Komatsu WB93S-5E0 Backhoe Loader Shop Manual (WEBM008301) (F20003 and UP)

Format: PDF (Printable Document)

File Language: English

File Pages: 666

File Size: 60.83 MB (Speed Download Link)

Brand: Komatsu

Model: WB93S-5E0 Backhoe Loader

Book No: WEBM008301

Serial No: F20003 and UP

Type of Document: Shop Manual

Categories: Komatsu PDF, PDF

$ 45

Komatsu WB93S-5E0 Backhoe Loader Shop Manual (WEBM008301)

Komatsu WB93S-5E0 Backhoe Loader Shop Manual (WEBM008301) (F20003 and UP)

Komatsu WB93S-5E0 Backhoe Loader Shop Manual (WEBM008301) (F20003 and UP) Index:

CONTENTS
REVISED PAGES
k SAFETY
FOREWORD
HOW TO READ THE SHOP MANUAL
HOISTING INSTRUCTIONS
STANDARD TIGHTENING TORQUE
COATING MATERIALS
ELECTRIC
WEIGHT TABLE
TABLE OF OIL AND COOLANT QUANTITIES
CONVERSION TABLE
10 STRUCTURE AND FUNCTION
- POWER TRAIN
- TRANSMISSION (4WD)
- TRANSMISSION
- DRIVE SHAFTS
- CONTROL VALVE BLOCK
- FRONT AXLE
- REAR AXLE
- STEERING SYSTEM (4WS)
- HYDRAULIC CIRCUIT (WITH MECHANICAL CONTROL)
- HYDRAULIC CIRCUIT (WITH SERVOCONTROL)
- HYDRAULIC PUMP
  - 1. MAIN PUMP
  - 2. DELIVERY CONTROL VALVE
- 8-SPOOL CONTROL VALVE (WITH MECHANICAL CONTROL)
- 10-SPOOL CONTROL VALVE (WITH MECHANICAL CONTROL)
- 8-SPOOL CONTROL VALVE (WITH SERVOCONTROL)
- 10-SPOOL CONTROL VALVE (WITH SERVOCONTROL)
- CLSS
  - 1. DESCRIPTION
  - 2. OPERATING PRINCIPLES
  - 3. OPERATION FOR EACH CIRCUIT AND VALVE
- STEERING UNIT
- PPC VALVES
  - SHOVEL PPC VALVE (STANDARD)
  - SHOVEL PPC VALVE (FLOAT + RETURN TO DIG)
  - OUTRIGGERS PPC VALVE
- PPC VALVE (BACKHOE CONTROL)
  - L.H. PPC VALVE
  - R.H. PPC VALVE
- SOLENOID VALVE GROUP (EV1)
  - VERSION WITH MECHANICAL CONTROLS WITHOUT 4 IN 1 BUCKET
  - VERSION SERVOCONTROL WITHOUT 4 IN 1 BUCKET
  - VERSION WITH MECHANICAL CONTROLS WITH 4 IN 1 BUCKET
  - VERSION SERVOCONTROL WITH 4 IN 1 BUCKET
- SOLENOID VALVE GROUP (EV2)
  - STEERING
- SAFETY VALVES
  - SHOVEL RAISE
  - SHOVEL DUMP
  - BOOM
  - ARM
- SHOVEL CYLINDERS
  - RAISING CYLINDER
  - DUMPING CYLINDER
  - 4 IN 1 BUCKET
- BACKHOE CYLINDERS
  - BOOM CYLINDER
  - ARM
  - BUCKET CYLINDER
  - OUTRIGGER CYLINDER
  - BOOM SWING CYLINDER
  - JIG ARM CYLINDER
- AIR-CONDITIONING UNIT
- OPERATION OF THE AIR CONDITIONING UNIT
- FUSE AND RELAY CENTRE
- DRIVER SEAT WIRING
- SWITCH PANEL WIRING
- FRONT DASH WIRING
- ROOF WIRING
- ENGINE WIRING
- SPEED SELECTOR WIRING
- BACKHOE WIRING
- 4WS PUSH-BUTTONS PANEL WIRING
- 4WD SOLENOID VALVES WIRING
- WIRING DIAGRAM (STANDARD VERSION) (see also Group 90)
20 TESTING AND ADJUSTMENTS
- NORMAL OR STANDARD TECHNICAL DATA
- SPECIAL TOOLS
- VALVE CLEARANCE ADJUSTING
- ENGINE SPEED TESTS
- TENSIONING THE AIR-CONDITIONING COMPRESSOR BELT
- 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 SETTING OF MAIN RELIEF AND SECONDARY VALVES
- SETTING THE MAIN RELIEF VALVES AND THE REDUCING VALVES
- CHECKING AND ADJUSTING THE LS DIFFERENTIAL PRESSURE. ADJUSTING THE LS VALVE
- CHECKING AND ADJUSTING SERVOCONTROLS SUPPLY PRESSURE
- ADJUSTING THE PC 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
- ANALYSIS OF CAUSES HYDRAULIC DRIFT
  - FRONT EQUIPMENT
  - BACKHOE
- JIG ARM CLEARANCE ADJUSTMENT
- TESTING THE AIR-CONDITIONING UNIT
- EMPTYING THE AIR-CONDITIONING UNIT
- TROUBLESHOOTING
  - FRONT AXLE TROUBLESHOOTING
  - FRONT AXLE CHECKING AND TROUBLESHOOTING
  - REAR AXLE TROUBLESHOOTING
  - REAR AXLE CHECKING AND TROUBLESHOOTING
  - TRANSMISSION TROUBLESHOOTING
30 REMOVAL AND INSTALLATION
- HOW TO READ THE MANUAL
- PRECAUTIONS TO BE TAKEN WHILE WORKING
- SPECIAL TOOLS
- ENGINE HOOD
  - Removal
  - Installation
- FRONT GUARD
  - Removal
  - Installation
- RADIATOR GROUP – INTERCOOLER
  - Removal
