Komatsu WB91R-2, WB93R-2 Avance Backhoe Loader Shop Manual WEBM000404

Description

• Model List:
  • WB91R-2 Avance Backhoe Loader
  • WB93R-2 Avance Backhoe Loader

• 1. COVER
• 1.1. CONTENTS
• 1.2. LIST OF REVISED PAGES
• 1.3. SAFETY
• 1.4. FOREWORD
• 1.5. HOW TO READ THE SHOP MANUAL
• 1.6. HOISTING INSTRUCTIONS
• 1.7. STANDARD TIGHTENING TORQUE
• 1.8. COATI NG MATERI ALS
• 1.9. ELECTRIC
• 1.10. WEIGHT TABLE
• 1.11. TABLE OF OIL AND COOLANT QUANTITIES
• 1.12. CONVERSION TABLE
• 1.13. STRUCTURE AND FUNCTION
• 1.13.1. POWER TRAIN
• 1.13.2. TRANSMISSION (4WD)
• 1.13.3. TRANSMISSION
• 1.13.4. DRIVE SHAFTS
• 1.13.5. CONTROL VALVE BLOCK
• 1.13.6. FRONT AXLE
• 1.13.7. REAR AXLE
• 1.13.8. HYDRAULIC PUMP
• 1.13.9. STEERING UNIT
• 1.13.10. HYDRAULIC CIRCUIT
• 1.13.11. SHOVEL CONTROL VALVE
• 1.13.12. BACKHOE CONTROL VALVE
• 1.13.13. CLSS
• 1.13.14. SOLENOID VALVE
• 1.13.15. SAFETY VALVE
• 1.13.16. BRAKE PUMP
• 1.13.17. SHOVEL CYLINDERS
• 1.13.18. BACKHOE CYLINDERS
• 1.13.19. AIRCONDITIONING UNIT
• 1.13.20. HOW THE AIRCONDITIONING UNIT FUNCTIONS
• 1.13.21. ELECTRICAL DIAGRAM
• 1.13.22. ELECTRICAL DIAGRAM (AIR CONDITIONING)
• 1.14. TESTING AND ADJUSTMENTS
• 1.14.1. NORMAL OR STANDARD TECHNICAL DATA
• 1.14.2. SPECIAL TOOLS
• 1.14.3. MEASURING ENGINE SPEED
• 1.14.4. ADJUSTING VALVE CLEARANCE
• 1.14.5. MEASURING COMPRESSION PRESSURE
• 1.14.6. TESTING AND ADJUSTING FUEL INJECTION TIMING
• 1.14.7. CHECKING AND TIGHTENING THE FAN BELT
• 1.14.8. CHECKING AND TIGHTENING THE COMPRESSOR FAN BELT
• 1.14.9. MEASURING ACCELERATOR PEDAL OPERATING TRAVEL AND ACCELERATOR LEVER
• 1.14.10. ADJUSTING BRAKE PEDAL TRAVEL, BRAKE ALIGNMENT, MICROSWITCHES
• 1.14.11. AIR BLEEDING RELEASING RESIDUAL PRESSURE
• 1.14.12. CHECKING AND SETTING PRESSURE IN THE ATTACHMENTS HYDRAULIC CIRCUIT
• 1.14.13. TESTING AND ADJUSTING OF LOAD SENSING SIGNAL (LS VALVE)
• 1.14.14. TESTING AND ADJUSTING OF UNLOADING VALVE
• 1.14.15. CHECKING UNLOADING VALVE FUNCTIONALITY
• 1.14.16. TESTING PRIORITY VALVE OPERATION
• 1.14.17. TESTING AND SETTING STEERING CONTROL SYSTEM PRESSURE
• 1.14.18. TESTING BRAKE SYSTEM
• 1.14.19. CONTROL OF THE ENGINE SPEED UNDER LOAD
• 1.14.20. TESTING PRESSURES IN THE POWER TRAIN GROUP
• 1.14.21. TESTING THE CORRECT FUNCTIONING OF THE POWER TRAIN CLUTCHES
• 1.14.22. ADJUSTING THE SENSOR FOR RETURN TO DIG DEVICE
