relative to its safe operation.
Before using this WALK-BEHIND TROWEL, ensure that the
operating individual has read and understands all
instructions in this manual.
HAZARD SYMBOLS
Engine exhaust gases contain poisonous
carbon monoxide. This gas is colorless and
odorless, and can cause death if inhaled.
NEVER operate this equipment in a confined
area or enclosed structure that does not
provide ample free flow air.
Gasoline is extremely flammable, and its
vapors can cause an explosion if ignited. DO
NOT start the engine near spilled fuel or
combustible fluids. DO NOT fill the fuel tank
while the engine is running or hot. DO NOT
overfill tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or
sparks from the ignition system. Store fuel in
approved containers, in well-ventilated areas
and away from sparks and flames. NEVER
use fuel as a cleaning agent.
Burn Hazards
Engine components can generate extreme heat.
To prevent burns, DO NOT touch these areas
while the engine is running or immediately after
operations. NEVER operate the engine with
heat shields or heat guards removed.
Rotating Parts
NEVER operate equipment with covers, or
guards removed. Keep
fingers, hands , hair
and clothing away from all moving parts to
prevent injury.
Explosive Fuel
NOTE
SAFETY MESSAGE ALERT SYMBOLS
The three (3) Safety Messages shown below will inform you
about potential hazards that could injure you or others. The
Safety Messages specifically address the level of exposure to
the operator, and are preceded by one of three words: DANGER,
WARNING, or CAUTION.
You WILL be
KILLED or SERIOUSLY INJURED
if you DO NOT follow these directions.
You CAN be KILLED or
SERIOUSLY INJURED if
you DO NOT follow these directions.
You CAN be
INJURED if you DO NOT follow
these directions.
CAUTICAUTI
CAUTICAUTI
CAUTION
DANGERDANGER
DANGERDANGER
DANGER
WARNINGWARNING
WARNINGWARNING
WARNING
Potential hazards associated with HPHA36C5H TROWEL
operation will be referenced with Hazard Symbols which appear
throughout this manual, and will be referenced in conjunction
with Safety Message Alert Symbols.
Lethal Exhaust Gases

HPHA36C5H WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #3 (07/06/10) — PAGE 9
HPHA36C5H TROWEL- SAFETY MESSAGE ALERT SYMBOLS
Accidental Starting
ALWAYS place the engine ON/OFF
switch in the OFF position, when the
trowel is not in use.
Over Speed Conditions
NEVER tamper with the factory settings of the
engine governor or settings. Personal injury
and damage to the engine or equipment can
result if operating in speed ranges above
maximum allowable.
Respiratory Hazard
ALWAYS wear approved respiratory protection.
ALWAYS wear approved eye and hearing
protection.
Sight and Hearing hazard
Equipment Damage Messages
Other important messages are provided throughout this manual
to help prevent damage to your trowel, other property, or the
surrounding environment.
This walk-behind trowel, other property, or the
surrounding environment could be damaged
if you do not follow instructions.
CAUTICAUTI
CAUTICAUTI
CAUTION

PAGE 10 — HPHA36C5H WALK-BEHINDTROWEL— OPERATION AND PARTS MANUAL — REV. #3 (07/06/10)
HPHA36C5HTROWEL— RULES FOR SAFE OPERATION
The following safety guidelines should always be used when
operating the HPHA36C5H Trowel.
SAFETY
■ DO NOT operate or service this equipment
before reading this entire manual. The
manual must be kept available and accessible
to the operator.
■ This equipment should not be operated by persons under the
minimum statutory age limit.
■ ALWAYS use extreme caution when working with flammable
liquids. When refueling, STOP the engine and allow it to cool.
■ NEVER touch the hot exhaust manifold, muffler
or cylinder. Allow these parts to cool before
servicing the trowel.
■ The engine of this trowel requires an adequate free flow of
cooling air. NEVER operate the trowel in any enclosed or
narrow area where free flow
of the air is restricted. If the
air flow is restricted it will
cause serious damage to
the engine and may cause
injury to people. Remember
the engine gives off
DEADLY carbon monoxide
gas.
