MULTIQUIP BS90C Leitfaden

OPERATION AND PARTS MANUAL

THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

To ﬁnd the latest revision of this

publication, visit our website at:

www.multiquip.com

MODEL BS90C

WALK-BEHIND TROWEL

(SUBARU EX270DE5013 GASOLINE ENGINE)

Revision #0 (9/4/15)

P/N 30226

Original Version

PAGE 2 — BS90C WALK-BEHIND TROWEL • OPERATION AND PARTS MANUAL — REV. #0 (9/4/15)

its constituents, and some dust created

of California to cause cancer, birth

defects and other reproductive harm.

by power sanding, sawing, grinding,

drillingandotherconstructionactivities

contains chemicals known to the State

Some examples of these chemicals are:

Leadfromlead-basedpaints.

Crystallinesilicafrombricks.

Cementandothermasonryproducts.

Arsenicandchromiumfromchemically

treatedlumber.

Your risk from these exposures varies,

dependingonhowoftenyoudothistype

of work. To reduce your exposure to

these chemicals: work in aALWAYS

well ventilated area, and work with

approved safety equipment, suchas

dust masks that are specially designed

to filter out microscopic particles.

Gasoline engine exhaust and some of

FUEL AND CHEMICAL EXPOSURE WARNINGS

BS90C WALK-BEHIND TROWEL • OPERATION AND PARTS MANUAL — REV. #0 (9/4/15)— PAGE 3

Grinding/cutting/drilling of masonry, concrete, metal and

other materials with silica in their composition may give

off dust or mists containing crystalline silica. Silica is a

basic component of sand, quartz, brick clay, granite and

numerous other minerals and rocks. Repeated and/or

substantial inhalation of airborne crystalline silica can

cause serious or fatal respiratory diseases, including

silicosis.Inaddition, California and some other

authorities have listed respirable crystalline silica as a

substance known to cause cancer. When cutting such

materials, always follow the respiratory precautions

mentioned above.

WARNING

Grinding/cutting/drilling of masonry, concrete, metal and

other materials can generate dust, mists and fumes

containing chemicals known to cause serious or fatal

injury or illness, such as respiratory disease, cancer,

birth defects or other reproductive harm. If you are

unfamiliar with the risks associated with the particular

process and/or material being cut or the composition of

the tool being used, review the material safety data

sheet and/or consult your employer, the material

manufacturer/supplier, governmental agencies such as

OSHA and NIOSH and other sources on hazardous

materials. California and some other authorities, for

instance, have published lists of substances known to

cause cancer, reproductive toxicity,or other harmful

effects.

Control dust, mist and fumes at the source where

possible. In this regard use good work practices and

follow the recommendations of the manufacturers or

suppliers, OSHA/NIOSH, and occupational and trade

associations.Water should be used for dust

suppression when wet cutting is feasible. When the

hazards from inhalation of dust, mists and fumes cannot

be eliminated, the operator and any bystanders should

always wear a respirator approved by NIOSH/MSHA for

the materials being used.

WARNING

SILICOSIS WARNING RESPIRATORY HAZARDS

SILICOSIS/RESPIRATORY WARNINGS

PAGE 4 — BS90C WALK-BEHIND TROWEL • OPERATION AND PARTS MANUAL — REV. #0 (9/4/15)

TABLE OF CONTENTS

NOTICE

Speciﬁcations and part numbers are subject to change

without notice.

BS90C WALK-BEHIND

TROWEL

Fuel And Chemical Exposure Warnings.................. 2

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

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

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

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

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

Safety Information .............................................. 8-12

Trowel Speciﬁcations/Dimensions ......................... 13

Engine Speciﬁcations ............................................ 14

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

Trowel Components.......................................... 16-17

Engine Components.............................................. 18

Assembly And Installation ................................ 19-23

Inspection ......................................................... 23-24

Operation.......................................................... 25-29

Options ............................................................. 30-31

Maintenance..................................................... 32-40

Troubleshooting ................................................ 41-44

Wiring Diagram...................................................... 45

Explanation Of Code In Remarks Column............. 46

Suggested Spare Parts ......................................... 47

Component Drawings

Nameplates And Decals................................... 48-49

Standard Handle Assembly.............................. 50-53

Quick Pitch Handle Assembly .......................... 54-57

Guard Ring And Engine Mounting Assembly ... 58-59

Stabilizer Ring Assembly.................................. 60-61

Gearbox Assembly ........................................... 62-63

Engine And Clutch Assembly ........................... 64-65

Spider Assembly............................................... 66-67

Blades And Pan Assembly ............................... 68-69

Honda GX270UT2QA2 Gasoline

Engine

Crankcase Assembly........................................ 70-71

Crankshaft Assembly........................................ 72-73

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

Air Cleaner Assembly....................................... 76-77

Governor Assembly .......................................... 78-79

Blower Assembly .............................................. 80-81

Recoil Starter Assembly ................................... 82-83

Fuel Tank Assembly.......................................... 84-85

Carburetor Assembly........................................ 86-87

Ignition Coil Assembly ...................................... 88-89

Oil Sensor Assembly ........................................ 90-91

Terms And Conditions Of Sale — Parts ................ 92

BS90C WALK-BEHIND TROWEL • OPERATION AND PARTS MANUAL — REV. #0 (9/4/15)— PAGE 5

PARTS ORDERING PROCEDURES

www.multiquip.com

Ordering parts has never been easier!

