Komatsu WB156PS-5 Backhoe Loader Shop Manual CEBM002201

Description

• Model List:
  • WB156PS-5 Backhoe Loader

• 1. CONTENTS
• 2. GENERAL
• 2.1. MACHINE SYSTEMS SPECIFICATIONS
• 2.1.1. ENGINE
• 2.1.2. ELECTRICAL SYSTEM
• 2.1.3. SERVICE REFILL CAPACITIES
• 2.2. SPECIFICATION DRAWING
• 2.2.1. SPECIFICATIONS
• 3. STRUCTURE FUNCTION
• 3.1. POWER TRAIN
• 3.2. TRANSMISSION DIAGRAM
• 3.3. TRANSMISSION
• 3.4. FRONT AXLE
• 3.4.1. COMPLETE ASSEMBLY
• 3.5. REAR AXLE
• 3.5.1. COMPLETE ASSEMBLY
• 3.5.2. DIFFERENTIAL
• 3.5.3. FINAL REDUCTION GEARS
• 3.5.4. WHEEL BRAKES
• 3.5.5. DIFFERENTIAL LOCK
• 3.5.6. DELIVERY CONTROL VALVE
• 3.6. MAIN CONTROL VALVE
• 3.6.1. SPOOL CONTROL VALVE
• 3.7. CLSS
• 3.7.1. DESCRIPTION
• 3.7.2. OPERATING PRINCIPLES
• 3.7.3. PPC VALVE (FLOAT RETURN TO DIG)
• 3.8. HYDRAULIC CONTROLS WITHOUT MULTIPURPOSE BUCKET
• 3.9. HYDRAULIC CONTROLS WITH MULTIPURPOSE BUCKET
• 4. LOADER CYLINDERS
• 4.1. BOOM
• 4.1.1. CHARACTERISTICS
• 4.2. BUCKET
• 4.2.1. CHARACTERISTICS
• 4.3. MULTIPURPOSE (MP) BUCKET
• 4.3.1. CHARACTERISTICS
• 5. BACKHOE CYLINDERS
• 5.1. BOOM
• 5.1.1. CHARACTERISTICS
• 5.2.1. CHARACTERISTICS
• 5.3. BUCKET
• 5.3.1. CHARACTERISTICS
• 5.4. TELESCOPIC ARM CYLINDER
• 5.4.1. CHARACTERISTICS
• 5.5. SWING
• 5.5.1. CHARACTERISTICS
• 5.6. OUTRIGGER
• 5.6.1. CHARACTERISTICS
• 6. WORK EQUIPMENT
• 6.1. LOADER
• 6.2. BACKHOE
• 7. AIR CONDITIONING
• 8. STANDARD VALUE TABLE
• 8.1. ENGINE
• 8.2. CHASSIS
• 9. SPECIAL TOOLS
• 10. ENGINE SPEED
• 10.1. ENGINE WITH LOAD
• 10.1.1. MACHINE IN POWER MODE AT MIN
• 10.1.2. WITH CONVERTER STALLED
• 10.1.3. CONVERTER STALLED AND HYDRAULIC PUMP UNDER LOAD
• 10.1.4. ANALYSIS
• 11. VALVE CLEARANCE
• 12. AIR CONDITIONER COMPRESSOR BELT TENSION
• 13. BLEED AIR FROM CIRCUITS
• 13.1. BLEED AIR FROM CYLINDERS
• 13.2. BLEED AIR FROM BRAKING CIRCUIT
• 13.3. RELEASING RESIDUAL PRESSURE
• 14. ACCELERATOR PEDAL AND LEVER
• 14.1. ACCELERATOR PEDAL TRAVEL
• 14.2. ACCELERATOR LEVER TRAVEL
• 14.2.1. INDIVIDUAL PUMP CHECK
• 14.2.2. BRAKE GROUP LEAKAGE
• 15. PARKING BRAKE ADJUSTMENT
• 16. HYDRAULIC CIRCUIT
• 16.1. INTRODUCTION
• 16.1.1. MAIN CONTROL VALVE
• 17. RELIEF VALVES
• 17.1. TESTING
• 17.1.1. UNLOADING VALVE
• 17.1.2. MAIN RELIEF VALVE
• 17.1.3. SECONDARY VALVES
• 18. SETTING RELIEF VALVES
• 18.1. MAIN RELIEF VALVE
• 18.2. CIRCUIT RELIEF VALVES
• 18.2.1. ARM IN, LOADER CURL, BACKHOE BUCKET CURL, BOOM RAISE, AND MP BUCKET
