Ingersoll-Rand BL-275 Manual de usuario

6901968 (6-12) Printed in U.S.A. © Ingersoll Rand Company 2002

Service

Manual

(S/N 570811001 & Above)

BL-27

Doosan purchased Bobcat Company from Ingersoll-Rand Company in

2007. Any reference to Ingersoll-Rand Company or use of trademarks,

service marks, logos, or other proprietary identifying marks belonging

to Ingersoll-Rand Company in this manual is historical or nominative

in nature, and is not meant to suggest a current affiliation between

Ingersoll-Rand Company and Bobcat Company or the products of

either.

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BL275 Loader Backhoe

Service Manual

WARNING

Instructions are necessary before operating or servicing machine. Read

and understand the Operation & Maintenance Manual, Handbook and signs

(decals) on machine. Follow warnings and instructions in the manuals

when making repairs, adjustments or servicing. Check for correct function

after adjustments, repairs or service. Untrained operators and failure to

follow instructions can cause injury or death. W-2003-0199

MAINTENANCE SAFETY

Never service the Ingersoll-Rand

Loader Backhoe without

instructions.

Have good ventilation when

welding or grind ing painted

parts.

Wear dust mask when grinding

painted parts. Toxic dust and gas

can be produced.

MSW17-0502

Vent exhaust to outside when

engine must be run for service.

Exhaust system must be tightly

sealed. Exha ust Fumes can kill

without warning.

Never work on loa der backhoe

with lift arms raised unless

supported by an approved lift

arm support device.

Always lower the back hoe

bucket to the ground before

doing any maintenance.

Safety Alert Symbol: This symbol with a warning statement, means: “Warning, be alert! Your safety is

involved!” Carefully read the message that follows.

Always use an approved lift arm

support device when servicing the

loader backhoe with the lift arm

raised. Replace the lift arm support

device if damaged or missing.

Disconnecting or loosening any

hydraulic tubeline, hoe, fitting

component, or part failure can

cause lift arms or backhoe boom

to drop.

Cleaning and maintenance are

required daily.

NEVER modify equipment or add

attachments not approved by

Ingersoll-Rand.

Keep body, jewelry and clothing

away from moving parts,

electrical contact, hot p arts and

exhaust.

Wear eye protection to gua rd

from battery acid, compressed

springs, fluids under pressure

and flying debris when engines

are running or tools are used.

Use eye protection approved for

type of welding.

Keep engine cover closed except

for service. Close and latch

engine cover before operating

the loader backhoe

Lead-acid batteries produce

flammable and explosive gases.

Keep arcs, sparks, flames and

lighted tobacco away from

batteries.

Batteries contain acid which

burns eyes or skin on contact.

Wear protective clothing. If acid

contacts body, flush well with

water. For eye contact flush well

and get immediate medical

attention.

Stop, cool and clean engine of

flammable materials before

checking fluids.

Never service or adjust machine

with the engine running unless

instructed to do so in the

manual.

Avoid contact with leaking

hydraulic fluid or diesel fuel

under pressure. It can penetrate

the skin or eyes.

Never fill fuel tank with engine

running, while smoking or when

near open flame.

Maintenance procedures which are given in the Operation & Maintenance Manual can be performed by

the owner/operator without any specific technical training. Maintenance procedures which are not in the

Operation & Mai ntenance Manual must be performed ONLY BY QUALIFIED INGERSOLL-RAND

SERVICE PERSONNEL. Always use genuine Ingersoll-Rand replacement parts.

