MQ BA- Parts Manual

OPERATION AND PARTS MANUAL

BA-SERIES

WALK-BEHIND TROWEL

MODEL #
SERIAL #

© COPYRIGHT 2002, MULTIQUIP INC.

Revision #3 (11/30/04)

MULTIQUIP INC

18910 WILMINGTON AVE. 800-427-1244
CARSON, CALIFORNIA 90746 FAX: [phone]
310-537-3700
800-421-1244 800-478-1244
FAX: [phone] FAX: [phone]

E-mail:[e-mail] • www:multiquip.com

Atlanta • Boise • Dallas • Houston • Newark
Montreal, Canada • Manchester, UK
Rio De Janiero, Brazil • Guadalajara, Mexico

..

. PARTS DEPARTMENT:

..

SERVICE DEPARTMENT/TECHNICAL ASSISTANCE:

P/N 20905

HERE'S HOW TO GET HELP

PLEASE HAVE THE MODEL AND SERIAL NUMBER
ON-HAND WHEN CALLING

PARTS DEPARTMENT

800-427-1244 or 310-537-3700
FAX: [phone] or 310-637-3284

SERVICE DEPARTMENT/TECHNICAL ASSISTANCE

800-478-1244 or 310-537-3700
FAX: [phone]

WARRANTY DEPARTMENT

888-661-4279, or 310-661-4279
FAX: [phone]

MAIN

800-421-1244 or 310-537-3700
FAX: [phone]

BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 3

BA-SERIES TROWEL— TABLE OF CONTENTS

Here's How To Get Help ............................................ 3

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

Specifications (Trowel Weights) .............................. 14

General Information ................................................ 15

MQ WHITEMAN — BA-SERIES TROWEL

Controls and Components ................................. 16-17

Basic Engine ........................................................... 18

Assembly and Installation .................................. 19-21

Pre-Inspection .................................................... 22-23

Initial Start-Up (Gasoline Engine) ......................24-25

Operation ........................................................... 26-27

Options ............................................................... 28-29

Maintenance ...................................................... 30-34

Troubleshooting (Trowel) ................................... 35-36

Troubleshooting (Engine) ........................................ 37

Explanation of Codes in Remarks Column ............. 38

Suggested Spare Parts ........................................... 39

Nameplate and Decals.......................................40-41

Standard Handle Assy. .......................................42-43

Quick Pitch™ Handle Assy. ............................... 44-46

Thrust Bearing Kit Assy. ..................................... 48-49

4 Blade Spider Assy. .......................................... 50-51

Gearbox and Engine Mounts Assy. ................... 52-54

Engines, Honda, Robin, & Briggs & Stratton ..... 56-57

Hand Clutch Assy. .............................................. 58-59

Guard Ring Assy. ............................................... 60-61

Stabilizer Ring Assy............................................ 62-63

Blades and Adjustment Fixture Assy. ................ 64-65

Lifting Bale Assy. (Option) .................................. 66-67

HONDA GX240K1QA2 ENGINE

Air Cleaner Assy. ................................................ 68-69

Camshaft Assy. .................................................. 70-71

Carburetor Assy. ................................................ 72-73

Control Assy. ...................................................... 74-75

Crankcase Cover Assy. ...................................... 76-77

Crankshaft Assy. ................................................ 78-79

Cylinder Barrel Assy. ..........................................80-81

Cylinder Head Assy. ...........................................82-83

Fan Cover Assy. .................................................84-85

Flywheel Assy..................................................... 86-87

Fuel Tank Assy. .................................................. 88-89

Ignition Coil Assy. ............................................... 90-91

Muffler Assy........................................................ 92-93

Piston Assy. ........................................................ 94-95

Recoil Starter Assy. ............................................ 96-97

Labels ................................................................ 98-99

ROBIN EH25-2 ENGINE

Crankcase Assy. ............................................ 100-101

Crankshaft Assy. ............................................ 102-103

Intake and Exhaust Assy. ...............................104-105

Governor Assy. .............................................. 106-107

Cooling and Starting Assy. ............................. 108-109

Fuel Tank Assy. .............................................. 110-111

Carburetor Assy. ............................................ 112-113

Recoil Start Assy. ...........................................114-115

Oil Sensor Assy. ............................................. 116-117

Terms and Conditions of Sale — Parts ................. 118

NOTE

Specification and part number
are subject to change without
notice.