• 18.2.2. SWING, LOADER DUMP, HAMMER, AND BOOM RAISE
• 19. LS DIFFERENTIAL PRESSURE
• 19.1. CONTROL
• 19.2. ADJUSTMENT
• 20. PPC SUPPLY PRESSURE
• 20.1. CHECK
• 20.2. ADJUSTMENT
• 21. PC VALVE
• 21.1. ADJUSTMENT
• 22. STEERING CONTROL SYSTEM
• 22.1. CONTROL
• 22.2. SETTING
• 23. STEERING CYLINDER
• 24. POWER TRAIN GROUP
• 24.1. CONVERTER OIL PRESSURE
• 24.2. CLUTCH ENGAGEMENT PRESSURE
• 24.3. SUPPLY PRESSURE
• 25. TRANSMISSION CLUTCH FUNCTION
• 25.1. MACHINE PREPARATION
• 25.2. CONTROL
• 26. HYDRAULIC DRIFT
• 26.0.1. OUTRIGGERS CIRCUIT WITHOUT LOCK VALVES
• 27. AIR CONDITIONING
• 27.1. WORK TEMPERATURE
• 27.2. UNIT CHECK
• 27.3. EMPTYING THE AIR CONDITIONING UNIT
• 28. TROUBLESHOOTING GUIDE
• 28.1. FRONT AXLE
• 28.2. REAR AXLE
• 28.3. TRANSMISSION
• 29. FUSES AND RELAYS
• 29.1. FUSE AND RELAY PANEL LOCATION
• 29.2. FUSE AND RELAY PANEL LAYOUT
• 29.2.1. FUSES
• 29.2.2. RELAYS
• 29.3. HEATING AND AIR CONDITIONING FUSES AND RELAYS
• 29.3.1. FUSES
• 29.3.2. RELAYS
• 30. HOW TO USE THIS MANUAL
• 30.1. REMOVAL AND INSTALLATION OF COMPONENTS
• 30.1.1. REMOVAL
• 30.1.2. INSTALLATION
• 30.2. OVERHAUL OF COMPONENTS
• 30.2.1. DISASSEMBLY PROCEDURES
• 30.2.2. ASSEMBLY PROCEDURES
• 31. PRECAUTIONS FOR WORK
• 32. SPECIAL TOOL LIST
• 33. CONNECTOR REPAIR PROCEDURES
• 33.1. CONTACT TERMINAL REMOVAL (HD30 TYPE)
• 33.2. CRIMPING CONTACT TERMINAL (HD30 TYPE)
• 33.3. INSERTION OF CONTACT TERMINAL (HD30 TYPE)
• 33.4. CONTACT TERMINAL REMOVAL (DT TYPE)
• 33.5. CRIMPING CONTACT TERMINAL (DT TYPE)
• 33.6. INSERTION OF CONTACT TERMINAL (DT TYPE)
• 33.7. STRIPPING INSULATION
• 34. AIR CONDITIONER CONDENSER
• 35. AIR CONDITIONER COMPRESSOR
• 35.1. REMOVAL
• 35.2. INSTALLATION
• 36. AIR CONDITIONER COMPRESSOR BELT
• 37. OPERATORS SEAT
• 37.1. REMOVAL
• 38. CAB HEATING AND COOLING SYSTEM
• 39. STEERING AND FRONT DASH ASSEMBLY
• 39.1. STEERING WHEEL
• 39.1.1. REMOVAL
• 39.1.2. INSTALLATION
• 39.2. FRONT DASH ASSEMBLY
• 39.3. BLEED AIR FROM BRAKING CIRCUIT
• 40.1. REMOVAL
• 40.2. INSTALLATION
• 41. HYDRAULIC OIL TANK
• 41.1. BLEED AIR FROM CYLINDERS
• 42. TRANSMISSION OVERHAUL PROCEDURES
• 42.1. TORQUE CONVERTER
• 42.1.1. REMOVAL
• 42.1.2. INSTALLATION
• 42.2. PLUGS AND FILTERS
• 42.3. HYDRAULIC SUPPLY LINES
• 42.3.1. DISASSEMBLY
• 42.3.2. ASSEMBLY
• 42.4. TRANSMISSION HOUSING
• 42.4.1. DISASSEMBLY
• 42.4.2. ASSEMBLY