  - Installation
- INTERCOOLER
  - Removal
  - Installation
- CONDENSER (For machines equipped with an air-conditioning unit)
  - Removal
  - Installation
- EXHAUST PIPE
  - Removal
  - Installation
- MUFFLER
  - Removal
  - Installation
- AIR FILTER
  - Removal
  - Installation
- ENGINE BELT
  - Replacement
- TURBOCHARGER
  - Removal
  - Installation
- AIR-CONDITIONING UNIT COMPRESSOR
  - Removal
  - Installation
- AIR-CONDITIONING UNIT COMPRESSOR BELT
  - Removal
  - Installation
- FAN AND HEATING GROUP
  - Removal
  - Installation
- BATTERY
  - Removal
  - Installation
- FUEL TANK
  - Removal
  - Installation
- STEERING WHEEL AND TRANSMISSION-REVERSE, DIRECTION INDICATOR AND HEADLIGHT DIPPER BEAM CONTROL GROUP
  - Removal
  - Installation
- WORKING BRAKE PUMP GROUP
  - Removal
  - Installation
- STEERING UNIT
  - Removal
  - Installation
- CAB
  - Removal
  - Installation
- HYDRAULIC OIL TANK
  - Removal
  - Installation
- HYDRAULIC PUMP
  - Removal
  - Installation
- TRANSMISSION
  - Removal
  - Installation
- TRANSMISSION
  - Disassembly and assembly
- CONVERTOR
  - Removal
  - Installation
- ENGINE
  - Removal
  - Installation
- CONTROL VALVE (Standard version)
  - Removal
  - Installation
- CONTROL VALVE (version with servocontrol)
  - Removal
  - Installation
- STEERING SOLENOID VALVE GROUP
  - Removal
  - Installation
- FRONT AXLE
  - Removal
  - Installation
- FRONT AXLE
  - Disassembly and assembly
- REAR AXLE
  - Removal
  - Installation
  - Disassembly and assembly
- SHOVEL PPC VALVE
  - Removal
  - Installation
- SHOVEL LIFT CYLINDERS
  - Removal
  - Installation
- SHOVEL DUMP CYLINDERS
  - Removal
  - Installation
- SHOVEL
  - Removal
  - Installation
- FRONT WORKING EQUIPMENT
  - Removal
  - Installation
- BACKHOE PPC VALVES (Optional)
  - Removal
  - Installation
- PPC VALVE SUPPORT RELEASE CABLES
  - Removal
  - Installation
- PPC VALVE SUPPORT RETURN GAS SPRING
  - Removal
  - Installation
- SOLENOID VALVE GROUP (servocontrol and optional attachment)
  - Removal
  - Installation
- BACKHOE BOOM CYLINDER
  - Removal
  - Installation
- ARM CYLINDER
  - Removal
  - Installation
- JIG ARM CYLINDER
  - Removal
  - Installation
- OUTRIGGER CYLINDER
  - Removal
  - Installation
- BACKHOE SWING CYLINDERS
  - Removal
  - Installation
- BACKHOE BUCKET CYLINDER
  - Removal
  - Installation
- BACKHOE BOOM SAFETY CYLINDER
  - Removal
  - Installation
- CYLINDER
  - SHOVEL ARM, SHOVEL, BOOM, ARM, BUCKET, OUTRIGGERS
    - Disassembly
    - Assembly
  - BACKHOE SWING CYLINDERS
    - Disassembly
    - Assembly
- BACKHOE WORKING EQUIPMENT
  - Removal
  - Installation
- BACKHOE BUCKET
  - Removal
  - Installation
- BACKHOE BOOM CYLINDER
  - Removal
  - Installation
- ARM
  - Removal
  - Installation
- JIG ARM
  - Removal
  - Installation
- 2nd ARM
  - Removal
  - Installation
- 2nd ARM GUIDES
  - Removal
  - Installation
- BACKHOE SWING BRACKET
  - Removal
  - Installation
- COMPLETE BACKHOE BACKFRAME
  - Removal
  - Installation
- BACKFRAME LOCK PISTONS
  - Removal
  - Installation
40 STANDARD MAINTENANCE
- TRANSMISSION
- FRONT AXLE
- REAR AXLE
- HYDRAULIC PUMP
- CONTROL VALVE
  - 8-SPOOL VERSION (WITH MECHANICAL CONTROL)
  - 10-SPOOL VERSION (WITH MECHANICAL CONTROL)
  - 8-SPOOL VERSION (WITH SERVOCONTROL)
  - 10-SPOOL VERSION (WITH SERVOCONTROL)
- PPC VALVES
  - SHOVEL CONTROL
- SHOVEL CYLINDERS
  - DUMP CYLINDER
  - RAISE CYLINDER
  - 4 IN 1 BUCKET
- BACKHOE CYLINDERS
  - BOOM
  - ARM
  - BUCKET
  - BOOM SWING
  - OUTRIGGERS
  - JIG ARM
- FRONT WORKING EQUIPMENT
- SWING BRACKET
- BACKHOE WORKING EQUIPMENT
90 OTHER
- ELECTRICAL DIAGRAM (STANDARD VERSION)