■ HighTemperatures – Allow the engine to cool before adding
fuel or performing service and maintenance functions. Contact
with
hot! components can cause serious burns.
■ ALWAYS refuel in a well-ventilated area, away from sparks
and open flames.
RULES FOR SAFE OPERATION
■ ALWAYS check the trowel for loosened hardware such as
nuts and bolts before starting.
■ Replace nameplate, operation and safety decals when they
become difficult to read.
■ NEVER use accessories or attachments which are not
recommended by Multiquip for this equipment. Damage to
the equipment and/or injury to user may result.
■ Manufacturer does not assume responsibility for any accident
due to equipment modifications. Unauthorized equipment
modification will void all warranties. Any modification which
could lead to a change in the original characteristics of the
machine should be made only by the manufacturer who shall
confirm that the machine is in conformity with appropriate
safety regulations.
WARNINGWARNING
WARNINGWARNING
WARNING
Failure to follow instructions in this manual may lead to serious
injury or even death! This equipment is to be operated by
trained and qualified personnel only! This equipment is for
industrial use only.
■ NEVER smoke around or near the machine.
Fire or explosion could result from
fuel
vapors
, or if fuel is spilled on a hot! engine.
■ Topping-off to filler port is dangerous, as it tends to spill fuel.
■ NEVER use fuel as a cleaning agent.
■ NEVER operate this equipment when not feeling well due to
fatigue, illness or taking medicine.
■ NEVER operate the trowel under the influence or drugs or
alcohol.
■ NEVER operate the trowel without proper protective clothing,
shatterproof glasses, steel-toed boots and other protective
devices required for the job.
■ NEVER use this machine for any purpose other than those
described in this manual.
■ NEVER operate the trowel in an
explosive atmosphere where fumes
are present, or near combustible
materials. An explosion or fire could
result in severe
bodily harm or even
death.

HPHA36C5H WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #3 (07/06/10) — PAGE 11
HPHA36C5HTROWEL— RULES FOR SAFE OPERATION
■ NEVER Run engine without air filter. Severe engine damage
may occur. Service air filter frequently to prevent carburetor
malfunction.
■ NEVER place your feet or hands inside the guard rings
while starting or operating this equipment.
■ AVOID wearing jewelry or loose fitting clothing that may snag
on the controls or moving parts as this can cause a serious
injury.
■ ALWAYS keep clear of rotating or moving parts while
operating the trowel.
■ Moving Parts – Shut down the engine before performing
service or maintenance functions. Contact with moving parts
can cause serious injury.
■ ALWAYS check to make sure that the operating area is clear
before starting the engine.
■ NEVER leave the machine unattended while running.
■ ALWAYS be sure the operator is familiar with proper safety
precautions and operations techniques before using trowel.
■ ALWAYS keep the work area well organized.
■ ALWAYS clear the work area of any debris, tools, etc. that
would constitute a hazard while the trowel is in operation.
■ ALWAYS know the location of
the nearest
fire extinguisher .
■ ALWAYS know the location of the
nearest
first aid kit .
■ In emergencies always know the location of the
nearest phone or
keep a phone on the job site .
Also know the phone numbers of the nearest
ambulance , doctor and fire department . This
information is invaluable in the case of an
emergency and could keep a serious situation from
becoming a tragic one .
Maintenance Safety
■ NEVER lubricate components or attempt service on a running
trowel.
■ ALWAYS allow the trowel a proper amount of time to cool
before servicing.
■ Keep the trowel in proper running condition.
■ Fix damage to the trowel immediately and always replace
broken parts.
■ Dispose of hazardous waste properly.Examples of potentially
hazardous waste are used motor oil, fuel and fuel filters.
■ DO NOT use food or plastic containers to dispose of
hazardous waste.
■ ALWAYS shutdown engine before transporting.
■ Tighten fuel tank cap securely and close fuel cock to prevent
fuel from spilling.
■ Drain fuel when transporting trowel over long distances or
bad roads.
