Komatsu WB91R-2, WB93R-2 Backhoe Loader Shop Manual WEBM000400

Description

• Model List:
  • WB91R-2 Backhoe Loader
  • WB93R-2 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. STANDAR TIGHTENING TORQUE
• 1.8. COATING MATERIALS
• 1.9. ELECTRIC WIRE CODE
• 1.10. WEIGHT TABLE
• 1.11. TABLE OF OIL AND COOLANT QUANTITIES
• 1.12. STRUCTURE AND FUNCTION
• 1.12.1. POWER TRAIN
• 1.12.2. TRANSMISSION
• 1.12.3. DRIVE SHAFTS
• 1.12.4. CONTROL VALVE BLOCK
• 1.12.5. FRONT AXLE
• 1.12.6. REAR AXLE
• 1.12.7. HYDRAULIC PUMP
• 1.12.8. HYDRAULIC STEERING SYSTEM
• 1.12.9. HYDRAULIC CIRCUIT
• 1.12.10. SHOVEL CONTROL VALVE
• 1.12.11. BACKHOE CONTROL VALVE
• 1.12.12. CLSS
• 1.12.13. SOLENOID VALVE
• 1.12.14. SAFETY VALVE
• 1.12.15. BRAKE PUMP
• 1.12.16. SHOVEL CYLINDERS
• 1.12.17. BACKHOE CYLINDERS
• 1.13. TESTING AND ADJUSTMENTS
• 1.13.1. NORMAL OR STANDAR TECHNICAL DATA
• 1.13.2. SPECIAL TOOLS
• 1.13.3. MEASURING ENGINE SPEED
• 1.13.4. ADJUSTING VALVE CLEARANCE
• 1.13.5. MEASURING COMPRESSION PRESSURE
• 1.13.6. TESTING AND ADJUSTING FUEL INJECTION TIMING
• 1.13.7. CHECKING AND TIGHTENING THE FAN BELT
• 1.13.8. MEASURING ACCELERATOR PEDAL OPERATING TRAVEL AND ACCELERATOR LEVER
• 1.13.9. ADJUSTING BRAKE PEDAL TRAVEL,BRAKE ALIGNMENT, MICROSWITCHES
• 1.13.10. AIR BLEEDING RELEASING RESIDUAL PRESSURE
• 1.13.11. CHECKING AND SETTING PRESSURE IN THE ATTACHMENTS HYDRAULIC CIRCUIT
• 1.13.12. TESTING AND ADJUSTING OF LOAD SENSING SIGNAL (LS VALVE)
• 1.13.13. CHECKING UNLOADING VALVE FUNCTIONALITY
• 1.13.14. TESTING PUMP DELIVERY
• 1.13.15. TESTING PRIORITY VALVE OPERATION
• 1.13.16. TESTING AND SETTING STEERING CONTROL SYSTEM PRESSURE
• 1.13.17. TESTING BRAKE SYSTEM
• 1.13.18. CONTROL OF THE ENGINE SPEED UNDER LOAD
• 1.13.19. TESTING PRESSURES IN THE POWER TRAIN GROUP
• 1.13.20. TESTING THE CORRECT FUNCTIONING OH THE POWER TRAIN CLUTCHES
• 1.13.21. ADJUSTING THE SENSOR OF RETURN TO DIG DEVICE
• 1.13.22. ANALYSIS OF CAUSES HYDRAULIC DRIFT
• 1.14. REMOVAL AND INSTALLATION
• 1.14.1. HOW TO READ THE MANUAL
• 1.14.2. PRECAUTIONS TO BE TAKEN WHILE WORKING
• 1.14.3. SPECIAL TOOLS
• 1.14.4. STARTING MOTOR
• 1.14.5. ALTERNATOR
• 1.14.6. INJECTION PUMP
• 1.14.7. INJECTION NOZZLES
• 1.14.8. THERMOSTAT
• 1.14.9. COOLING LIQUID PUMP
• 1.14.10. TURBOCOMPRESSOR
• 1.14.11. CYLINDER HEAD
• 1.14.12. FRONT COUNTERWEIGHT
• 1.14.13. RADIATOROIL COOLER UNIT
• 1.14.14. HYDRAULIC OIL COOLER
• 1.14.15. TRANSMISSION OIL COOLER
• 1.14.16. MUFFLER EXHAUST PIPE
• 1.14.17. ENGINE HOOD
• 1.14.19. CAB HEATING GROUP
• 1.14.20. FUEL TANK
• 1.14.21. HYDRAULIC OIL TANK
• 1.14.22. ENGINEGEARBOXPUMP GROUP
• 1.14.23. PISTON PUMP
• 1.14.24. TRANSMISSION
• 1.14.25. CONVERTOR
• 1.14.26. REMOVAL OF THE TRANSMISSIONREVERSE, DIRECTION INDICATOR AND HEADLIGHT DIPPER BEAM CONTROL GROUP
• 1.14.27. STEERING UNIT
• 1.14.28. WORKING BRAKE PUMP GROUP
• 1.14.29. FORNT WORKING EQUIPMENT CONTROL VALVE
• 1.14.30. FRONT AXLE
• 1.14.31. REAR AXLE
• 1.14.32. FRONT BUCKET BOOMRAISING CYLINDER
• 1.14.33. FRONT BUCKET TILT CYLINDERS
• 1.14.34. FRONT BUCKET
• 1.14.35. FRONT WORKING EQUIPMENT
• 1.14.36. BACKHOE CONTROL VALVE
• 1.14.37. BACKHOE BOOM CYLINDER
• 1.14.38. BACKHOE ARM CYLINDER
• 1.14.39. OUTRIGGER CYLINDERS
• 1.14.40. BACKHOE SWING CYLINDERS
• 1.14.41. BACKHOE BACKFRAME LOCK CYLINDER
• 1.14.42. CYLINDERS
• 1.14.43. BOOM SWING CYLINDER
• 1.14.44. BACKHOE BACKFRAME LOCK CYLINDER
• 1.14.45. BOOM SAFETY CYLINDER
• 1.14.46. BACKHOE WORKING CYLINDER
• 1.14.47. BACKHOE BUCKET
• 1.14.49. BACKHOE BOOM
• 1.14.50. BACKHOE SWING BRACKET
• 1.14.51. BACKHOE BACKFRAME
• 1.15. STANDAR MAINTENANCE
• 1.15.1. TRANSMISSION
• 1.15.2. FRONT AXLE
• 1.15.3. REAR AXLE
• 1.15.4. HYDRAULIC PUMP
• 1.15.5. SPOOL CONTROL VALVE
• 1.15.6. SPOOL CONTROL VALVE
• 1.15.7. SPOOL CONTROL VALVEwith return to dig
• 1.15.8. SPOOL CONTROL VALVE
• 1.15.9. SPOOL CONTROL VALVE
• 1.15.10. SPOOL CONTROL VALVE
• 1.15.11. BRAKE PUMP
• 1.15.12. SHOVEL CYLINDER
• 1.15.13. BACKHOE CYLINDER
• 1.15.14. FRONT WORKING EQUIPMENT
• 1.15.15. SWING BRACKET
• 1.15.16. BACKHOE WORKING EQUIPMENT