B-658

WRONG

B-16571

WRONG

CORRECT

B-1652

CORRECT

B-10731

B-1676

CORRECT

WRONG

B-1657

WRONG

B-1657

WRONG

B-1651

WRONG

B-1669

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BL275 Loader Backhoe

Service Manual

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ALPHABETICAL INDEX

AIR CLEANER ........................................................ 70-01

AIR CLEANER SERVICE ....................................... 10-01

ALTERNATOR ........................................................ 60-01

ALTERNATOR BELT............................................... 10-01

ARM CYLINDER..................................................... 20-01

ARM ........................................................................ 50-01

AXLE AND DIFFERENTIAL (FRONT).................... 40-01

AXLE AND DIFFERENTIAL (REAR) ...................... 40-01

AXLE TOE-IN.......................................................... 10-01

BACKHOE BOOM LOCK........................................ 10-01

BACKHOE CONTROL VALVE................................ 20-01

BATTERY................................................................ 60-01

BOB-TACH.............................................................. 50-01

BOB-TACH HAND LEVER...................................... 10-01

BOOM ..................................................................... 50-01

BOOM CYLINDER .................................................. 20-01

BRAKE CALIPER ................................................... 40-01

BUCKET ................................................................. 50-01

BUCKET CYLINDER .............................................. 20-01

CAB DOOR ............................................................. 50-01

CAB LIGHTS........................................................... 60-01

COMPONENTS ...................................................... 80-01

CONVERSIONS ................................................SPEC-01

DRIVESHAFT ......................................................... 40-01

DROP BOX ............................................................. 40-01

ELECTRICAL SYSTEM INFORMATION ................ 60-01

ENCLOSED CAB.................................................... 50-01

ENGINE .................................................................. 70-01

ENGINE COMPONENENTS AND TESTING ......... 70-01

ENGINE COOLING SYSTEM................................. 10-01

ENGINE COVER ......................................... 10-01, 50-01

ENGINE LUBRICATION SYSTEM.......................... 10-01

ENGINE SIDE COVERS......................................... 50-01

ENGINE SPECIFICATIONS...............................SPEC-01

ENGINE SPEED CONTROL .................................. 70-01

FENDER ................................................................. 50-01

FLOOR PANELS..................................................... 50-01

FLYWHEEL ............................................................. 70-01

FLYWHEEL HOUSING ........................................... 70-01

FRONT AXLE .............................................. 10-01, 40-01

FRONT AXLE PIVOT FRAME ................................ 50-01

FRONT LIGHTS...................................................... 60-01

FRONT WIPER....................................................... 60-01

FUEL LEVEL SENDER........................................... 60-01

FUEL SYSTEM ....................................................... 10-01

FUEL TANK............................................................. 50-01

GEAR PUMP .......................................................... 20-01

GRILL...................................................................... 50-01

GRILL FRAME ........................................................ 50-01

HEATER FAN ..........................................................80-01

HEATER UNIT .........................................................80-01

HYDRAULIC FILTER HOUSING .............................20-01

HYDRAULIC FLUID RESERVOIR ..........................20-01

HYDRAULIC SYSTEM INFORMATION ..................20-01

HYDRAULIC/HYDROSTATIC FLUID

SPECIFICATIONS ............................................ SPEC-01

HYDRAULIC/HYDROSTATIC SYSTEM..................10-01

HYDROSTATIC DRIVE MOTOR .............................30-01

HYDROSTATIC PUMP ............................................30-01

HYDROSTATIC SYSTEM INFORMATION..............30-01

HYDROSTATIC TESTING.......................................30-01

INSTRUMENT PANEL.............................................60-01

LOADER BACKHOE SPECIFICATIONS........... SPEC-01

LOADER BACKHOE TORQUE ......................... SPEC-01

LOADER CONTROL VALVE ...................................20-01

LIFT ARMS..............................................................50-01

LIFT ARM SUPPORT DEVICE................................10-01

LIFT CYLINDER ......................................................20-01

LIFTING AND BLOCKING THE

LOADER BACKHOE ...............................................10-01

LUBRICATING THE LOADER BACKHOE ..............10-01

MAIN RELIEF VALVE ..............................................20-01

MUFFLER................................................................70-01

OIL COOLER...........................................................30-01

OPERATOR CAB ....................................................50-01

OPERATOR SEAT...................................................50-01

PARKING BRAKE....................................................40-01

PORT RELIEF VALVE

(BACKHOE CONTROL VALVE) .............................20-01

PORT RELIEF VALVE

(LOADER CONTROL VALVE)................................20-01

RADIATOR ..............................................................70-01

REAR AXLE .................................................10-01, 40-01

REAR WINDOW ......................................................50-01

REAR WIPER..........................................................60-01

RECONDITIONING THE ENGINE ..........................70-01

RUBBER DRIVE COUPLER ...................................70-01

SERVICE SCHEDULE ............................................10-01

SIDE SHIFT LOCK CYLINDER...............................20-01

STABILIZER FRAME...............................................50-01

STABILIZER CYLINDER .........................................20-01

STEERING ANGLE ADJUSTMENT

(FRONT AXLE)......................................................40-01

STEERING ANGLE ADJUSTMENT (REAR AXLE)40.01

STEERING CYLINDER (FRONT) ...........................20-01

STEERING CYLINDER (REAR)..............................20-01

STEERING PUMP...................................................20-01

STEERING VALVE ..................................................20-01

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ALPHABETICAL INDEX (CONT’D)