Transporting
■ ALWAYS store equipment properly when it is not being used.
Equipment should be stored in a clean, dry location out of the
reach of children.
■ No one other than the operator is to be in the working area
when the trowel is in operation.
■ Always observe all applicable compulsory regulations
relevant to environmental protection, especially, fuel storage,
the handling of hazardous substances, and the wearing of
protective clothing and equipment. Instruct the user as
necessary, or, as the user, request this information and
training.
Emergencies
■ When placing the trowel inside a truck-bed for transport,
always tie-down the trowel.
■ ALWAYS use proper lifting techniques when moving the
trowel.
ALWAYS check to make sure that the operating area is
clear before starting the engine.
WARNINGWARNING
WARNINGWARNING
WARNING

PAGE 12 — HPHA36C5H WALK-BEHINDTROWEL— OPERATION AND PARTS MANUAL — REV. #3 (07/06/10)
HPHA36C5HTROWEL— OPERATION AND SAFETY DECALS
Figure 1. HPHA36C5H Trowel Decals
P/N 20526
Q
U
I
C
K
P
I
T
C
H
P/N 20815
P/N 20814
FINISH JCOMBO
PRELOAD TRIM INDICATOR
FINISH BCOMBO
P/N 1735
Symbol indicates that it is mandatory to wear
safety glasses, safety helmet and ear protection.
Symbol indicates that it is mandatory to
wear safety shoes, with extra protection
(steel toed).
This is the symbol for belt drive.
This is the symbol for gear drive.
Radiating heat symbol. Symbol indicates equipment
is hot.
Symbol for examining or checking of the machine.
Mostly used for maintenance. Check lubrication
oil in gearbox.
Symbol indicates that it is mandatory to wear
gloves.
P/N 11247 (Part of decal kit 12620)
P/N 11247 (Part of decal kit 12620)
P/N 11247 (Part of decal kit 12620)
P/N 11246 (Part of decal kit 12620)
P/N 11246 (Part of decal kit 12620)
P/N 11246 (Part of decal kit 12620)
P/N 11246 (Part of decal kit 12620)
CONTACT MULTIQUIP
SERVICE DEPT.
NAMEPLATE
DO NOT OPERATE HANDLE UNTIL IT IS
SECURELY FASTENED TO POWER TROWEL
& INSTRUCTIONS HAVE BEEN READ
INJURY COULD RESULT IF FINISHER IS LIFTED
WITHOUT PITCH HANDLE FIRMLY ENGAGE
WARNING!
WARNING!
DO NOT LIFT MACHINERY BY GUARD
RING. MAY CAUSE DAMAGE TO
GUARD RING SHOCK MOUNTS
USE LIFT HANDLES ONLY
CAUTION
P/N 1261
P/N 20527
P
O
W
E
R
T
R
O
W
E
L
P/N 1736
P/N 20816
P/N 20820
OPERATION AND SAFETY DECALS
The HPHA36C5H walk-behind trowel is equipped with a number of operation, safety and maintenance decals. Should any of these
decals become unreadable, replacements can be obtained from your dealer.

HPHA36C5H WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #3 (07/06/10) — PAGE 13
HPHA36C5HTROWEL— GENERAL INFORMATION
Trowel Familiarization
This walk-behind trowel is designed for
floating and finishing
concrete slabs.
Take a walk around the trowel. Take notice of all the major
components (see Figure 2) like the engine, blades, Quick Pitch™
handle, etc. Check to ensure there is always oil in the engine.
Read all the safety instructions carefully. Safety instructions will
be found throughout this manual and on the trowel. Keep all
safety information in good, readable condition. Operators should
be well trained on the operation and maintenance of the trowel.
Before using your trowel, test it on a flat watered down section of
finished concrete that is free of any debris and other objects.
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. In addition you will understand how the trowel handles
under actual conditions.
Engine
This trowel is available with a 5.5 HP
HONDA gasoline engine.
