Multiquip hda User Manual
OPERATION AND PARTS MANUAL
HDA-SERIES
WALK-BEHIND TROWEL
Revision #9 (07/02/10)
To find the latest revision of this
publication, visit our website at:
www.multiquip.com
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
P/N 20920
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 — HDA-SERIES WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #9 (07/02/10)
NOTES
HDA-SERIES WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #9 (07/02/10) — PAGE 3
TABLE OF CONTENTS
HDA-Series
Walk-Behind Trowel
Proposition 65 Warning ........................................... 2
Table Of Contents ................................................... 4
Parts Ordering Procedures ..................................... 5
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
Specifications (Trowel) .......................................... 13
Specifications (Engines)........................................ 14
General Information .............................................. 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
Component Drawings
Nameplate And Decals .................................... 40-41
Standard Handle Assembly (Old Style) ........... 42-43
Standard Handle Assembly (New Style) .......... 44-45
Quick-Pitch™ Handle Assembly (Old Style) ... 46-49
Quick-Pitch™ Handle Assembly (New Style) .. 50-51
4-Blade Spider Assembly ................................. 52-53
Gearbox & Engine Mounts Assembly .............. 54-55
Engine, 11 Hp Honda Assembly ...................... 56-57
Engine, 13 Hp Honda Assembly ..................... 58-59
Guard Ring Assembly ...................................... 60-61
Stabilizer Ring Assembly ................................. 62-63
Blades & Arm Adj. Fixture Assembly (Options) 64-65
Lifting Bail Assembly (Option) ......................... 66-67
Honda GX340K1QA2 Engine
Air Cleaner Assembly....................................... 68-69
Camshaft Assembly ......................................... 70-71
Piston Assembly ............................................... 72-73
Crankcase Cover Assembly ............................. 74-75
Crankshaft Assembly ....................................... 76-77
Cylinder Barrel Assembly ................................. 78-79
Cylinder Head Assembly .................................. 80-81
Fan Cover Assembly ........................................ 82-83
Flywheel Assembly .......................................... 84-85
Fuel Tank Assembly ......................................... 86-87
Ignition Coil Assembly ...................................... 88-89
Carburetor Assembly ....................................... 90-93
Muffler Assembly ............................................. 94-95
Recoil Starter Assembly................................... 96-97
Control Assembly ............................................ 98-99
Labels Assembly .......................................... 100-101
Honda GX390K1QA2 Engine
Air Cleaner Assembly................................... 102-103
Camshaft Assembly ..................................... 104-105
Piston Assembly ........................................... 106-107
Crankcase Cover Assembly ......................... 108-109
Crankshaft Assembly ................................... 110-111
Cylinder Barrel Assembly ............................. 112-113
Cylinder Head Assembly .............................. 114-115
Fan Cover Assembly .................................... 116-117
Flywheel Assembly ...................................... 118-119
Fuel Tank Assembly ..................................... 120-121
Ignition Coil Assembly .................................. 122-123
Carburetor Assembly ................................... 124-125
Muffler Assembly ......................................... 126-127
Recoil Starter Assembly............................... 128-129
Control Assembly ......................................... 130-131
Gasket Kit Assembly .................................... 132-133
Labels Assembly .......................................... 134-135
Terms And Conditions Of Sale — Parts .............. 136
NOTE
Specification and part number
are subject to change without
notice.
PAGE 4 — HDA-SERIES WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #9 (07/02/10)
PARTS ORDERING PROCEDURES
Ordering parts has never been easier!
Choose from three easy options:
January 1
Effective:
st
, 2006
Best Deal!
Order via Internet (Dealers Only):
Order parts on-line using Multiquip’s SmartEquip website!
N View Parts Diagrams
N Order Parts
N Print Specification Information
Goto www.multiquip.com and click on
Order Par ts
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)
Non-Dealer Customers:
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.
to log in and save!
Order via Phone:
If you have an MQ Account, to obtain a Username
and Password, E-mail us at: parts@multiquip.
com.
To obtain an MQ Account, contact your
District Sales Manager for more information.
Use the internet and qualify for a 5% Discount
on Standard orders for all orders which include
complete part numbers.*
Note: Discounts Are Subject To Change
Fax your order in and qualify for a 2% Discount
on Standard orders for all orders which include
complete part numbers.*
Note: Discounts Are Subject To Change
Domestic (US) Dealers Call:
1-800-427-1244
International Customers should contact
their local Multiquip Representatives for
Parts Ordering information.
When ordering parts, please supply:
R Dealer Account Number
R Dealer Name and Address
R Shipping Address (if different than billing address)
R Return Fax Number
R Applicable Model Number
R 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.