PAGE 4 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

BA-SERIES TROWEL— PARTS ORDERING PROCEDURES

■■

■ 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

■■

■■

■ Specify preferred method of shipment:

■■

UPS Ground

•

UPS Second Day or Third Day*

•

UPS Next Day*

•

Federal Express Priority One (please provide us with your Federal

•

Express account number)*

Airborne Express*

•

Truck or parcel post

•

*Normally shipped the same day the order is received, if prior to 2PM west coast time.

Earn Extra Discounts when

you order by FAX!

All parts orders which include complete part numbers
and are received by fax qualify for the following extra
discounts:

Number of
line items ordered Additional Discount

1-9 items 3%

10+ items** 5%

Get special freight allowances
when you order 10 or more
line items via FAX!**

■■

■

UPS Ground Service at no charge for freight

■■

■■

■

UPS Third Day Service at one-half of actual freight

■■

cost

Extra Fax DiscountExtra Fax Discount

Extra Fax Discount

Extra Fax DiscountExtra Fax Discount

for Domestic USAfor Domestic USA

for Domestic USA

for Domestic USAfor Domestic USA

Dealers OnlyDealers Only

Dealers Only

Dealers OnlyDealers Only

Now! Direct TOLL-FREE access

to our Parts Department!

Toll-free nationwide:

No other allowances on freight shipped by any other carrier.

**Common nuts, bolts and washers (all items under $1.00 list price)
do not count towards the 10+ line items.

*DISCOUNTS ARE SUBJECT TO CHANGE*

Fax order discount and UPS special programs revised June 1, 1995

BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 5

800-421-1244

Toll-free FAX:

800/6-PARTS-7 • 800-672-7877

BA-SERIES TROWEL— TRAINING CHECKLIST

TRAINING CHECKLIST

This checklist will lists some of the minimum requirements for
machine maintenance and operation. Please feel free to detach
it and make copies. Use this checklist whenever a new operator
is to be trained or it can be used as a review for more experienced
operator’s.

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Operator _________________________________________ Trainee __________________________________________
COMMENTS:

PAGE 6 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

BA-SERIES TROWEL— DAILY PRE-OPERATION CHECKLIST

DAILY PRE-OPERATION CHECKLIST

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BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 7

BA-SERIES TROWEL— 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 BA-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 B-Series 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 fingers,

clothing

injury.

away from all moving parts to prevent

hands, hair

and

PAGE 8 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

BA-SERIES 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.

NOTE

This

walk-behind trowel

the surrounding environment could be
damaged if you do not follow instructions.

, other property, or

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.

BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 9

BA-SERIES TROWEL— 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 BA-Series walk-behind trowel.

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.

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.

■

Manufacture 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 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

BA-SERIES TROWEL— 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.

■

ALWAYS check to make sure that the operating area is clear
before starting the engine.

■

ALWAYS test the safety
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.

Maintenance Safety

■

Disconnect the spark plug wires before attempting any type
of service.

kill switch

feet

or

rotating

devices before operating

hands

inside the guard rings

or

moving parts

unattended

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

location of the nearest telephone. Also know
the phone numbers of the nearest

ambulance, doctor

This information will be invaluable in the case
of an

motor oil, fuel

emergency

and

.

and

fuel filters

hot!

components can

first aid kit

and

. Know the

fire department

.

.

■

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,

BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 11

BA-SERIES TROWEL— OPERATION AND SAFETY DECALS

Machine Safety Decals

The BA-Series walk-behind trowel is equipped with a number of safety decals. These decals are provided for operator safety and
maintenance information. Figure 1 below illustrates these decals as they appear on the machine. Should any of these decals
become unreadable, replacements can be obtained from your dealer.

CAUTION

DO NOT LIFT MACHINERY BY GUARD

RING. MAY CAUSE DAMAGE TO

GUARD RING SHOCK MOUNTS

USE LIFT HANDLES ONLY

P/N 1261

P/N 1940

C

H

T

I

™

P

-

K

C

I

U

Q

BOISE, IDAHO USA

U. S. PATENT

XXXXXXX

C

O

N

C

R

E

I

T

F

E

P/N 1758

H

A

N

D

L

E

R

E

H

S

I

N

P/N 1736

I

C

U

K

Q

P

H

I

T

C

P/N 12405

WARNING!

INJURY COULD RESULT IF FINISHER IS LIFTED

WITHOUT PITCH HANDLE FIRMLY ENGAGE

P/N 20526

WARNING!

DO NOT OPERATE HANDLE UNTIL IT IS

SECURELY FASTENED TO POWER TROWEL

& INSTRUCTIONS HAVE BEEN READ

P/N 20527

E

T

E

F

R

L

C

N

O

C

FINISHER

B

O

I

S

E

P/N 1492

,

O

O

R

P

A

S

U

O

I

H

D

A

O

W

E

R

L

E

W

O

R

T

P/N 1848

PRELOAD TRIM INDICATOR

FINISH

J

COMBO

FINISH

P/N 1735

Symbol indicates that it is mandatory to wear
safety glasses, safety helmet and ear protection.