Choose from three easy options:

WE ACCEPT ALL MAJOR CREDIT CARDS!

When ordering parts, please supply:

❒Dealer Account Number

❒Dealer Name and Address

❒Shipping Address (if different than billing address)

❒Return Fax Number

❒Applicable Model Number

❒Quantity, Part Number and Description of Each Part

❒Specify Preferred Method of Shipment:

✓ UPS/Fed Ex ✓DHL

■Priority One ✓Tr u ck

■Ground

■Next Day

■Second/Third Day

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.

Order via Internet (Dealers Only):

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

■View Parts Diagrams

■Order Parts

■Print Speciﬁcation Information

Note: Discounts Are Subject To Change

Goto www.multiquip.com and click on

Order Parts to log in and save!

Use the internet and qualify for a 5% Discount

on Standard orders for all orders which include

complete part numbers.*

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)

Fax your order in and qualify for a 2% Discount

on Standard orders for all orders which include

complete part numbers.*

Order via Phone: Domestic (US) Dealers Call:

1-800-427-1244

Best Deal!

International Customers should contact

their local Multiquip Representatives for

Parts Ordering information.

Non-Dealer Customers:

Contact your local Multiquip Dealer for

parts or call 800-427-1244 for help in

locating a dealer near you.

Note: Discounts Are Subject To Change

Effective:

January 1st

, 2006

NOTICE

All orders are treated as Standard Orders and will

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

PAGE 6 — BS90C WALK-BEHIND TROWEL • OPERATION AND PARTS MANUAL — REV. #0 (9/4/15)

TRAINING CHECKLIST

Training Checklist

No. Description OK? Date

1Read operation manual

completely.

Machine layout, location of

components, checking of engine

oil level.

3 Fuel system, refueling procedure.

4Operation of controls (machine

not running).

5Safety controls, safety stop switch

operation.

6 Emergency stop procedures.

7 Startup of machine, engine choke.

8 Maintaining a hover.

9 Maneuvering.

10 Pitching.

11 Concrete ﬁnishing techniques.

12 Shutdown of machine.

13 Lifting of machine (lifting bale).

14 Machine transport and storage.

BS90C WALK-BEHIND TROWEL • OPERATION AND PARTS MANUAL — REV. #0 (9/4/15)— PAGE 7

DAILY PRE-OPERATION CHECKLIST

Daily Pre-Operation Checklist      

1 Engine oil level

2 Gearbox oil level

3 Condition of blades

4 Blade pitch operation

5 Safety stop switch operation

PAGE 8 — BS90C WALK-BEHIND TROWEL • OPERATION AND PARTS MANUAL — REV. #0 (9/4/15)

SAFETY INFORMATION

Do not operate or service the equipment before reading

the entire manual. Safety precautions should be followed

at all times when operating this equipment.

Failure to read and understand the safety

messages and operating instructions could

result in injury to yourself and others.

SAFETY MESSAGES

The four safety messages shown below will inform you

about potential hazards that could injure you or others.The

safety messages speciﬁcally address the level of exposure

to the operator and are preceded by one of four words:

DANGER, WARNING, CAUTION

or NOTICE.

SAFETY SYMBOLS

DANGER

Indicates a hazardous situation which, if not avoided,

WILL result in DEATH or SERIOUS INJURY.

WARNING

Indicates a hazardous situation which, if not avoided,

COULD result in DEATH or SERIOUS INJURY.

CAUTION

Indicates a hazardous situation which, if not avoided,

COULD result in MINOR or MODERATE INJURY.

NOTICE

Addresses practices not related to personal injury.

Potential hazard associated with the operation of this

equipment will be referenced with hazard symbols

which

may appear throughout this manual in conjunction with

safety messages.

Warning decals

associated with the operation of this

equipment are deﬁned below:

Inhaling exhaust fumes can result in severe

injury or death.

Only operate equipment in well ventilated areas.

inhale exhaust gases/fumes.DO NOT

WARNING

Lethal Exhaust Gas Hazard

HOT PARTS can burn skin.

CAUTION

Burn Hazard

touch hot parts. Allow machine a sufficient

amount of time to cool before performing maintenance.

DO NOT

Gasoline fuel can cause fire or explosion. Stop

engine before refueling.

Keep cigarettes, sparks and flames away from hot

surfaces.

WARNING

Explosive Fuel Hazard

SYMBOL SAFETY HAZARD

Keep hands and feet clear of guard rings.

Stop engine before servicing.