R Specify Preferred Method of Shipment:
UPS/Fed Ex DHL
N Priority One Tr uck
N Ground
N Next Day
N Second/Third Day
www.multiquip.com
WE ACCEPT ALL MAJOR CREDIT CARDS!
HDA-SERIES WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #9 (07/02/10) — PAGE 5
TRAINING CHECKLIST
This checklist will lists some of the minimum requirements for
machine maintenance and operation. Please feel free to detach
it and make copies. Use this checklist whenever a new operator
is to be trained or it can be used as a review for more experienced
operator’s.
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TRAINING CHECKLIST
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Operator _________________________________________ Trainee __________________________________________
COMMENTS:
PAGE 6 — HDA-SERIES WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #9 (07/02/10)
DAILY PRE-OPERATION CHECKLIST
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COMMENTS:
DAILY PRE-OPERATION CHECKLIST
TSILKCEHCNOITAREPO-ERPYLIAD
HDA-SERIES WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #9 (07/02/10) — PAGE 7
SAFETY MESSAGE ALERT SYMBOLS
FOR YOUR SAFETY AND THE SAFETY OF OTHERS!
Safety precautions should be followed at all times when operating
this equipment. Failure to read and understand the Safety
Messages and Operating Instructions could result in injury to
yourself and others.
HAZARD SYMBOLS
NOTE
This Owner's Manual has been developed to provide
complete instructions for the safe and efficient operation
of the MultiQuip HDA-SERIES WALK-BEHIND
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.
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.
Lethal Exhaust Gases
Engine exhaust gases contain poisonous
carbon monoxide. This gas is colorless and
odorless, and can cause death if inhaled.
NEVER operate this equipment in a confined
area or enclosed structure that does not
provide ample free flow air.
Explosive Fuel
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.
DANGER: You WILL be KILLED or
SERIOUSLY injured if you DO NOT follow
directions.
WARNING: You CAN be KILLED or
SERIOUSLY injured if you DO NOT follow
directions.
CAUTION: You CAN be injured if you
DO NOT follow directions.
Potential hazards associated with trowel operation will be
referenced with "
this manual, and will be referenced in conjunction with Safety
"
Message Alert Symbols
Hazard Symbols
".
" which appear throughout
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
and
clothing
prevent injury.
fingers, hands, hair
away from all moving parts to
PAGE 8 — HDA-SERIES WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #9 (07/02/10)
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.
This
NOTE
property, or the surrounding
environment could be damaged if
you do not follow instructions.
walk-behind trowel
, other
Respiratory Hazard
ALWAYS wear approved respiratory protection.
Sight and Hearing hazard
ALWAYS wear approved eye and hearing
protection.
Equipment Damage Messages
Other important messages are provided throughout this manual
to help prevent damage to your trowel, other property, or the
surrounding environment.
HDA-SERIES WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #9 (07/02/10) — PAGE 9
RULES FOR SAFE OPERATION
RULES FOR SAFE OPERATION
CAUTION:
Failure to follow instructions in this manual may
lead to serious injury or even death! This
equipment is to be operated by trained and
qualified personnel only! This equipment is
for industrial use only.
The following safety guidelines should always be used when
operating the
SAFETY
■
DO NOT operate or service this equipment
before reading this entire manual.
■
This equipment should not be operated by
persons under 18 years of age.
■
NEVER operate the trowel without proper protective clothing,
shatterproof glasses, steel-toed boots and other protective
devices required by the job.
HDA-SERIES
walk-behind trowel.
■
NEVER touch the hot exhaust
manifold, muffler or cylinder. Allow
these parts to cool before servicing
the trowel.
■
High Temperatures – Allow the engine to cool before adding
fuel or performing service and maintenance functions. Contact
hot!
with
■
The engine of this trowel requires an adequate free flow of
cooling air. NEVER operate the trowel (except electric models)
components can cause serious burns.
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
trowel's engine and may
cause injury to people.
Remember the trowel's
engine gives off
carbon monoxide gas.
DEADLY
■
■
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 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.
■
Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.
■
ALWAYS check the trowel for loosened threads or bolts
before starting.
■
■
■
■
ALWAYS refuel in a well-ventilated area, away from sparks
and open flames.
ALWAYS use extreme caution when
working with flammable liquids. When
refueling, stop the engine and allow it
to cool.
NEVER
machine. Fire or explosion could result from
fuel vapors
engine.
NEVER operate the trowel in an explosive atmosphere or
near combustible materials. An explosion or fire could result
causing severe
Topping-off to filler port is dangerous, as it tends to spill fuel.
smoke
around or near the
, or if fuel is spilled on a
bodily harm or even death.
hot!