P/N 11247

Symbol indicates that it is mandatory to wear
gloves.

P/N 11247

Radiating heat symbol. Symbol indicates equipment
is hot.

P/N 11246

Symbol for examining or checking of the machine.
Mostly used for maintenance. Check lubrication
oil in gearbox.

P/N 11246

COMBO

B

(Part of decal kit 12620)

(Part of decal kit 12620)

(Part of decal kit 12620)

(Part of decal kit 12620)

Figure 1. BA-Series Trowel Decals

GENUINE

TROWEL

P/N 2938

METRIC

MADE IN USA

NAMEPLATE

P/N1499

CONTACT MULTIQUIP

SERVICE DEPT.

Symbol indicates that it is mandatory to
wear safety shoes, with extra protection
(steel toed).

P/N 11247

This is the symbol for belt drive.

P/N 11246

This is the symbol for gear drive.

P/N 11246

(Part of decal kit 12620)

(Part of decal kit 12620)

(Part of decal kit 12620)

PAGE 12 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

Side View

BA-SERIES TROWEL— SPECIFICATIONS (TROWEL)

Figure 2. BA-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.

snoitacificepSleworTseireS-AB.1elbaT

)mm4.861,1(0.64
)mm1.019,1(2.57

2

)

normal

” circumstances.

BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 13

BA-SERIES TROWEL— SPECIFICATIONS (ENGINES)

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PAGE 14 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

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HPH0.8).gk011(.sbl242).gk231(.sbl292

BA-SERIES TROWEL— GENERAL INFORMATION

BA-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 Figure 3, 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 either an 8.0 HP HONDA, 8.5 HP

ROBIN, or a 8.0 HP Briggs and Stratton gasoline engine.

Refer to the engine owner’s manual for instructions regarding
the operation and maintenance of your engine. The engine
manual is included with your trowel at the time of shipment from
Whiteman. Please contact your nearest Multiquip Dealer for a
replacement should the original manual disappear.

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
either a centrifugal or manual clutch. See page 23.

Gearbox

The
to the
rotational speed of the trowel and is equipped with two shafts
(input and output).

Spider

of concrete slabs.

all the safety instructions carefully. Safety instructions will

gearbox

is located beneath the engine and transfers power

rotor

or

spider

assembly. The gearbox controls the

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 BA-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 21. When using the auxiliary tube, always use

two persons

Some models have a
chain can be attached to the lifting bale, 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

or four

spider

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 bale

(option) installed. A strap or

or

manual clutch

lift

the trowel by yourself.

(8

The vertical output shaft of the gearbox connects to a cast hub

spider

called the
outward that are used for attachment of blades or other
accessories. Remember as the gearbox output shaft rotates so
does the spider assembly.

BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 15

. The spider has either 3 or 4 arms that extend

BA-SERIES TROWEL— CONTROLS AND COMPONENTS

FINISH

COMBO

PRELOADTRIM

INDICATOR

FINISH

COMBO

QUICK PITCH ™

HANDLE

W

4

3

5

6

2

1

7

8

O

B

R

M
O
C

TO

A
C

I

B

D
N

I

H

IS

M

IN

I

F

R
T

O
B

D

M
O

A

C

O
L
E

J

R

P

H

IS
IN
F

13

9

4

5

3

2

11

6

20

Figure 3. BA-Series Walk-Behind Trowels

10

16

17

15

W

12

8

7

STANDARD

HANDLE

13

14

18

PAGE 16 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

BA-SERIES TROWEL— CONTROLS AND COMPONENTS

Figures 3 shows the location of the basic controls or components,
for the BA-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 starwheel firmly to hold 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 Grip – Controls the speed of the engine.
Rotate the hand grip away from the operator to increase
engine speed (high), toward the operator to decrease
engine speed (low).

5. Throttle – Controls engine speed when throttle control
grip is rotated.

15. Engine – This trowel uses Honda, Robin and Briggs and
Stratton type gasoline engines.

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.

17. 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.

18. V-Belt Cover – Remove this cover to gain access to the V­belt. NEVER operate the trowel with this cover removed.

20. Stabilizer Ring – Reduces trowel arm vibration. Helps
stabilize trowel arm.

6. 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.

