Komatsu Backhoe Loader WB91R-5 service & repair manual

Description Komatsu Backhoe Loader WB91R-5 service & repair manual

Komatsu Backhoe Loader WB91R-5 pdf workshop service repair manual

Serial numbers:
F00003 and up

Technical documentation, specifications, testing, troubleshooting, maintenance, electrical wiring diagrams, hydraulic schematics, circuits, adjusting, assembly, disassembly, removal, installation instructions and other information

MANUAL CONTENT:
REVISED PAGES
SAFETY
INTRODUCTION
HOW TO READ THE SHOP MANUAL
HOISTING INSTRUCTIONS
STANDARD TIGHTENING TORQUE
COATING MATERIALS
ELECTRIC
WEIGHT TABLE
TABLE OF OIL AND COOLANT QUANTITIES
CONVERSION TABLE

STRUCTURE AND FUNCTION
POWER TRAIN
TRANSMISSION (4WD)
TRANSMISSION (2WD)
FRONT AXLE (4WD)
FRONT AXLE (2WD)
REAR AXLE
HYDRAULIC CIRCUIT
HYDRAULIC PUMP
SHOVEL CONTROL VALVE
BACKHOE CONTROL VALVE
SOLENOID VALVE
BRAKES PUMP
SHOVEL CYLINDERS
BACKHOE CYLINDERS

TESTING AND ADJUSTMENTS
NORMAL OR STANDARD TECHNICAL DATA
SPECIAL TOOLS
VALVE CLEARANCE ADJUSTING
ENGINE SPEED TESTS
BLEEDING AIR FROM CIRCUITS - ELIMINATING RESIDUAL PRESSURE
ADJUSTING ACCELERATOR PEDAL TRAVEL AND ACCELERATOR LEVER
ADJUSTING BRAKE PEDAL SLACK/ALIGNMENT
BRAKING SYSTEM CHECKS
PARKING BRAKE ADJUSTMENT
CHECKING AND SETTING PRESSURE IN THE ATTACHMENTS HYDRAULIC CIRCUIT
CHECKING THE LOAD SENSING SIGNAL (LS VALVE)
CHECKING FOR PROPER FUNCTIONING OF THE COMPENSATED FLOW VALVE
CHECKING FOR PROPER OPERATION OF THE PRIORITY VALVE
TESTING AND SETTING STEERING CONTROL SYSTEM PRESSURE
CHECKING FOR LEAKS IN THE STEERING CYLINDERS
TESTING PRESSURES IN THE POWER TRAIN GROUP
TESTING THE CORRECT FUNCTIONING OF THE POWER TRAINCLUTCHES
ADJUSTING THE RETURN-TO-DIG DEVICE SENSOR (Optional)
ANALYSIS OF CAUSES HYDRAULIC DRIFT
TROUBLESHOOTING

REMOVAL AND INSTALLATION
HOW TO READ THE MANUAL
PRECAUTIONS TO BE TAKEN WHILE WORKING
SPECIAL TOOLS
ENGINE HOOD
FRONT GUARD
RADIATOR GROUP
MUFFLER
AIR FILTER
EXHAUST PIPE
FAN AND HEATING GROUP
BATTERY
FUEL TANK
STEERING WHEEL AND TRANSMISSION-REVERSE, DIRECTION INDICATOR AND HEADLIGHT DIPPER BEAM CONTROL GROUP
WORKING BRAKE PUMP GROUP
STEERING UNIT
CAB
HYDRAULIC OIL TANK
PUMP
TRANSMISSION
TRANSMISSION 2WD
TRANSMISSION 4WD
CONVERTOR
ENGINE
BACKHOE CONTROL VALVE
FRONT AXLE
FRONT AXLE (2WD)
FRONT AXLE (4WD)
REAR AXLE
FRONT EQUIPMENT CONTROL VALVE
SOLENOID VALVE GROUP (Boom safety differential lock)
SHOVEL LIFT CYLINDERS
SHOVEL DUMP CYLINDERS
SHOVEL
FRONT WORKING EQUIPMENT
BACKHOE BOOM CYLINDER
ARM CYLINDER
JIG ARM CYLINDER
OUTRIGGER CYLINDER
BACKHOE SWING CYLINDERS
BACKHOE BUCKET CYLINDER
BACKHOE BOOM SAFETY CYLINDER
CYLINDER
BACKHOE WORKING EQUIPMENT
BACKHOE BUCKET
BACKHOE BOOM CYLINDER
ARM
JIG ARM
2nd ARM
2nd ARM GUIDES
BACKHOE SWING BRACKET
COMPLETE BACKHOE BACKFRAME
BACKFRAME LOCK PISTONS

STANDARD MAINTENANCE
TRANSMISSION 2WD
TRANSMISSION 4WD
FRONT AXLE (2WD)
FRONT AXLE (4WD)
REAR AXLE 2WD - 4WD
SHOVEL CYLINDERS
BACKHOE CYLINDERS
FRONT WORKING EQUIPMENT
SWING BRACKET
BACKHOE WORKING EQUIPMENT

OTHER
ELECTRICAL DIAGRAM (STANDARD VERSION)

Engine 4D104E, S4D104E workshop service manual