PAGE 10 — HDA-SERIES WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #9 (07/02/10)
RULES FOR SAFE OPERATION
■
DO NOT operate this trowel unless all guards and safety
devices are attached and in place. See pages 16 and 17.
■
ALWAYS use proper lifting techniques when moving the
trowel. See page 24.
■
ALWAYS check to make sure that the operating area is clear
before starting the engine.
■
ALWAYS test the safety
operating the trowel.
■
NEVER place your
while starting or operating this equipment.
■
AVOID wearing jewelry or loose fitting clothing that may snag
on the controls or moving parts, this can cause a serious
injury.
■
ALWAYS keep clear of
operating the trowel.
■
NEVER leave the machine
■
Moving Parts – Shut down the engine before performing
service or maintenance functions. Contact with moving parts
can cause serious injury.
feet
stop switch
or
hands
rotating
or
unattended
devices before
inside the guard rings
moving parts
while running.
while
■
■
■
■
■
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
EMERGENCIES
■
Keep the trowel in proper running condition.
Make sure that there is no buildup of concrete, grease, oil or
debris on the trowel.
Fix damage to the trowel immediately and always replace
broken parts.
Dispose of hazardous waste properly. Examples of potentially
hazardous waste are used
High Temperatures – Allow the machine and engine to
cool
before adding fuel or performing service and
maintenance functions. Contact with
cause serious burns.
ALWAYS know the location of
the nearest
fire extinguisher
motor oil, fuel
.
and
fuel filters
hot!
components can
.
Maintenance Safety
■
Disconnect the spark plug wires before attempting any type
of service.
■
Securely support any machine components that must be
raised.
■
NEVER lubricate components or attempt service on a running
machine.
■
DO NOT use food or plastic containers to dispose of
hazardous waste.
■
DO NOT pour
down a drain or into any water source.
waste, oil
or
fuel
directly onto the ground,
■
■
ALWAYS know the location of the
nearest and
In emergencies
nearest phone or
Also know the phone numbers of the nearest
ambulance, doctor
information will be invaluable in the case of an
emergency.
first aid kit
always
.
know the location of the
keep a phone on the job site
and
fire department
.
. This
HDA-SERIES WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #9 (07/02/10) — PAGE 11
OPERATION AND SAFETY DECALS
OPERATION AND SAFETY DECALS
The HDA-SERIES walk-behind trowel is equipped with a number of operation and safety decals. These decals are provided for
operator safety and maintenance information. Should any of these decals become unreadable, replacements can be obtained from
your dealer.
Figure 1. HDA-SERIES trowel Decals
PAGE 12 — HDA-SERIES WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #9 (07/02/10)
SPECIFICATIONS (TROWEL)
Side View
SPECIFICATIONS (TROWEL)
Top View
Figure 2. HDA-SERIES Trowel Dimensions
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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 “
may vary depending upon the condition of the concrete.
Hearing protection is always recommended.
normal
” circumstances. Sound pressure
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 “
Values were obtained from all three axes of motion. The
values shown represent the maximum RMS value from
these measurements.
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2
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normal
” circumstances.
HDA-SERIES WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #9 (07/02/10) — PAGE 13
SPECIFICATIONS (ENGINES)
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PAGE 14 — HDA-SERIES WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #9 (07/02/10)
GENERAL INFORMATION
GENERAL INFORMATION
HDA-SERIES Walk-Behind Trowel Familiarization
This walk-behind trowel is designed for the
finishing
Take a walk around the trowel. Take notice of all the major
components (see pages 16 and 17) like the engine, blades,
quick pitch control, air cleaner, centrifugal stop switch etc. Check
that there is always oil in the engine.
Read
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.
Engines
This trowel is available with an 11 HP or 13 HP 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.
Drive System
Power is transferred from the engine to the gearbox input shaft
via a V-belt or pulley drive system. The pulley engages using a
centrifugal clutch.
Gearbox
The
to the
rotational speed of the trowel and is equipped with two shafts
(input and output).
Spider
The vertical output shaft of the gearbox connects to a cast hub
called the
that are used for attachment of blades or other accessories.
Remember as the gearbox output shaft rotates so does the spider
assembly.
of concrete slabs.
all the safety instructions carefully. Safety instructions will
gearbox
is located beneath the engine and transfers power
rotor
or
spider
spider
assembly. The gearbox controls the
. The spider has 4 arms that extend outward
floating
and
Blades
The blades of the trowel finish the concrete as they are rotated
around the surface. Blades are classified as
inches wide),
wide). This trowel comes equipped with either
blades per rotor equally spaced in a radial pattern and
attached to vertical rotating shaft by means of a
assembly.
Centrifugal Stop Switch
In the event of a trowel runaway condition (operator releases
the handle), a
depending on which trowel you have, will stop the engine
and bring the trowel to a halt.