Refer to the engine owner’s manual for instructions regarding
the operation and maintenance of your engine. Please contact
your nearest Multiquip Dealer for a replacement should the
original manual disappear or otherwise become unusable.
Blades
The blades of the trowel finish the concrete as they are rotated
around the surface. This trowel comes equipped with four
combination blades per rotor equally spaced in a radial
pattern and attached to vertical rotating shaft by means of a
spider assembly.
Drive System
Power is transferred from the engine to the gearbox input shaft
via a V-belt pulley drive system. The pulley engages using a
centrifugal clutch.
Gearbox
The
gearbox is located beneath the engine and transfers power
to the
spider assembly.The gearbox controls the rotational speed
of the trowel and is equipped with two shafts (input and output).
Operate the HPHA36C5H Trowel, tools and components in
accordance with the manufacturer's instructions. Use of any
other tools for stated operation is considered contrary to
designated use. The risk of such use lies entirely with the user.
The manufacturer cannot be held liable for damages as a result
of misuse.
Intended Use
Spider
The vertical output shaft of the gearbox connects to a cast hub
called the
spider . The spider has 4 arms that extend outward
that are used for attachment of blades or other accessories.
Remember as the gearbox output shaft rotates so does the spider
assembly.
Centrifugal Stop Switch
In the event of a trowel runaway condition (operator releases
the handle), a
centrifugal stop switch will stop the engine
and bring the trowel to a halt.
Moving the HPHA36C5H Walk-Behind Trowel
CAUTIONCAUTION
CAUTIONCAUTION
CAUTION
NEVER attempt to lift the trowel by yourself. ALWAYS get
the assistance of another person to help lift the trowel .
This walk-behind trowel is designed to be moved and handled
in several ways. The easiest way to lift the trowel is to use the
auxiliary lifting tube that is attached to the main handle. See
page 24. When using the auxiliary tube, always use
two
persons
to lift the trowel.
Some models have a
lifting bail (option) installed. A strap or
chain can be attached to the lifting bail, allowing a crane to lift
the trowel up onto a slab of concrete. Use a lifting device of
adequate lifting capacity to lift the trowel.
Training
For proper training, please use the “TRAINING CHECKLIST”
located in the front of this manual (Page 6). This checklist will
provide an outline for an experienced operator to provide training
to a new operator.

PAGE 14 — HPHA36C5H WALK-BEHINDTROWEL— OPERATION AND PARTS MANUAL — REV. #3 (07/06/10)
HPHA36C5HTROWEL— SPECIFICATIONS (TROWEL)
NOTE:
1. Sound pressure is a weighted measure. Measured at the
operators ear position while the walk-behind trowel is
operating at full throttle on concrete in a manner most often
experienced in “
normal ” circumstances. Sound pressure
may vary depending upon the condition of the concrete.
Hearing protection is always recommended.
Figure 2. HPHA36C5H Trowel Dimensions
2. The vibration level indicated is the maximum RMS (Root
Mean Square) value obtained at the handle grip while
operating the walk-behind trowel on curing concrete in a
manner most often experienced in “
normal ” circumstances.
Values were obtained from all three axes of motion. The
values shown represent the maximum RMS value from
these measurements.
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HPHA36C5H WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #3 (07/06/10) — PAGE 15
HPHA36C5HTROWEL— SPECIFICATIONS (ENGINE)
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PAGE 16 — HPHA36C5H WALK-BEHINDTROWEL— OPERATION AND PARTS MANUAL — REV. #3 (07/06/10)
HPHA36C5HTROWEL— CONTROLS AND COMPONENTS
Figure 3. HPHA36C5H Walk-Behind Trowels

HPHA36C5H WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #3 (07/06/10) — PAGE 17
(Figures 3) shows the location of the basic controls or
components, for the HPHA36C5H trowel. Listed below is a brief
explanation of each control or component
1. Quick Pitch™ Control Handle – To adjust the pitch of
the blades, grasp the handle then squeeze and move the
handle forward or backward to achieve the desired blade
pitch.
