Komatsu WB146-5 Backhoe Loader Shop Manual CEBM016503

Description

• Model List:
  • WB146-5 Backhoe Loader

• 1. COVER
• 2. FOREWORD
• 2.1. CONTENTS
• 2.1.1. LIST OF REVISED PAGES
• 2.2. SAFETY
• 2.2.1. SAFETY NOTICE
• 2.3. GENERAL
• 2.4. HOW TO READ THE SHOP MANUAL
• 2.4.1. VOLUMES
• 2.4.2. DISTRIBUTION AND UPDATING
• 2.4.3. FILING METHOD
• 2.4.4. REVISED EDITION MARK
• 2.4.5. REVISIONS
• 2.4.6. SYMBOLS
• 2.5. HOISTING INSTRUCTIONS
• 2.5.1. HOISTING
• 2.5.2. WIRE ROPES
• 2.6. PUSH PULL COUPLER
• 2.6.1. TYPE 1
• 2.6.2. TYPE 2
• 2.6.3. TYPE 3
• 2.7. COATING MATERIALS
• 2.8. STANDARD TIGHTENING TORQUE
• 2.8.1. STANDARD TIGHTENING TORQUE OF BOLTS AND NUTS
• 2.8.2. TIGHTENING TORQUE OF HOSE NUTS
• 2.8.3. TIGHTENING TORQUE OF SPLIT FLANGE BOLTS
• 2.8.4. TIGHTENING TORQUE FOR FLARED NUTS
• 2.8.5. TABLE OF TIGHTENING TORQUES FOR ORING BOSS PIPING JOINTS
• 2.8.6. TABLE OF TIGHTENING TORQUES FOR ORING BOSS PLUGS
• 2.8.7. TIGHTENING TORQUE TABLE FOR HOSES (TAPER SEAL TYPE AND FACE SEAL TYPE)
• 2.9. ELECTRIC WIRE CODE
• 2.9.1. CLASSIFICATION BY THICKNESS
• 2.9.2. CLASSIFICATION BY COLOR AND CODE
• 2.10. CONVERSION TABLES
• 2.10.1. METHOD OF USING THE CONVERSION TABLE
• 3. GENERAL
• 3.1. SPECIFICATION DRAWING
• 3.1.1. SPECIFICATIONS
• 3.1.2. BACKHOE ARM
• 3.2. MACHINE SYSTEMS SPECIFICATIONS
• 3.2.1. ENGINE
• 3.2.2. ELECTRICAL SYSTEM
• 3.2.3. SERVICE REFILL CAPACITIES
• 3.3. FUEL, COOLANT, AND LUBRICANTS
• 3.3.1. PROPER SELECTION ACCORDING TO THE AMBIENT TEMPERATURE
• 3.3.2. GREASE
• 3.3.3. FUEL REMARKS
• 3.4. HOMOLOGATED (HEES) SYNTHETIC LUBRICANTS
• 3.5. LUBRICATION DIAGRAMS
• 3.5.1. GENERAL VIEW
• 4. STRUCTURE, FUNCTION AND MAINTENANCE
• 4.1. POWER TRAIN
• 4.1.1. DESCRIPTION
• 4.1.2. POWER FLOW
• 4.2. TRANSMISSION DIAGRAM
• 4.3. TRANSMISSION
• 4.3.1. COMPLETE ASSEMBLY
• 4.3.2. FORWARD REVERSE CLUTCH
• 4.3.3. T THROUGH 4TH SPEED SHAFT
• 4.3.4. D SHAFT
• 4.4. FRONT AXLE
• 4.4.1. COMPLETE ASSEMBLY
• 4.4.2. DIFFERENTIAL
• 4.4.3. PLANETARY
• 4.5. REAR AXLE
• 4.5.1. COMPLETE ASSEMBLY
• 4.5.2. DIFFERENTIAL
• 4.5.3. PLANETARY
• 4.5.4. WORK BRAKES
• 4.5.5. DIFFERENTIAL LOCK
• 4.6. DELIVERY CONTROL VALVE
• 4.6.1. LS VALVE FUNCTION
• 4.6.2. PC VALVE FUNCTION
• 4.6.3. PC VALVE OPERATION
• 4.7. MAIN CONTROL VALVE
• 4.8. CLSS
• 4.8.1. DESCRIPTION
• 4.8.2. OPERATING PRINCIPLES
• 4.9. OUTRIGGER
• 4.9.1. OPERATION
• 4.10. BACKHOE
• 4.10.1. LEFT VALVE
• 4.10.2. RIGHT VALVE
• 4.11. SOLENOID VALVE
• 4.11.1. HYDRAULIC CONTROLS W/O MP BUCKET
• 4.11.2. HYDRAULIC CONTROLS WITH MP BUCKET