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
Moving the HDA-SERIES Walk-Behind 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
page 24, Figure 20. When using the auxiliary tube, always use
two persons
Some models have a
chain can be attached to the lifting bail, allowing a forklift or
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.
combination
float
(10 or 8 inches wide), and finish (6 inches
three
centrifugal stop switch
NEVER attempt to
ALWAYS get the assistance of another
person to help lift the trowel or use a crane or
lifting device to move the trowel.
that is attached to the main handle. See
to lift the trowel.
lifting bail
(option) installed. A strap or
or
manual clutch
lift
the trowel by yourself.
(8
or four
spider
HDA-SERIES WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #9 (07/02/10) — PAGE 15
CONTROLS AND COMPONENTS
Figure 3. HDA-SERIES Walk-Behind Trowels
PAGE 16 — HDA-SERIES WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #9 (07/02/10)
CONTROLS AND COMPONENTS
Figure 3 shows the location of the basic controls or components,
for the HDA-SERIES 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 either 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 star wheel, adjust handlebars to
desired location, tighten
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 – Controls the speed of the engine.
Pull the hand grip toward the operator to increase engine
speed (high), away from the operator to decrease engine
speed (low or idle).
5. Throttle (Engine) – Controls engine speed when throttle
control lever is pulled toward the operator.
6. V-Belt Cover – Remove this cover to gain access to the Vbelt. NEVER operate the trowel with this cover removed.
starwheel
firmly to hold
10. Trowel Lifting Point – Insert the auxiliary lifting tube here.
See Figure 20.
11. Pitch Control (standard models) - Turn this "Star Wheel"
clockwise for increase blade pitch, and counter-clockwise
for 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.
13. Main Tube - When disassembling components inside the
tube exercise extreme CAUTION! Tube is spring-loaded,
severe injury could result if not disassembled correctly.
14. Guard Ring- NEVER! put hands or feet inside guard ring.
15. Engine – This trowel uses an 11HP or 13 HP Honda
gasoline engine.
16. Trowel Arm – 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.
7. Centrifugal Safety Stop Switch – In the event the operator
loses control of the trowel, this switch will shut-down the
engine.
8. Auxiliary Lifting Tube - Use this tube to lift the trowel onto
a slab. Tube is to be inserted into socket located in front of
the gearbox.
9. Stabilizer Ring – Reduces trowel arm vibration. Helps
stabilize trowel arm.
HDA-SERIES WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #9 (07/02/10) — PAGE 17
BASIC ENGINE
INITIAL SERVICING
BASIC ENGINE
Figure 4. Engine Controls and Components
The engine (Figure 4) must be checked for proper lubrication and
filled with fuel prior to operation. Refer to the manufacturers engine
manual for instructions & details of operation and servicing.
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.
6. Choke Lever – Used in the starting of a cold engine, or in
cold weather conditions. The choke enriches the fuel
mixture.
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.
DANGER
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.
2. Throttle Lever – Used to adjust engine RPM speed (lever
FAST
advanced forward
SLOW
).
3. Engine ON/OFF Switch – ON position permits engine
starting, OFF position stops engine operations.
4. Recoil Starter (pull rope) – Manual-starting method. Pull
the starter grip until resistance is felt, then pull briskly and
smoothly.
5. Fuel Valve Lever – OPEN to let fuel flow, CLOSE to stop
the flow of fuel.
, lever back toward operator
8. Spark Plug – Provides spark to the ignition system. Clean
spark plug once a week.
9. Muffler – Used to reduce noise and emissions.
while the engine is running or immediately after operating. NEVER
operate the engine with the muffler removed.
10. Fuel Tank – Holds unleaded gasoline. For additional
information refer to engine owner's manual.
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.
WARNING
Engine components can generate extreme heat.
To prevent burns, DO NOT touch these areas
PAGE 18 — HDA-SERIES WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #9 (07/02/10)
ASSEMBLY AND INSTALLATION
ASSEMBLY AND INSTALLATION
Before the trowel can be put into operation there are some
components that must be installed before the trowel can be used.
This section provided general instructions on how to install those
components. Instruction sheet P/N 20485 provides further details
for the handle assembly.
Handle Tube Installation (All Models)
1. Install the
The mounting hardware should be contained in the shipping
container.
2. On Quick-Pitch™ models, pivot the
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.
handle tube
Figure 5. Handle Tube Installation
to the gearbox as shown in (Figure 5).
Quick-Pitch™ Handle
Figure 6. Handlebar Installation
Throttle Cable Installation
1. Place the throttle lever (Figure 7) to the idle position.
Figure 7. Throttle
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
cable housing protrudes past the housing clamp on the
engine.