WARNING

Rotating Blade Hazard

To avoid injury you must read and

understand operator’s manual before

using this machine.

P/N 23700

allow any person

to stand underneath the trowel while lifting.

NEVER

P/N 36099

ALWAYS wear protective clothing when

operating this equipment

This machine to be operated by qualified

personnel. Ask for training as needed.

Lifting Crush Hazard

lift trowel with pans attached.DO NOT

WARNING

Read Manual

NEVER operate this equipment with guards

removed. Keep hands clear.

WARNING

Training

Guard Hazard

WARNING

make sure handle is securely attached.

On Quick Pitch™ models make sure T-Handle

latch is locked (engaged).

ALWAYS

DECAL SAFETY HAZARD

BS90C WALK-BEHIND TROWEL • OPERATION AND PARTS MANUAL — REV. #0 (9/4/15)— PAGE 9

SAFETY INFORMATION

GENERAL SAFETY

CAUTION



NEVER operate this equipment without proper protective

clothing, shatterproof glasses, respiratory protection,

hearing protection, steel-toed boots and other protective

devices required by the job or city and state regulations.



Avoid wearing jewelry or loose ﬁtting clothes that may

snag on the controls or moving parts as this can cause

serious injury.



NEVER operate this equipment when not

feeling well due to fatigue, illness or when

under medication.



NEVER operate this equipment under the

inﬂuence of drugs or alcohol.



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

that would constitute a hazard while the equipment is

in operation.



No one other than the operator is to be in the working

area when the equipment is in operation.



DO NOT use the equipment for any purpose other than

its intended purposes or applications.

NOTICE



This equipment should only be operated by trained and

qualiﬁed personnel 18 years of age and older.



Whenever necessary, replace nameplate, operation and

safety decals when they become difﬁcult read.



Manufacturer does not assume responsibility for any

accident due to equipment modiﬁcations. Unauthorized

equipment modiﬁcation will void all warranties.

NEVER

use accessories or attachments that are not

recommended by Multiquip for this equipment. Damage

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

ALWAYS know the location of the nearest

ﬁre extinguisher.

ALWAYS know the location of the nearest

ﬁrst aid kit.

ALWAYS know the location of the nearest phone or

keep

a phone on the job site.

Also, know the phone numbers

of the nearest ambulance, doctor and

ﬁre department.

This information will be invaluable in the case of an

emergency.

PAGE 10 — BS90C WALK-BEHIND TROWEL • OPERATION AND PARTS MANUAL — REV. #0 (9/4/15)

SAFETY INFORMATION

TROWEL SAFETY

DANGER



Engine fuel exhaust gases contain poisonous carbon

monoxide. This gas is colorless and odorless, and can

cause death if inhaled.



The engine of this equipment requires an adequate free

ﬂow of cooling air. NEVER operate this equipment in any

enclosed or narrow area

where free ﬂow of the air is

restricted. If the air ﬂow is

restricted it will cause injury

to people and property and

serious damage to the

equipment or engine.



NEVER operate the equipment in an explosive

atmosphere or near combustible materials.An

explosion or ﬁre could result causing severe

bodily harm or even death.

WARNING



ALWAYS keep clear of rotating or moving

parts while operating the trowel.



DO NOT start or operate the trowel if the

drive train will not disengage. Centrifugal

force between the trowel and surface when starting can

cause uncontrolled handle movement that can cause

serious injury. The handle must not move while pulling

the engine recoil starter.



NEVER disconnect any emergency or safety devices.

These devices are intended for operator safety.

Disconnection of these devices can cause severe injury,

bodily harm or even death. Disconnection of any of these

devices will void all warranties.

CAUTION



NEVER stand on trowel during operation.



NEVER lubricate components or attempt service on a

running machine.



NEVER place your feet or hands inside the guard rings

while starting or operating this equipment.

DANGEROUS

GAS FUMES

ALWAYS keep work area

clear around the trowel.

Make sure it is free of

debris and objects.

NOTICE

ALWAYS keep the machine in proper running condition.



Fix damage to machine and replace any broken parts

immediately.

ALWAYS

store equipment properly when it is not being

used. Equipment should be stored in a clean, dry location

out of the reach of children and unauthorized personnel.



A safety manual for operating and maintenance

personnel of concrete power trowels produced by the

Association of Equipment Manufacturers (AEM) can be

obtained for a fee by ordering through their website at

www.aem.org.

Order FORM PT-160

ENGINE SAFETY

WARNING

DO NOT

place hands or fingers inside engine

compartment when engine is running.

NEVER

operate the engine with heat shields or

guards removed.

Keep ﬁngers, hands hair and clothing away

from all moving parts to prevent injury.

DO NOT remove the engine oil drain plug

while the engine is hot. Allow the oil to cool before

performing maintenance. This will prevent scalding of

personnel.

CAUTION

NEVER touch the hot exhaust manifold,

mufﬂer or cylinder. Allow these parts to cool

before servicing equipment.

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