• 4.12. LOADER CYLINDERS
• 4.12.1. BOOM
• 4.12.2. BUCKET
• 4.12.3. MP BUCKET
• 4.13. BACKHOE CYLINDERS
• 4.13.1. BOOM
• 4.13.3. BUCKET
• 4.13.4. TELESCOPIC ARM CYLINDER
• 4.13.5. SWING
• 4.13.6. OUTRIGGER
• 4.14. WORK EQUIPMENT
• 4.14.1. LOADER
• 4.14.2. BACKHOE
• 4.15. AIR CONDITIONING
• 5. TESTING, ADJUSTING ANDTROUBLESHOOTING
• 5.1. STANDARD VALUE TABLE
• 5.1.1. ENGINE
• 5.1.2. CHASSIS
• 5.2. SPECIAL TOOLS
• 5.3. ENGINE SPEED
• 5.3.1. ENGINE WITHOUT LOAD
• 5.4. VALVE CLEARANCE
• 5.5. AC COMPRESSOR BELT TENSION
• 5.6. BLEED AIR FROM CIRCUITS
• 5.6.1. BLEED AIR FROM HYDRAULIC CIRCUIT
• 5.6.2. BLEED AIR FROM BRAKING CIRCUIT
• 5.6.3. RELEASING RESIDUAL PRESSURE
• 5.7. ACCELERATOR PEDAL AND LEVER
• 5.7.1. ACCELERATOR PEDAL TRAVEL
• 5.7.2. ACCELERATOR LEVER TRAVEL
• 5.8. PARKING BRAKE ADJUSTMENT
• 5.9. HYDRAULIC CIRCUIT
• 5.9.1. INTRODUCTION
• 5.10. RELIEF VALVES
• 5.10.1. TESTING
• 5.11. SETTING RELIEF VALVES
• 5.11.1. MAIN RELIEF VALVE
• 5.11.2. CIRCUIT RELIEF VALVES
• 5.12. LS DIFFERENTIAL PRESSURE
• 5.12.1. CONTROL
• 5.12.2. ADJUSTMENT
• 5.13. PPC SUPPLY PRESSURE
• 5.13.1. CHECK
• 5.13.2. ADJUSTMENT
• 5.14. PC VALVE
• 5.14.1. ADJUSTMENT
• 5.15. STEERING CONTROL SYSTEM
• 5.15.1. CONTROL
• 5.15.2. SETTING
• 5.16. STEERING CYLINDER
• 5.17. POWER TRAIN GROUP
• 5.17.1. CONVERTER OIL PRESSURE
• 5.17.2. CLUTCH ENGAGEMENT PRESSURE
• 5.17.3. SUPPLY PRESSURE
• 5.18. TRANSMISSION CLUTCH FUNCTION
• 5.18.1. MACHINE PREPARATION
• 5.18.2. CONTROL
• 5.19. HYDRAULIC DRIFT
• 5.20. AIR CONDITIONING
• 5.20.1. WORK TEMPERATURE
• 5.20.2. UNIT CHECK
• 5.20.3. EMPTYING THE AC UNIT
• 5.21. TROUBLESHOOTING GUIDE
• 5.21.1. FRONT AXLE
• 5.21.2. REAR AXLE
• 5.21.3. TRANSMISSION
• 5.22. FUSES AND RELAYS
• 5.22.1. FUSE AND RELAY PANEL LOCATION
• 5.22.2. FUSE AND RELAY PANEL LAYOUT
• 5.22.3. HEATING AND AIR CONDITIONING FUSES AND RELAYS
• 6. DISASSEMBLY AND ASSEMBLY
• 6.1. HOW TO USE THIS MANUAL
• 6.1.1. REMOVAL AND INSTALLATION OF COMPONENTS
• 6.1.2. OVERHAUL OF COMPONENTS
• 6.2. PRECAUTIONS WHEN PERFORMING OPERATIONS
• 6.3. SPECIAL TOOL LIST
• 6.4. CONNECTOR REPAIR PROCEDURES
• 6.4.1. CONTACT TERMINAL REMOVAL (HD30 TYPE)
• 6.4.2. CRIMPING CONTACT TERMINAL (HD30 TYPE)
• 6.4.3. INSERTION OF CONTACT TERMINAL (HD30 TYPE)
• 6.4.4. CONTACT TERMINAL REMOVAL (DT TYPE)
• 6.4.5. CRIMPING CONTACT TERMINAL (DT TYPE)
• 6.4.6. INSERTION OF CONTACT TERMINAL (DT TYPE)
• 6.4.7. STRIPPING INSULATION
• 6.5. BLEED AIR FROM CIRCUITS
• 6.5.1. BLEED AIR FROM HYDRAULIC CIRCUIT