1/4" (6.4mm)
of the
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
The Quick-Pitch™ handle is spring loaded,
personal injury or damage could result from
improper handling or installation. Be careful
when installing this component.
Considerable force may be
NOTE
HDA-SERIES WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #9 (07/02/10) — PAGE 19
required when moving the QuickPitch™ Handle forward or
backward.
Figure 8. Throttle Cable Connection
ASSEMBLY AND 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.
Figure 9. Throttle Adjust
7. 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 installing.
Figure 10. Engine Safety Stop Wire Connection
Pitch Cable Installation
1. Expose the pitch cable to maximum by adjusting the handle
pitch to the "no pitch" position. On the standard model turn
Handle Height Adjustment
If handle height adjustment is desired, a handle wedge kit can be
purchased for your trowel by ordering P/N 2576 from your Multiquip
dealer. These wedges are placed between the handle and the
gearbox to adjust the operating height of the handle. This kit
comes complete with wedges, new bolts and installation
instructions. This will move your operating handle position up or
down approximately 3” (76 mm).
Safety Stop Switch Wire
Locate the
tube (Figure 10) and connect it to the
Test the safety stop switch to insure proper operation.
safety stop switch wire
protruding from the handle
tail wire
on the engine.
the pitch control counter-clockwise, (Figure 11). On the
Quick-Pitch™ model, pivot the pitch handle forward or no
pitch (Figure 12).
Figure 11. "No Pitch" Position (Standard)
Figure 12. "No Pitch" Position (Quick-Pitch™)
PAGE 20 — HDA-SERIES WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #9 (07/02/10)
ASSEMBLY AND INSTALLATION
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
Pre-load Adjustment (Quick-Pitch™ Models Only)
1. After the Quick-Pitch™ handle has been installed on the
trowel, spring pre-load adjustment will be required.
2. Locate the adjustment screw on the underside of the handle
tube (Figure 15).
as possible.
Figure 13. Blade Pitch Cable
5. Insert the cable end through the yoke eyelet (Figure 14).
Tighten the first brass set nut by hand to remove all the
slack from the cable.
6 Using a wrench, tighten the second brass set nut up against
the yoke boss. This will lock the cable in place.
7. Use a wrench and finish tightening the first brass set nut up
against the yoke boss.
3. A
assist the user in the adjustment of the spring.
4. Align the
COMBO
5. Test the pitch control operation and adjust if necessary.
6. If less operator effort is desired to pitch the blades, move
the indicator further in the "
YOKE
THREAD CABLE END
THROUGH YOKE EYELET
Figure 15. Pre-load Adjustment
decal
has been placed on the side of the handle tube to
arrow
on the adjustment screw with the letter "B"
on the
decal
.
COMBO
" direction.
TIGHTEN SECOND
BRASS SET NUT
AGAINST YOKE BOSS
USE A WRENCH TO
TIGHTEN FIRST BRASS
SET NUT AGAINST YOKE BOSS
Figure 14. Cable Yoke Attachment
HDA-SERIES WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #9 (07/02/10) — PAGE 21
PRE-INSPECTION
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
NEVER operate the trowel
in a confined area or enclosed
area structure that does not
provide ample
.
air
PRE-INSPECTION
free flow of
ALWAYS wear approved eye and hearing
protection before operating the trowel.
3. Insert and remove the dipstick without screwing it into the filler
NEVER place hands or feet inside the guard
rings while the engine is running. ALWAYS shut
the engine down before performing any kind of
maintenance service on the trowel.
It is recommended that the trowel's
to stop the engine after every use. Doing this will verify that the
switch is working properly and presents no danger to the operator.
Before Starting
1. Read safety instructions at the beginning of manual.
trowel
2. Clean the
engine cooling air inlet, carburetor and air cleaner.
, removing dirt and dust, particularly the
safety stop switch
be used
neck. Check the oil level shown on the dipstick.
4. If the oil level is low (Figure 17), fill to the edge of the oil filler
hole with the recommended oil type (Table 3). Maximum oil
capacity is 1.16 US Qt. (1.1 liters).
NOTE
Figure 16. Engine Oil Dipstick (Removal)
Reference manufacturer engine
manual for specific servicing
instructions.
3. Check the air filter for dirt and dust. If air filter is dirty, replace
air filter with a new one as required.
4. Check carburetor for external dirt and dust. Clean with dry
compressed air.
5. Check fastening nuts and bolts for tightness.
Figure 17. Engine Oil Dipstick (Oil Level)
epyTliO.3elbaT
Engine Oil Check
1. To check the engine oil level, place the trowel on secure level
ground with the engine stopped.