7. Centrifugal Kill 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. Weights – The trowel may be equipped with two 10 lbs.
weights. The weights may be removed to reduce the
operating weight of the trowel.

10. Trowel Lifting Point – Insert the auxiliary lifting tube here.
See Figure 21.

11. Pitch Control (standard models) - Turn this "Star Wheel"
clockwise for increase blade pitch, and counter-clockwise
for decrease blade pitch.

12. Clutch Lever - Clutch engagement lever. When this lever
is engaged, the blades will begin to rotate. May be used
with either Quick Pitch™ or Standard handle.

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.

BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 17

HONDA engine shown.

BA-SERIES TROWEL— BASIC ENGINE

Figure 4. Engine Controls and Components

INITIAL SERVICING

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. The
engine shown above is a HONDA engine, operation for other
types of engines may vary somewhat.

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.

5. Fuel Valve Lever – OPEN to let fuel flow, CLOSE to stop
the flow of fuel.

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

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

SLOW

advanced forward

FAST

).

, lever back toward operator

8. Spark Plug – Provides spark to the ignition system. Set
spark plug gap to 0.6 - 0.7 mm (0.028 - 0.031 inch) Clean
spark plug once a week.

9. Muffler – Used to reduce noise and emissions.

NOTE

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

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.

PAGE 18 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

Engine components can generate extreme heat.

To prevent burns, DO NOT touch these areas
while the engine is running or immediately after operating. NEVER
operate the engine with the muffler removed.

10. Fuel Tank – Holds unleaded gasoline. For additional

information refer to engine owner's manual.

BA-SERIES TROWEL — 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

handle tube

to the gearbox as shown in (Figure 5).
The mounting hardware should be contained in the shipping
container.

Figure 5. Handle Tube Installation

2. On Quick-Pitch™ models, pivot the

T-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.

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.

NOTE

Figure 6. Handlebar Installation

Throttle Cable Installation (Honda and Robin Engines)

1. Set the

throttle

(Figure 7) to the idle position by rotating

the grip toward the operator and away from the engine.

Figure 7. Throttle

2. Feed the throttle cable through the cable housing. Make sure
the throttle indicator is on 1".

3. Connect the throttle cable to the engine. (Figure 8),
and (Figure 9),

Robin

. There should be a piece of wire

Honda

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.

THROTTLE

CABLE END

ENGINE

THROTTLE

LEVER

SWIVEL STOP

SCREW

Considerable force may be required when
moving the Quick-Pitch™ T-handle
forward or backward.

BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 19

CABLE

HOUSING

CLAMP

CABLE HOUSING

Figure 8. Throttle Cable Connection (HONDA)

BA-SERIES TROWEL — ASSEMBLY AND INSTALLATION

Figure 9. Throttle Cable Connection (ROBIN)

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 by rotating the barrel adjuster. (Figure

10)

BARREL ADJUSTER

Figure 10. Barrel Adjuster

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 installing.

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” (76mm).

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
the pitch control counter-clockwise, (Figure 12). On the
Quick-Pitch™ model, pivot the pitch handle forward or no
pitch, (Figure 13).

Figure 11. Engine Kill Wire Connection

Figure 12. "No Pitch" Position (Standard)

Safety Kill Wire

Locate the
and connect it to the
switch to insure proper operation.

RED

wire protruding from the handle tube (Figure11)

RED

tail wire on the engine. Test the kill

PAGE 20 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

Figure 13. "No Pitch" Position (Quick-Pitch™)

BA-SERIES TROWEL — ASSEMBLY AND INSTALLATION

Pre-load Adjustment (Quick-Pitch™ Models Only)

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 14).

4. Thread the second brass set nut towards the cable as far
as possible.

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 16).

Figure 14. Blade Pitch Cable

5. Insert the cable end through the yoke eyelet (Figure 15)
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

Walk-Behind trowel.

5. Test the pitch control operation and adjust if necessary.

YOKE

THREAD CABLE END
THROUGH YOKE EYELET

Figure 16. 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

. The letter "B" stands for BA-Series

TIGHTEN SECOND
BRASS SET NUT
AGAINST YOKE BOSS

USE A WRENCH TO
TIGHTEN FIRST BRASS
SET NUT AGAINST YOKE BOSS

Figure 15. Cable Yoke Attachment

BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 21

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

NEVER operate the trowel

in a confined area or
enclosed area structure
that does not provide ample

free flow of air

ALWAYS wear approved eye and hearing

protection before operating the trowel.

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.

.