• 42.5. CLUTCH PACK (A) AND GEAR SHAFT (D)
• 42.5.1. DISASSEMBLY
• 42.5.2. CLUTCHES AND DISC INSPECTIONS
• 42.5.3. ASSEMBLY
• 42.5.4. CHECKING CLUTCH FUNCTION
• 42.6. SHAFT (B)
• 42.6.1. DISASSEMBLY
• 42.6.2. CLUTCHES AND DISC INSPECTIONS
• 42.6.3. ASSEMBLY
• 42.7. SHAFT (C)
• 42.7.1. DISASSEMBLY
• 42.7.2. CLUTCHES AND DISC INSPECTIONS
• 42.7.3. t GEAR CLUTCHES
• 42.7.4. d GEAR CLUTCHES
• 42.7.5. h GEAR CLUTCHES
• 42.7.6. ASSEMBLY
• 42.8. SHAFT (E)
• 42.8.1. DISASSEMBLY
• 42.8.2. CLUTCHES AND DISC INSPECTIONS
• 43. STEERING SOLENOID VALVE
• 43.1. REMOVAL
• 43.2. INSTALLATION
• 44. FRONT AXLE ASSEMBLY
• 44.1. REMOVAL
• 44.2. INSTALLATION
• 45. FRONT AXLE OVERHAUL PROCEDURES
• 45.1. STEERING CYLINDER ASSEMBLY
• 45.1.1. DISASSEMBLY
• 45.1.2. ASSEMBLY
• 45.2. FRONT AXLE END PLANETARY ASSEMBLY
• 45.2.1. DISASSEMBLY
• 45.2.2. ASSEMBLY
• 45.3. AXLE END HUB ASSEMBLY
• 46. REAR AXLE ASSEMBLY
• 46.1. REMOVAL
• 46.2. INSTALLATION
• 47. REAR AXLE OVERHAUL PROCEDURES
• 47.1. PARKING BRAKE ASSEMBLY
• 47.1.1. DISASSEMBLY
• 47.1.2. ASSEMBLY
• 47.1.3. MAINTENANCE
• 47.2. SERVICE BRAKE ASSEMBLY
• 47.2.1. DISASSEMBLY
• 47.2.2. ASSEMBLY
• 47.3. REAR AXLE END PLANETARY ASSEMBLY
• 47.4. DIFFERENTIAL LOCK
• 48. FRONT LOADER PPC VALVE
• 48.1. REMOVAL
• 48.2. INSTALLATION
• 49. FRONTEND LOADER ASSEMBLY
• 49.1. LOADER BOOM CYLINDERS
• 49.2. INSTALLATION
• 49.3. BUCKET CYLINDERS
• 49.3.1. REMOVAL
• 49.3.2. INSTALLATION
• 49.4. FRONT LOADER BUCKET
• 49.4.1. REMOVAL
• 49.4.2. INSTALLATION
• 49.5. LOADER BOOM ASSEMBLY
• 49.5.1. REMOVAL
• 49.5.2. INSTALLATION
• 50. BACKHOE PPC VALVE
• 50.1. REMOVAL
• 50.2. INSTALLATION
• 51. PPC VALVE SUPPORT RELEASE CABLES
• 51.1. REMOVAL
• 51.2. INSTALLATION AND ADJUSTING
• 52. PPC VALVE GAS STRUT
• 53. BACKHOE ASSEMBLY
• 53.1. BUCKET CYLINDER
• 53.1.1. REMOVAL
• 53.1.2. INSTALLATION
• 53.2. TELESCOPIC ARM CYLINDER
• 53.3. SWING CYLINDERS
• 53.3.1. REMOVAL
• 53.3.2. INSTALLATION
• 53.4. BOOM LOCK CYLINDER
• 53.5. TELESCOPIC ARM GIBS
• 53.6. BACKHOE SWING FRAME
• 53.6.1. REMOVAL
• 53.6.2. INSTALLATION
• 53.7. OUTRIGGER CYLINDERS
• 54. WORK EQUIPMENT CYLINDER OVERHAUL
• 54.1. LOADER AND BACKHOE CYLINDERS
• 54.1.1. DISASSEMBLY
• 54.1.2. ASSEMBLY
• 54.2. SWING CYLINDERS
• 54.2.1. DISASSEMBLY
• 54.2.2. ASSEMBLY
• 55. Section 90.pdf
• 55.1. DIAGRAMS AND SCHEMATICS
• 55.1.1. HYDRAULIC CIRCUIT
• 55.1.2. ELECTRICAL SCHEMATICS