2. Remove the filler dipstick from the engine oil filler hole
(Figure 16) and wipe it clean.
nosaeS erutarepmeT epyTliO
remmuS rehgiHroC°52 03-W01EAS
llaF/gnirpS C°01~C°52 02/03-W01EAS
retniW rewoLroC°0 01-W01EAS
PAGE 22 — HDA-SERIES WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #9 (07/02/10)
PRE-INSPECTION
Explosive Fuel
Blade Check
Check for worn or damaged blades. Check to see if one blade is
worn out while the others look new. If this is the case there could
be a blade pitch problem. Refer to the maintenance section of
Fuel Check
Motor fuels are highly flammable and can be dangerous if
this manual for blade pitch adjustment procedure. Replace any
worn blades.
mishandled. DO NOT smoke while refueling. DO NOT attempt
to refuel the trowel if the engine is
hot! or running
1. Remove the gasoline cap located on top of fuel tank.
2. Visually inspect to see if fuel level is low. If fuel is low, replenish
.
CONTROLS
Safety Stop Switch
This trowel has been equipped with a centrifugal safety stop
switch
(Figure 19).
with unleaded fuel.
3. When refueling, be sure to use a strainer for filtration. DO
NOT top-off fuel. Wipe up any spilled fuel.
Gearbox Oil
1. Determine if the
gearbox
oil is low by removing the oil
plug located on the side of the gearbox. This plug will be
check
marked by the "
" decal (Figure 18). The correct level
of the lubrication oil should be to the bottom of the fill plug.
GEARBOX
The switching mechanism of this switch should operate freely
and should
the OFF position, the engine should not start or run. The pur pose
FILL PLUG
DRAIN
PLUG
of this switch is to stop the engine in a runaway situation, (i.e. the
operator releasing the handle during operation).
switches should be tested every time the engine is started.
page 25 for procedures to check the operation of the Safety Stop
Figure 18. Gearbox
Switch.
2. If lubrication oil begins to seep out as the drain plug is
being removed, then it can be assumed that the gearbox
has a sufficient amount of oil.
3. If lubrication oil does not seep out as the drain plug is
NOTE
being removed, fill with type ISO 680 (Whiteman P/N 10139)
gearbox lubricant oil until the oil filler hole overflows.
V-belt Check
A worn or damaged V-belt can adversely affect the performance
of the trowel. If a V-belt is defective or worn simply replace the Vbelt as outlined in the maintenance section of this manual.
Figure 19. Centrifugal Safety Stop Switch
always
be kept in this condition. With the switch in
Safety stop
See
NEVER!
disable or disconnect the
safety stop switch. It is provided for
operator safety. Injury may result if it
is disable, disconnected or
improperly maintained.
HDA-SERIES WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #9 (07/02/10) — PAGE 23
INITIAL START-UP
INITIAL START-UP
DO NOT use your trowel until this section has been read and is
thoroughly understood.
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
The trowel is
around. Use proper heavy lifting procedures
and DO NOT
rings.
Lifting the Trowel Onto a Slab
Auxiliary Lifting Tube
Remove the auxiliary lifting tube located on top of the main handle.
Insert the tube into the socket located on the opposite side of the
gearbox (Figure 20) from the handle.
Make sure that the hole in the tube engages with the pin in the
socket. With one person lifting from the main handle, and another
lifting from the auxiliary lifting tube pick up the machine to move
onto a slab.
heavy
and
awkward
lift the trowel by the guard
to move
Using a
recommended, and is perfectly safe for the machine. Extra care
should be taken when lifting the machine off the ground, however.
Serious damage to the machine or personal injury could be
caused by dropping a trowel.
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
Starting the Engine
1. Place the engine
position.
crane
to move a machine with a lift bail is highly
DO NOT attempt to operate the trowel until
the Safety, General Information and
Inspection sections of this manual have
been read and thoroughly understood.
Depending on engine manufacturer,
operating steps may vary. See engine
manufactures operating manual. The
following start-up procedure makes
reference to a HONDA 11HP or 13HP
Engine (Manual Start).
fuel valve lever
(Figure 21) to the "ON"
Figure 20. Lifting the Trowel
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
The trowel must be stabilized by the person
carrying the
it is not stabilized properly the handle may
swing around and
damage to the trowel and bodily injury.
Lifting Bail (Option)
The lift bail is optional on new trowels. It provides an optimal lift
point for moving the trowel.
lift a trowel up onto a building with a crane. See “
Equipment
PAGE 24 — HDA-SERIES WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #9 (07/02/10)
” section in this manual for ordering information.
operator’s handle
flip
the trowel, thus causing
Lift bales or forklift
(Figure 20). If
can be used to
Optional
2. Move the throttle lever (Figure 22) to the "idle" position.
Figure 21. Engine Fuel Valve Lever
Figure 22. Throttle (Idle Position)
INITIAL START-UP
3. Place the
"ON" position.