BA-SERIES TROWEL— PRE-INSPECTION

Figure 17. Engine Oil Dipstick (Removal)

3. Insert and remove the dipstick without screwing it into the filler
neck. Check the oil level shown on the dipstick.

4. If the oil level is low (Figure 18), fill to the edge of the oil filler
hole with the recommended oil type (Table 4). Maximum oil
capacity is 400 cc.

It is recommended that the trowel's
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.

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.

Engine Oil Check

1. To check the engine oil level, place the trowel on secure level
ground with the engine stopped.

, removing dirt and dust, particularly the

kill switch

be used to stop

NOTE

Reference manufacturer engine manual for
specific servicing instructions.

Figure 18. Engine Oil Dipstick (Oil Level)

epyTliO.4elbaT

nosaeS erutarepmeT epyTliO

remmuS rehgiHroC°52 03-W01EAS

2. Remove the filler dipstick from the engine oil filler hole
(Figure 17) and wipe it clean.

PAGE 22 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

llaF/gnirpS C°01~C°52 02/03-W01EAS

retniW rewoLroC°0 01-W01EAS

BA-SERIES TROWEL— PRE-INSPECTION

Blade Check

Explosive Fuel

Fuel Check

Motor fuels are highly flammable and can be dangerous if
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

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

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
this manual for blade pitch adjustment procedure. Replace any
worn blades.

CONTROLS

Safety Kill Switches

This trowel has been equipped with a safety kill switch or a hand
operated clutch. Safety kill switches or hand clutches should be
tested every time the engine is started.

NOTE

NEVER!

disable or disconnect the kill switch.
It is provided for operator safety. Injury may
result if it is disable, disconnected or
improperly maintained.

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. See Figure 19. The correct
level of the lubrication oil should be to the bottom of the fill
plug.

Centrifugal Type Kill Switch

The switching mechanism of this switch (Figure 20) should
operate freely and should
the switch in the OFF position, the engine should not start or run.

GEARBOX

The purpose of this switch is to stop the engine in a runaway
situation, (i.e.-the operator releasing the handle during operation).

OIL SIGHT/

FILL PLUG
DRAIN
PLUG

Figure 19. Gearbox

2. If oil does not reach the middle of the

sight glass

type ISO 680 (Whiteman P/N 10139) gearbox lubricant oil
until the oil level reaches the middle of the sight glass.

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.

fill with

Hand Clutch

Some finisher models are equipped with a

clutch

unit automatically stops rotating when the clutch lever is released.
DO NOT let the machine sit unused with the engine at high speed

for an extended period of time. It will cause premature belt wear
or may destroy the belt. Always set the engine speed to idle when
the hand clutch is disengaged.

always

be kept in this condition. With

Figure 20. Centrifugal Kill Switch

hand operated

. These units are not equipped with a safety kill switch. The

BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 23

BA-SERIES TROWEL — INITIAL START-UP

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 21) 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

This section is intended to assist the operator with the initial
start-up of the walk-behind 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.

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

Starting the Engine (

1. Place the engine
position.

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 13 HP Engine

(Manual Start).

HONDA

fuel valve lever

engine)

(Figure 22) to the "ON"

Figure 21. Lifting the Trowel

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

The trowel must be stabilized by the person
carrying the

If it is not stabilized properly the handle may
swing around and
damage to the trowel and bodily injury.

Lifting Bale (Option)

The lift bale 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

Using a
recommended, and is perfectly safe for the machine. Extra care
should be taken when lifting the machine off the ground, though.
Serious damage to the machine or personal injury could be
caused by dropping a trowel.

” section in this manual for ordering information.

crane

to move a machine with a lift bale is highly

PAGE 24 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

operator’s handle

flip

the trowel, thus causing

Lift bales or forklift

(Figure 21).

2. Rotate the

can be used to

Optional

Figure 22. Engine Fuel Valve Lever

throttle

Figure 23. Throttle (Idle Position)

(Figure 23) to the "idle" position.

BA-SERIES TROWEL — INITIAL START-UP

3. Place the
position. For models that use this feature.

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

4. Place the

centrifugal kill switch

NEVER disable or disconnect the centrifugal

kill switch. It is provided for the operators’
safety and injury may result if it is disabled,
disconnected or improperly maintained.

Figure 24. Centrifugal Kill Switch

Choke Lever

(Figure 25) in the "

(Figure 24) in the "ON"

OPEN

" position

Figure 26. Starter Grip

6. If the engine has started, slowly return the choke lever
(Figure 25) to the
started repeat steps 1 through 5.

Before the trowel is placed into operation, run the engine for

7.

several minutes. Check for fuel leaks, and noises that would
associate with a loose guard ring and/or covers.