STARTER ................................................................60-01

SWING CYLINDER .................................................20-01

SWING FRAME .......................................................50-01

TILT CYLINDER ......................................................20-01

TIRE MAINTENANCE .............................................10-01

TORQUE SPECIFICATIONS

FOR BOLTS..................................................... SPEC-01

TOWING THE LOADER BACKHOE .......................10-01

TRANSPORTING THE LOADER BACKHOE..........10-01

TRAVEL PEDAL ......................................................20-01

TROUBLESHOOTING.............................................70-01

TURBOCHARGER ..................................................70-01

TURN INDICATOR LIGHTS (FRONT).....................60-01

TURN INDICATOR LIGHTS (REAR) .......................60-01

X-CHANGE™ ..........................................................50-01

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BL-275 Loader Backhoe

Revised Apr. 03 i Service Manual

CONTENTS

FOREWORD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II

SAFETY INSTRUCTIONS FOR INGERSOLL RAND LOADER

BACKHOE AND ATTACHMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . V

SERIAL NUMBER LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . VII

FIRE PREVENTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VI

DELIVERY REPORT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VII

INGERSOLL RAND LOADER IDENTIFICATION . . . . . . . . . . . . . .VIII

SAFETY & MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-01

HYDRAULIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-01

HYDROSTATIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-01

DRIVE SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-01

MAIN FRAME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-01

ELECTRICAL SYSTEM AND ANALYSIS . . . . . . . . . . . . . . . . . . 60-01

ENGINE SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70-01

HEATER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80-01

SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-01

SAFETY &

HYDROSTATIC

MAIN FRAME

SYSTEM

DRIVE

ELECTRICAL

MAINTENANCE

SYSTEM &

ANALYSIS

ENGINE

SERVICE

ENGINE

SPECIFICATIONS

HEATER

SPECIFICATIONS

HYDRAULIC

SYSTEM

SPECIFICATIONS

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BL-275 Loader Backhoe

Revised Apr. 03 ii Service Manual

FOREWORD

This manual is for the Ingersoll Rand loader mechanic. It provides necessary servicing and adjustment

procedures for the Ingersoll Rand loader and its component parts and systems. Refer to the Operation

& Maintenance Manual for operating instructions, Starting procedure, daily checks, etc.

A general inspection of the following items must be made after the loader has had service or repair:

1. Check that ROPS mounting

hardware is tightened and is

Ingersoll Rand approved.

9. Bob-Tach wedges and

linkages must function

correctly and be in good

condition.

2. The seat belt must be

correctly installed, functional

and in good condition.

10. Safety treads must be in good

condition.

3. Check lift arm support device,

replace if damaged.

11. Check for correct function of

indicator lamps (Optional on

some models.

4. Machine signs must be

legible and in the correct

location.

12. Check hydraulic fluid level,

engine oil level and fuel

supply.

5. Foot pedal must return to

neutral.

13. Inspect for fuel, oil or

hydraulic fluid leaks.

6. Check for correct function of

the work lights

14. Lubricate the loader backhoe.

7. The parking brake must

function correctly.

15. Check the condition of the

battery and cables.

8. Enclosure door latches must

open and close freely.

16. Inspect the air cleaner for

damage or leaks. Check the

condition of the element.

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BL-275 Loader Backhoe

Revised Apr. 03 iii Service Manual

17. Check the electrical charging

system.

20. Operate the loader and check

all functions.

18. Check tires for wear and

pressure.

21. Check for any field

modification not completed.

19. Inspect for loosen or broken

parts or connections.

22. Recommend to t he owner

that all necessary corrections

be made before the machine

is returned to service.

CALIFORNIA

PROPOSITION 65 WARNING

Diesel engine exhaust and some of its

constituents are known to the State of California

to cause cancer, birth defects and other

reproductive harm.

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BL-275 Loader Backhoe

Revised Apr. 03 iv Service Manual

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