4. Place the
position.
centrifugal safety stop switch
Figure 23. Centrifugal Safety Stop Switch
Choke Lever
(Figure 23) in the
(Figure 24) in the "
CLOSED
6. If the engine has started, slowly return the choke lever
OPEN
(Figure 24) to the
repeat steps 1 through 5.
7. Before the trowel is placed into operation, run the engine for
several minutes. Check for fuel leaks, and noises that would
associate with a loose guard ring and/or covers.
8. Test the Safety Stop Switch.
a. With the engine at idle, move the safety stop switch lever
to "OFF" (Figure 23). The engine should shut off.
b. CLEAR THE AREA AROUND THE TROWEL. Move
the safety stop switch lever back to the "ON" position,
restart the engine and let idle. Stand behind the handle
and spin the handle to the right, simulating a runaway
"
situation. (See Figure 26). Centrifugal force should
throw the safety switch outward to the "OFF" position
thus shutting off the engine
position. If the engine has not started
Figure 24. Engine Choke Lever
5. Grasp the starter grip (Figure 25) and slowly pull it out. The
resistance becomes the hardest at a certain position, corresponding to the compression point. Pull the starter grip briskly
and smoothly for starting.
9. To begin troweling, push the throttle lever (Figure 27) toward
Figure 25. Starter Grip
.
Figure 26. Testing the Centrifugal Safety Stop Switch
the "
RUN
" position.
Figure 27. Throttle (Run Position)
HDA-SERIES WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #9 (07/02/10) — PAGE 25
OPERATION
OPERATION
The following steps are intended as a basic guide to machine
operation, and are not to be considered a complete guide to
concrete finishing. We suggest that all operators (experienced
and novice) read “
Slabs on Grade
Concrete Institute, Detroit, Michigan
section of this manual for more information.
Pitching The Blades
” published by the
. Read the “Training”
American
Maneuvering the Trowel
1. Get into the operator’s position behind the handle. With a
secure foothold and a firm grasp on the handles slowly
increase the engine speed until the desired blade speed is
obtained.
2. To maneuver the trowel, gently lift up on or press down on the
main trowel handle. To move the machine to the operator’s
left,
down
Quick-Pitch™ Handle
To pitch the blades upwards using the
handle
pull the handle toward the operator. Pushing the handle
toward the engine will cause the blades to lay flat.
, (Figure 28) simply squeeze the trigger lock and
"Quick-Pitch
3. The best method for finishing concrete is to slowly walk
™"
backwards (Figure 30) with the trowel, guiding the trowel
from side to side. This will cover all footprints on wet concrete.
4. Remember that if you let go of the trowel, just step away and
let the trowel come to a complete stop before trying to recover
the trowel. See (Figure 26) to see the area around the trowel
to keep clear of.
lift up
on the handle, to move machine to the right,
on the handle.
push
Figure 28. Quick-Pitch™ Handle
Standard Handle
To pitch the blades upwards using the "
(Figure 29) simply turn the
wheel counter clockwise will cause the blades to lay flat.
Figure 29. Standard Handle
star-wheel
Standard
clockwise. Turning the star
" handle,
PAGE 26 — HDA-SERIES WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #9 (07/02/10)
OPERATION
(Figure 30) below illustrates a typical walk-behind trowel
application. Practice maneuvering the trowel. The trick is to let
the trowel do the work.
Continue to practice maneuvering the trowel. Try to practice as if
you were finishing a slab of concrete. Practice edging and
covering a large area. Remember a good finishing technique is
to work backwards. Be careful when moving backwards so that
hazards can be avoided. The best way to get accustomed to the
trowel is repeated use.
Figure 30. Maneuvering The Trowel
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
NEVER place your
guard rings while starting or operating this
equipment.
HDA-SERIES WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #9 (07/02/10) — PAGE 27
feet
or
hands
inside the
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
ALWAYS keep clear of
parts while operating this equipment.
rotating
or
moving
OPTIONS
OPTIONS
Blades
Clip-On Float Blades (Optional)
These blades will clip (Figure 33) on to an existing installed blade,
allowing your finisher to float on “wet” concrete so that the
troweling operation can begin as early as possible. They are
easily removable, so that after the floating operation, when the
concrete is sufficiently cured, they can be removed to expose the
finish blades for continued troweling.
NOTE
Blades should be changed when
they fail to finish concrete in a
satisfactory manner.
Blades are a vital part of finishing concrete. This trowel, or
finisher
, has been designed to finish concrete and the blades are
built to stringent quality standards out of the finest trowel steel. If
you need replacement blades, consult your parts list in this
manual for part numbers and order them from your Multiquip parts
dealer or importer.