• 1.14.23. ANALYSIS OF CAUSES HYDRAULIC DRIFT
• 1.14.24. TESTING THE AIRCONDITIONING UNIT
• 1.14.25. EMPTYING THE AIRCONDITIONING UNIT
• 1.14.26. TROUBLESHOOTING
• 1.14.26.1. FRONT AXLE TROUBLESHOOTING
• 1.14.26.2. REAR AXLE TROUBLESHOOTING
• 1.14.26.3. TRANSMISSION TROUBLESHOOTING
• 1.15. REMOVAL AND INSTALLATION
• 1.15.1. HOW TO READ THE MANUAL
• 1.15.2. PRECAUTIONS TO BE TAKEN WHILE WORKING
• 1.15.3. SPECIAL TOOLS
• 1.15.4. STARTING MOTOR
• 1.15.5. ALTERNATOR
• 1.15.6. AIRCONDITIONING UNIT COMPRESSOR
• 1.15.7. INJECTION PUMP
• 1.15.8. INJECTION NOZZLES
• 1.15.9. THERMOSTAT
• 1.15.10. COOLING LIQUID PUMP
• 1.15.11. TURBOCOMPRESSOR
• 1.15.12. CYLINDER HEAD
• 1.15.13. FRONT COUNTERWEIGHT
• 1.15.14. HEAT AND AIRCONDITIONING GROUP
• 1.15.15. FUEL TANK
• 1.15.16. HYDRAULIC OIL TANK
• 1.15.17. ENGINEGEARBOXPUMP GROUP
• 1.15.18. PISTON PUMP
• 1.15.19. TRANSMISSION
• 1.15.20. OVERHAULING THE TRANSMISSION
• 1.15.21. CONVERTOR
• 1.15.22. TRANSMISSIONREVERSE, DIRECTION INDICATOR AND HEADLIGHT DIPPER BEAM CONTROL GROUP
• 1.15.23. STEERING UNIT
• 1.15.24. WORKING BRAKE PUMP GROUP
• 1.15.25. FRONT WORKING EQUIPMENT CONTROL VALVE
• 1.15.26. FRONT AND BACKHOE CONTROL VALVE
• 1.15.27. FRONT AXLE
• 1.15.28. REAR AXLE
• 1.15.29. FRONT BUCKET BOOMRAISING CYLINDER
• 1.15.30. FRONT BUCKET TILT CYLINDERS
• 1.15.31. FRONT BUCKET
• 1.15.32. FRONT WORKING EQUIPMENT
• 1.15.33. BACKHOE CONTROL VALVE
• 1.15.34. BACKHOE BOOM CYLINDER
• 1.15.35. BACKHOE ARM CYLINDER
• 1.15.36. JIG ARM CYLINDER
• 1.15.37. BACKHOE BUCKET CYLINDER
• 1.15.38. OUTRIGGER CYLINDERS
• 1.15.39. BACKHOE SWING CYLINDERS
• 1.15.40. BACKHOE BACKFRAME LOCK CYLINDER
• 1.15.41. CYLINDERS
• 1.15.42. BOOM SWING CYLINDER
• 1.15.43. BACKHOE BACKFRAME LOCK CYLINDER
• 1.15.44. BOOM SAFETY CYLINDER
• 1.15.45. BACKHOE WORKING EQUIPMENT
• 1.15.46. BACKHOE SWING BRACKET
• 1.15.47. BACKHOE BACKFRAME
• 1.16. STANDARD MAINTENANCE
• 1.16.1. TRANSMISSION
• 1.16.2. FRONT AXLE
• 1.16.3. REAR AXLE
• 1.16.4. HYDRAULIC PUMP
• 1.16.5. SPOOL CONTROL VALVE
• 1.16.6. SPOOL CONTROL VALVE
• 1.16.7. SPOOL CONTROL VALVE (With Returnto Dig)
• 1.16.8. SPOOL CONTROL VALVE
• 1.16.9. SPOOL CONTROL VALVE
• 1.16.10. SPOOL CONTROL VALVE
• 1.16.11. BRAKE PUMP
• 1.16.12. SHOVEL CYLINDERS
• 1.16.13. BACKHOE CYLINDERS
• 1.16.14. FRONT WORKING EQUIPMENT
• 1.16.15. SWING BRACKET
• 1.16.16. BACKHOE WORKING EQUIPMENT