8. To begin troweling, rotate the throttle (Figure 27) toward the

RUN

" position.

"

CLOSED

position. If the engine has not

Figure 27. Throttle (Run Position)

Figure 25. Engine Choke Lever

5. Grasp the starter grip (Figure 26) 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.

BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 25

BA-SERIES TROWEL — 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 “

Concrete Institute, Detroit, Michigan

section of this manual for more information.

Slabs on Grade

” published by the

. Read the “Training”

American

Pitching The Blades

Quick Pitch Handle

1. To pitch the blades upwards using the

T-handle

and pull the
the

, (Figure 28) simply squeeze the trigger lock

T-handle

T-handle

towards the engine will cause the blades

towards the operator. Pushing

"Quick-Pitch

Maneuvering the Trowel

Get into the operator’s position behind the handle. With a

1.

secure foothold and a firm grasp on the handles slowly
increase the engine speed until the desired blade speed is
obtained.

If your trowel has a
speed with the throttle, then pull on the hand clutch lever to
start the blades turning. Adjust the blade speed after the hand

™"

clutch is fully engaged.

to lay flat.

hand clutch (Figure 30)

, set your engine

Figure 30. Hand Clutch Lever

Figure 28. Quick-Pitch™ T- Handle

Standard Handle

1. To pitch the blades upwards using the "
(Figure29) simply turn the

star-wheel

Standard

clockwise. Turning the

" handle,

star wheel counter clockwise will cause the blades to lay flat.

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

lift up

left,

down

3. The best method for finishing concrete is to slowly walk
backwards (Figure 31) 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.

on the handle, to move machine to the right,

on the handle.

push

Figure 29. Standard Handle

PAGE 26 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

BA-SERIES TROWEL — OPERATION

Figure 32 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.

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

NEVER place your
guard rings while starting or operating this
equipment.

BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 27

feet

Figure 31. Maneuvering The Trowel

CAUTIONCAUTION

CAUTION

CAUTIONCAUTION

or

hands

inside the

ALWAYS keep clear of
parts while operating this equipment.

rotating

or

moving

BA-SERIES TROWEL — OPTIONS

Blades

NOTE

Blades should be changed when they fail to

Specification and part number

finish concrete in a satisfactory manner.

are subject to change without

notice.

Blades are a vital part of finishing concrete. This trowel, or

finisher

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

32) 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.

, has been designed to finish concrete and the blades are

float/finish

(Figure

Clip-On Float Blades (Optional)

These blades will clip (Figure 34) 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.

Float Discs (Optional)

These round discs (Figure 35) 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 34. Clip-On Float Blade

Figure 32. Combination Blade

Finish Blades (Optional)

These blades (Figure 33) 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 33. Finish Blade

PAGE 28 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

Figure 35. Float Disk

BA-SERIES TROWEL — OPTIONS

Grinding Attachments

Available grinding attachments are used for grinding surface
imperfections or joints. These attachments allow greater utilization
of your trowel. Figure 36 illustrates a typical grinding disk assembly,
complete with hub and stone mounting plate.

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 38) that will adjust all of
the trowel arms consistently. The Trowel Arm Fixture P/N is 1817.

Figure 36. Grinding Disk

Lifting Bale

Figure 38. Trowel Arm Adjustment Fixture

There is a heavy duty, center balance type lifting bale (Figure 37)
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.

Figure 37. Lifting Bale

BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 29

BA-SERIES TROWEL — MAINTENANCE

NOTE

Trowel Arm Adjustment Procedure

See the engine manual supplied with your
machine for appropriate engine maintenance
schedule and troubleshooting guide for
problems.

At the front of the book (Page 7) there is a “

Checklist

basis.

CAUTION!CAUTION!

CAUTION!

CAUTION!CAUTION!

ALWAYS allow the engine to cool before
servicing. NEVER attempt any maintenance work
on a

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.

”. Make copies of this checklist and use it on a daily

hot!

engine.

fill as necessary.

Daily Pre-Operation

level

, clean area to test the trowel prior to and after is essential.

A
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 39 below illustrates a "

trowel arms

touching (0.10" max. clearance) lower wear plate. All alignment
bolts should be spaced the same distance from the lower wear
plate.

NOTE
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

2. Replace blades if necessary.

3. Check and clean or replace the engine air filter as
necessary.

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.

PAGE 30 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

Figure 40 below illustrates the "
plate (as shipped from the factory).

Figure 39. Worn Spider Plate

correct alignment

Figure 40. Correct Spider Plate Alignment

" for a spider

BA-SERIES TROWEL — MAINTENANCE

2. Start engine, and bring trowel blades up to full speed and look
for the following conditions:

■

Does the trowel have a perceived rolling or bouncing
motion when in use?