Combo Blades
This trowel was equipped with combination
31) blades as original equipment. These blades have been
designed for optimum performance in both the floating and
finishing operations. These blades are versatile and should take
care of most troweling needs.
float/finish
(Figure
Float Discs (Optional)
These round discs (Figure 34) attach to the spiders and allow the
machine to “float” on “wet” concrete. The disc design allows early
floating and easy movement from wet to dry areas. They are also
very effective in embedding large aggregates and surface
hardeners.
Figure 33. Clip-On Float Blade
Figure 31. Combination Blade
Finish Blades (Optional)
Figure 34. Float Disk
These blades (Figure 32) have been specifically designed for
finish operations with this trowel. They will provide a premium
surface finishing capability from your trowel. They should only be
used after the concrete has set to the point where the trowel does
not sink into the concrete when placed on it.
Figure 32. Finish Blade
PAGE 28 — HDA-SERIES WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #9 (07/02/10)
Lifting Bail
There is a heavy duty, center balance type lifting bail (Figure 35)
made specifically for your trowel. These bales are ideal for lifting
and transporting your trowel. They are designed to lift the finisher
and balance it on it’s center of gravity, providing great stability
while lifting. This option is not available on electric trowel models.
AB
OPTIONS
Figure 35. Lifting Bail
A. P/N 10157 (11 HP Engine)
B. P/N 11554 (13 HP Engine)
Trowel Arm Adjustment Tool
If blades show uneven wear patterns or some tend to wear out
faster than others, the trowel arms may need to be adjusted.
Whiteman makes a special tool (Figure 36) that will adjust all of
the trowel arms consistently. The Trowel Arm Fixture P/N is 1817.
Figure 36. Trowel Arm Adjustment Fixture
HDA-SERIES WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #9 (07/02/10) — PAGE 29
MAINTENANCE
MAINTENANCE
Trowel Arm Adjustment Procedure
See the engine manual supplied with
NOTE
your machine for appropriate engine
maintenance schedule and
NOTE
troubleshooting guide for problems.
A
level
At the front of the book (Page 7) there is a “
Checklist
basis.
CAUTION!CAUTION!
CAUTION!
CAUTION!CAUTION!
MAINTENANCE SCHEDULE
Daily (8-10 Hours)
1. Check the oil level in the engine crankcase and gear box,
2. Check V-belt.
Weekly (50-60 Hours)
1. Relube arms, thrust collar and clutch.
2. Replace blades if necessary.
3. Check and clean or replace the engine air filter as
”. Make copies of this checklist and use it on a daily
ALWAYS allow the engine to
cool before servicing. NEVER
attempt any maintenance
hot!
work on a
fill as necessary.
necessary.
engine.
Daily Pre-Operation
, clean area to test the trowel prior to and after is essential.
Any unlevel
will give an incorrect perception of adjustment. Ideally, a 5 x 5"
three-quarter inch thick
1. To determine which blades need adjustment, place the
trowel in the test area (three-quarter inch thick plate) and look
for the following conditions:
■
■
(Figure 37) below illustrates "
trowel arms
touching (0.010" max. clearance) lower wear plate. All alignment
bolts should be spaced the same distance from the lower wear
plate.
The following procedure should be
followed to adjust trowel arms when
it becomes apparent that the trowel
is finishing poorly or in need of
routine maintenance.
spots
in the floor or debris under the trowel blades
flat
steel plate should be used for testing.
Pitch the blades as flat as possible and look at the
adjustment bolts
with the
that one of them is not making contact, some adjustment
will be necessary.
Is the machine wearing out blades unevenly (i.e. one
blade is completely worn out while the others look new)?
lower wear plate
". Check to see that adjustment bolt is barely
. They should all barely make contact
on the spider. If you can see
worn spider bushings or bent
4. Replace engine oil and filter as necessary, see engine
manual.
Monthly (200-300 Hours)
1. Remove, clean, reinstall and relube the arms and thrust
collar. Adjust the blade arms.
2. Remove, clean, reinstall clutch.
Yearly (2000-2500 Hours)
1. Check and replace if necessary the arm bushings, thrust
collar bushings and shaft seals.
2. Check pitch control cables for wear.
3. Adjust blade speed.
(Figure 38) below illustrates the "
plate (as shipped from the factory).
Figure 37. Worn Spider Plate
correct alignment
Figure 38. Correct Spider Plate Alignment
" for a spider
PAGE 30 — HDA-SERIES WALK-BEHIND TROWEL— OPERATION AND PARTS MANUAL — REV. #9 (07/02/10)
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