2. Handlebar Adjuster – Change the angle/height of the
handle bars by loosening the star wheel, adjust handlebars
to desired location, tighten the starwheel firmly to hold the
handlebars in that position.
3. Hand Grip/Handle Bar – When operating the trowel, place
both hands on each grip to maneuver the trowel. Replace
hand grips when they become worn or damaged.
4. Throttle Control Lever – Operator control for the speed
of the engine. Push the hand grip away from the operator to
increase engine speed (high), pull toward the operator to
decrease engine speed (low or idle).
5. Engine – This trowel is powered by a Honda GX160, 5.5
HP, air-cooled, 4-stroke gasoline engine
6. V-Belt Cover – Remove this cover to gain access to the V-
belt. NEVER operate the trowel with this cover removed.
7. Centrifugal Safety Stop Switch – In the event the operator
loses control of the trowel, this switch will shut-down the
engine.
8. Auxiliary LiftingTube - Use this tube to lift the trowel onto
a slab.Tube is to be inserted into socket located in front of
the gearbox.
9. Trowel Arm – Rigid hexagonal rod the blades are attached
to. NEVER operate the trowel with a bent, broken or out of
adjustment trowel arm. If the blades show uneven wear
patterns or some blades wear out faster than others, the
trowel arm may need to be adjusted. Use the trowel arm
adjustment tool P/N 1817 to adjust the trowel arms.
10. Trowel Lifting Point – Insert the auxiliary lifting tube here.
See page 24.
11. Pitch Control (standard models) - Turn this "Star Wheel"
clockwise to increase blade pitch, and counter-clockwise
to decrease blade pitch.
12. Blades – This trowel is equipped with combination blades.
These blades are versatile and should take care of most
troweling needs. In addition float discs can be attached to
the trowel arms that will allow the trowel to float on "wet"
concrete.
14. Guard Ring –NEVER put hands or feet inside guard ring.
HPHA36C5HTROWEL— CONTROLS AND COMPONENTS
CAUTIONCAUTION
CAUTIONCAUTION
CAUTION
Tube is spring-loaded, severe injury could result if not
disassembled correctly.
13. MainTube - When disassembling components inside the
tube exercise extreme CAUTION!

PAGE 18 — HPHA36C5H WALK-BEHINDTROWEL— OPERATION AND PARTS MANUAL — REV. #3 (07/06/10)
Figure 4. Engine Controls and Components
HPHA36C5HTROWEL— BASIC ENGINE
INITIAL SERVICING
The engine (Figure 4) must be checked for proper lubrication and
filled with fuel prior to operation. Refer to the manufacturer's engine
manual for instructions & details of operation and servicing. The
engine shown above is a HONDA engine.
1. Fuel Filler Cap – Remove this cap to add unleaded
gasoline to the fuel tank. Make sure cap is tightened
securely. DO NOT over fill.
DANGER
2. Throttle Lever – Used to adjust engine RPM speed.
3. Engine ON/OFF Switch –
ON position permits engine
starting,
OFF position stops engine operation.
4. Recoil Starter (pull rope) – Manual-starting method. Pull
the starter grip until resistance is felt, then pull briskly and
smoothly.
7. Air Cleaner – Prevents dirt and other debris from entering
the fuel system. Remove wing-nut on top of air filter
cannister to gain access to filter element.
Operating the engine without an air
filter, with a damaged air filter, or a
filter in need of replacement will
allow dirt to enter the engine, causing
rapid engine wear.
11. Oil Drain Plug – Remove this plug to remove oil from the
engine's crankcase.
12. Dipstick/Oil Filler Cap – Remove this cap to determine if
the engine oil is low. Add oil through this filler port as
recommended in Table 3.
6. Choke Lever – Used in the starting of a cold engine, or in
cold weather conditions. The choke enriches the fuel/air
mixture.
10. Fuel Tank – Holds unleaded gasoline. For additional
information refer to engine owner's manual.
9. Muffler – Used to reduce noise and emissions.
8. Spark Plug – Provides spark to the ignition system. Set
spark plug gap according to engine manufacturer's
instructions.