■

Look at the trowel while it is running, does the guard
ring “rock up and down” relative to the ground?

Spider Removal

1. Once it is determined that an adjustment is required, remove
the spider assembly from the gearbox shaft as follows:

a. Locate the cone point square head set screw (Figure 41)

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

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

c. If the trowel is equipped with an outer stabilizer ring

screw, and carefully lift the
of the spider assembly. A slight tap with a rubber mallet
may be necessary to dislodge the spider from the main
shaft of the gearbox.

(Figure 42), remove the four bolts at the end of each
spider arm.

upper trowel assembly

off

Figure 42. Stabilizer Ring

d. Examine stabilizer ring for out of round or bends. If ring

is damaged, replace ring. If ring is found to be correct with
no damage, set aside.

Trowel Arm Removal

1. Each trowel arm is held in place at the spider plate by a hex
head bolt (zerk grease fitting) and a roll pin. Remove both the
hex head bolt and the roll pin (Figure 43) from the spider
plate.

2. Remove the trowel arm from the spider plate.

Figure 41. Spider/Gearbox Removal

BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 31

Figure 43. Removing Roll Pin

and Zerk Grease Fitting

BA-SERIES TROWEL — MAINTENANCE

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

4. Examine the bronze trowel arm bushing insert (Figure 44),
clean if necessary. Replace bushing if out of round or worn.

Trowel Arm Flatness Test

1. Using a piece of 3/4 inch thick steel plate or any surface which

true

is
flatness.

2. Check each of the six sides of the trowel arm (hex section
only) using a ten thousands of an inch (max.) feeler gauge
(Figure 46) between the flat of the trowel arm and an

tremely flat

Figure 44. Bronze Bushings

Trowel Blade Removal

1. Remove the trowel blades from the trowel arm by removing
the three hex head bolts (Figure 45) from the trowel arm. Set
blades aside.

and

flat

, check all

test surface.

six sides

of each trowel arm for

ex

-

Figure 45. Trowel Blades

2.

Wire brush

trowel arm. Repeat this for the remaining three arms.

any build-up of concrete from all six sides of the

Figure 46. Trowel Arm Flatness Test

3. If the trowel arm is found to be
trowel arm. A bent trowel will not allow the trowel to operate
in a smooth fluid rotation.

4. Next, check each of the six sides of the round machined shaft
section of the trowel arm. Each section should have the

clearance

test surface.

between the round of the trowel arm shaft and the

NOTE

uneven

or

bent

, replace the

same

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 32 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

BA-SERIES TROWEL — MAINTENANCE

Trowel Arm Adjustment

Shown in Figure 47 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 1817. Set the
adjustment tool for a clock-wise blade rotation, meaning the
fixture arm is in the "UP" position.

3. Un-screw the locking bolts on the adjustment tool, and place
the trowel arm into the adjustment fixture channel as shown
in Figure 48. A
holes on the trowel arm. Make sure to align the trowel
adjustment bolt with the fixture adjustment bolt.

4. Using an allen wrench, tighten the locking bolts on the
adjustment tool and securely lock the trowel arm in place.

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

6. After the correct adjustment has been made, tighten lock nut
on trowel arm lever to lock in place.

7. Loosen locking bolts on adjustment fixture, and remove
trowel arm from fixture.

8. Repeat steps 2-7 for the remaining trowel arms.

Re-Assembly

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.

thin shim

may be required to cover the blade

2. Make sure that the bronze trowel arm bushing is not damage

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

6. Insert all trowel arms with levers into spider plate (with bronze

7. Lock trowel arms in place by tightening the hex head zerk

Figure 47. Trowel Arm Adjustment Tool

2. Trowels manufactured prior to June of 1982 require that the
distance from the end of the adjusting bolt and the fixture arm
must be 7/8" (Figure 48). Conversely, trowels manufactured
after June of 1982 require that the distance from the end of
the adjusting bolt and the fixture arm must be 1/2".

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

9. Install stabilizer ring onto spider assembly.

10. Reinstall lower wear plate,

or out of round. Clean the bushing if necessary. If the bronze
bushing is damage or worn, replace it.

to exert tension on the trowel arm.

bushing already installed) using care to align grease hole on
bronze bushing with grease hole fitting on spider plate.

grease fitting and jam nut.

thrust collar

in the

ring

the spider shaft. Make sure that there is little or no lateral
movement between the thrust collar and the spider shaft.

reverse order

that they were dis-assembled onto

and

upper wear

BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 33

BA-SERIES TROWEL — MAINTENANCE

11. Carefully lift

the upper trowel assembly

, line up the key-

way on gear box main shaft and insert into spider assembly.