• 6.5.2. BLEED AIR FROM BRAKING CIRCUIT
• 6.5.3. RELEASING RESIDUAL PRESSURE
• 6.6. AIR CONDITIONING CONDENSER
• 6.7. REFRIGERANT COMPRESSOR
• 6.7.1. REMOVAL
• 6.7.2. INSTALLATION
• 6.8. REFRIGERANT COMPRESSOR BELT
• 6.9. OPERATORS SEAT
• 6.9.1. REMOVAL
• 6.9.2. INSTALLATION
• 6.10. CAB HEATING AND COOLING SYSTEM
• 6.11. STEERING AND FRONT DASH ASSEMBLY
• 6.11.1. STEERING WHEEL
• 6.11.2. FRONT DASH ASSEMBLY
• 6.12. HYDRAULIC OIL TANK
• 6.13. TRANSMISSION OVERHAUL PROCEDURES
• 6.13.1. TORQUE CONVERTER
• 6.13.2. PLUGS AND FILTERS
• 6.13.3. WHEEL DRIVE SOLENOID VALVE
• 6.13.4. TRANSMISSION HOUSING
• 6.13.5. CLUTCH PACK (A) AND GEAR SHAFT (D)
• 6.13.6. GEAR SHAFTS (B) AND (C)
• 6.13.7. GEAR SHAFT (E)
• 6.13.8. SHIFTER TOWER AND FORKS
• 6.14. ENGINE
• 6.14.1. REMOVAL
• 6.14.2. INSTALLATION
• 6.15. STEERING SOLENOID VALVE
• 6.15.1. REMOVAL
• 6.15.2. INSTALLATION
• 6.16. FRONT AXLE ASSEMBLY
• 6.16.1. REMOVAL
• 6.16.2. INSTALLATION
• 6.17. FRONT AXLE OVERHAUL PROCEDURES
• 6.17.1. STEERING CYLINDER ASSEMBLY
• 6.17.2. FRONT AXLE END PLANETARY ASSEMBLY
• 6.17.3. AXLE END HUB ASSEMBLY
• 6.18. REAR AXLE ASSEMBLY
• 6.18.1. REMOVAL
• 6.18.2. INSTALLATION
• 6.19. REAR AXLE OVERHAUL PROCEDURES
• 6.19.1. PARKING BRAKE ASSEMBLY
• 6.19.2. SERVICE BRAKE ASSEMBLY
• 6.19.3. REAR AXLE END PLANETARY ASSEMBLY
• 6.19.4. DIFFERENTIAL
• 6.19.5. DIFFERENTIAL LOCK
• 6.20. FRONT LOADER PPC VALVE
• 6.20.1. REMOVAL
• 6.20.2. INSTALLATION
• 6.21. FRONTEND LOADER ASSEMBLY
• 6.21.1. LOADER BOOM CYLINDERS
• 6.21.2. INSTALLATION
• 6.21.3. BUCKET CYLINDERS
• 6.21.4. FRONT LOADER BUCKET
• 6.21.5. LOADER BOOM ASSEMBLY
• 6.22. BACKHOE PPC VALVE
• 6.22.1. REMOVAL
• 6.22.2. INSTALLATION
• 6.23. PPC VALVE SUPPORT RELEASE CABLES
• 6.23.1. REMOVAL
• 6.23.2. INSTALLATION AND ADJUSTING
• 6.24. PPC VALVE GAS STRUT
• 6.25. BACKHOE ASSEMBLY
• 6.25.1. BUCKET CYLINDER
• 6.25.2. EXTENDABLE ARM CYLINDER
• 6.25.3. SWING CYLINDERS
• 6.25.4. BOOM LOCK CYLINDER
• 6.25.5. EXTENDABLE ARM GIBS
• 6.25.6. BACKHOE BOOM
• 6.25.7. BACKHOE SWING FRAME
• 6.25.8. OUTRIGGER CYLINDERS
• 6.25.9. OUTRIGGER ARMS
• 6.26. WORK EQUIPMENT CYLINDER OVERHAUL
• 6.26.1. LOADER AND BACKHOE CYLINDERS
• 6.26.2. SWING CYLINDERS
• 7. OTHERS
• 7.1. HYDRAULIC CIRCUIT
• 7.1.1. OF 4
• 7.1.2. OF 4
• 7.1.3. OF 4
• 7.1.4. OF 4
• 7.2. ELECTRICAL SCHEMATIC
• 7.2.1. WIRING 1 OF 7
• 7.2.2. WIRING 2 OF 7
• 7.2.3. WIRING 3 OF 7
• 7.2.4. WIRING 4 OF 7
• 7.2.5. WIRING 5 OF 7
• 7.2.6. WIRING 6 OF 7
• 7.2.7. WIRING 7 OF 7
• 7.2.8. LEGEND FOR WIRING SCHEMATIC