NOTE
Adding fuel to the tank should be done only
when the engine is stopped and has had an
opportunity to cool down. In the event of a fuel
spill, DO NOT attempt to start the engine until
the fuel residue has been completely wiped
up, and the area surrounding the engine is dry.
5. Fuel Valve Lever – OPEN to let fuel flow, CLOSE to stop
the flow of fuel.

HPHA36C5H WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #3 (07/06/10) — PAGE 19
HPHA36C5HTROWEL — ASSEMBLY AND INSTALLATION
Assembly and Installation
Before the trowel can be put into operation, there are some
components that must be installed.This section provides general
instructions on how to install those components. Instruction sheet
P/N 20485 provides further details for the handle assembly.
HandleTube Installation (All Models)
1. Install the
handle tube to the gearbox as shown in (Figure 5).
The mounting hardware should be contained in the shipping
container with the handle.
Figure 5. Handle Tube Installation
2. On Quick-Pitch™ models, pivot the
pitch handle back
(full pitch) (Figure 6). This will relax the spring inside the
handle tube. On either model, spread the handle bar ends
just enough to engage the teeth on the handle tube. Attach
the hand wheel assembly, position handlebar to desired
location, and tighten hand wheel firmly.
Figure 6. Handlebar Installation
2. Feed the throttle cable through the cable housing.
3. Connect the throttle cable to the engine. (Figure 8). There
should be a piece of wire installed on the trowel to show
where to route the throttle cable. When connecting the cable
housing, make sure that no more than
1/4" (6.4mm) of the
cable housing protrudes past the housing clamp on the
engine.
Figure 8. Throttle Cable Connection
Figure 7. Throttle
Throttle Cable Installation
1. Place the throttle lever (Figure 7) to the idle position.
Considerable force may be
required when moving the Quick-
Pitch™pitch handle forward or
backward.
NOTE
The Quick-Pitch™ handle is spring loaded, personal injury
or damage could result from improper handling or
installation. Be careful when installing this component.
CAUTIONCAUTION
CAUTIONCAUTION
CAUTION
CABLE HOUSING
ENGINE
THROTTLE
LEVER
SWIVEL STOP
SCREW
THROTTLE
CABLE END
CABLE
HOUSING
CLAMP

PAGE 20 — HPHA36C5H WALK-BEHINDTROWEL— OPERATION AND PARTS MANUAL — REV. #3 (07/06/10)
2. Lock the spring in the compressed position, by releasing
the blade pitch adjustment trigger, (Quick-Pitch™ model).
3. Remove one brass set nut from the blade pitch cable end
as shown in (Figure 13).
4. Thread the second brass set nut towards the cable as far
as possible.
HPHA36C5HTROWEL — ASSEMBLY AND INSTALLATION
Safety Stop SwitchWire
Locate the
safety stop switch wire protruding from the handle
tube (Figure10) and connect it to the
tail wire on the engine.
Test the safety stop switch to insure proper operation.
Figure 10. Engine Safety Stop Wire Connection
Figure 11. "No Pitch" Position (Standard)
Figure 12. "No Pitch" Position (Quick-Pitch™)
1. Expose the pitch cable to maximum by adjusting the handle
pitch to the "no pitch" position. On the standard model turn
the pitch control counter-clockwise, (Figure 11). On the
Quick-Pitch™ model, pivot the pitch handle forward or no
pitch, (Figure 12).
7. These are general instructions. Installation of the throttle
cable may vary for different engine configurations. Please
look for more detailed instructions inside the box containing
the handle.These more detailed instructions should provide
adequate guidance for installation.
4. Tighten cable clamp screw and swivel stop screw.
5. After the cable has been installed on the engine, adjust
and tighten operator position of the handle to lock the
throttle cable at the proper length.
6. Adjust cable tension loosening the lock nut on the throttle
cable receiver (Figure 9), loosening or tightening the
adjuster nut below it, then retightening the lock nut.
Pitch Cable Installation
Figure 9. Throttle Adjust