12. Reinstall square head cone point into spider plate and
tighten in place. Tighten jam nut. Use care in making sure
point of set screw engages groove in gear box main shaft.

Hand Clutch Adjustment

Some trowels are equipped with a hand-operated clutch instead
of an automatic centrifugal clutch. Two types of hand clutches
have been installed. Both are belt-tightener type clutches. They
operate by removing
power from the engine to the gearbox.

13. Lubricate all grease points (zerk fittings) with premium

Lithum 12"

"

based grease, conforming to NLG1 Grade #2

There are two reasons to adjust the hand clutch: 1) operator
comfort; 2) initial belt stretch and break-in.

consistency.

Testing

1. Place trowel in test area, start engine and test trowel for
smoothness.

The easiest and most simple adjustment is to adjust the clutch
cable housing using the adjustment nut (Figure 48) located on the
clutch lever. Rotating the nut provides either more or less
(depending upon the direction of rotation) clutch engagement.

2. If trowel bounces has excessive vibration or does not run
smoothly repeat alignment procedure.

Changing a Blade

Whiteman recommends that

same time

. The machine may wobble or bounce if only some of

all the blades be changed at the

the blades are changed at one time.

slack

in the V-belt which then transmits

Figure 48. Hand Clutch Adjustment

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.

Hand Clutch Disengagement

1. Start the trowel as outlined in the "
this manual. Move the throttle lever so that the engine is
running about 1/4 to 1/3 of full speed.

NOTE

Before removing the blades, please note
the orientation of the blade on the trowel
arm.

2. Grip the trowel handle firmly and carefully engage the clutch
by squeezing the clutch lever toward the handle with your left
hand. After the trowel is stabilized and you feel comfortable
with its operation, use your right hand to adjust the housing
adjustment nut.

3.

1. Remove the three bolts and lock washers that secure the
blade to the trowel arm. Remove the blade.

2. Using a wire brush, scrape all concrete particles and foreign
debris from the trowel arm.

3. Install the new trowel blade onto the trowel arm. Make sure
blade is installed correctly, maintaining the proper orienta­tion for direction of rotation

4. Reinstall

the three bolts and lock washers that secure the

.

blade to the trowel arm. Tighten all three bolts securely.

Rotating the nut so that it backs out of the lever housing
increases the engagement and also the squeezing force
required to keep it engaged.

Too much squeezing force may cause premature hand
fatigue. Too little squeezing force may cause belt slippage
and premature belt wear. Each operator should experiment
with the adjustment to get the optimum combination of
squeeze force and belt grip.

4. After initial break-in (approximately 8 hours) the above
procedure should be repeated to attain optimum operator
comfort and belt wear.

Initial Start-up

" section in

5. Repeat steps 1-4 for all remaining blades.

PAGE 34 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

After considerable belt wear, the adjustments mentioned

5.

above may have a little or no effect on clutch engagement. If
this is the case, the belt should be replaced.

BA-SERIES TROWEL — TROUBLESHOOTING (TROWEL)

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BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 35

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PAGE 36 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)

BA-SERIES TROWEL — TROUBLESHOOTING (ENGINE)

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BA-SERIES WALK-BEHIND TROWEL — PARTS & OPERATION MANUAL — REV. #3 (11/30/04) — PAGE 37

BA-SERIES TROWEL — EXPLANATION OF CODES IN REMARKS COLUMN

How to read the marks and remarks used in this parts book.

Section 1: Items Found In the “Remarks” Column

Serial Numbers-Where indicated, this indicates a serial
number range (inclusive) where a particular part is used.

Model Number-Where indicated, this shows that the
corresponding part is utilized only with this specific model
number or model number variant.

Section 2: Items Found In the “Remarks” Column

Serial Numbers-Where indicated, this indicates a serial number
range (inclusive) where a particular part is used.

Model Number-Where indicated, this shows that the
corresponding part is utilized only with this specific model number
or model number variant.

Section 3: Items Found In the “Items Number” Column

All parts with same symbol in the number column,

■

, belong to the same assembly or kit.

Note: If more than one of the same reference number is listed,
the last one listed indicates newest (or latest) part available.

NOTE

, #, +, %, or

*

The contents of this parts catalog are subject to
change without notice.

PAGE 38 — BA-SERIES WALK-BEHIND TROWEL— PARTS & OPERATION MANUAL — REV. #3 (11/30/04)