Komatsu WB93S-5E0 Backhoe Loader Shop Manual WEBM008302

Description

• Model List:
  • WB93S-5E0 Backhoe Loader

• 1. CONTENTS
• 2. SAFETY
• 3. FOREWORD
• 4. HOW TO READ THE SHOP MANUAL
• 5. HOISTING INSTRUCTIONS
• 6. STANDARD TIGHTENING TORQUE
• 7. COATING MATERIALS
• 8. ELECTRIC
• 9. WEIGHT TABLE
• 10. TABLE OF OIL AND COOLANT QUANTITIES
• 11. CONVERSION TABLE
• 12. POWER TRAIN
• 13. STRUCTURE AND FUNCTION
• 13.1. TRANSMISSION (4WD)
• 13.2. TRANSMISSION
• 13.3. DRIVE SHAFTS
• 13.4. CONTROL VALVE BLOCK
• 13.5. FRONT AXLE
• 13.6. REAR AXLE
• 13.7. STEERING SYSTEM (4WS)
• 13.8. HYDRAULIC PUMP
• 13.9. SPOOL CONTROL VALVE (WITH MECHANICAL CONTROL)
• 13.10. SPOOL CONTROL VALVE (WITH MECHANICAL CONTROL)
• 13.11. SPOOL CONTROL VALVE (WITH SERVOCONTROL)
• 13.12. SPOOL CONTROL VALVE (WITH SERVOCONTROL)
• 13.13. CLSS
• 13.14. STEERING UNIT
• 13.15. PPC VALVES
• 13.16. PPC VALVE (BACKHOE CONTROLS)
• 13.17. SOLENOID VALVE GROUP (EV1)
• 13.18. SOLENOID VALVE GROUP (EV2)
• 13.19. HAMMER AND JIG ARM SOLENOID VALVE
• 13.20. HAMMER SOLENOID VALVE
• 13.21. JIG ARM SOLENOID VALVE
• 13.22. JIG ARM AND SIDE DIGGING BOOM SOLENOID VALVE
• 13.23. JIG ARM AND 2WAY ATTACHMENT SOLENOID VALVE
• 13.24. SIDE DIGGING BOOM SOLENOID VALVE
• 13.25. WAY ATTACHMENT SOLENOID VALVE
• 13.26. SAFETY VALVES
• 13.27. SHOVEL CYLINDERS
• 13.28. BACKHOE CYLINDERS
• 13.29. AIRCONDITIONING UNIT
• 13.30. OPERATION OF THE AIR CONDITIONING UNIT
• 14. TESTING AND ADJUSTMENTS
• 14.1. NORMAL OR STANDARD TECHNICAL DATA
• 14.2. SPECIAL TOOLS
• 14.3. VALVE CLEARANCE ADJUSTING
• 14.4. ENGINE SPEED TESTS
• 14.5. TENSIONING THE AIRCONDITIONING COMPRESSOR BELT
• 14.6. BLEEDING AIR FROM CIRCUITS ELIMINATING RESIDUAL PRESSURE
• 14.7. ADJUSTING ACCELERATOR PEDAL TRAVEL AND ACCELERATOR LEVER
• 14.8. ADJUSTING BRAKE PEDAL SLACK/ALIGNMENT
• 14.9. BRAKING SYSTEM CHECKS
• 14.10. PARKING BRAKE ADJUSTMENT
• 14.11. CHECKING AND SETTING PRESSURE IN THE ATTACHMENTS HYDRAULIC CIRCUIT
• 14.12. CHECKING THE SETTING OF MAIN RELIEF AND SECONDARY VALVES
• 14.13. SETTING THE MAIN RELIEF VALVES AND THE REDUCING VALVES
• 14.14. CHECKING AND ADJUSTING THE LS DIFFERENTIAL PRESSURE ADJUSTING THE LS VALVE
• 14.15. CHECKING AND ADJUSTING SERVOCONTROLS SUPPLY PRESSURE
• 14.16. ADJUSTING THE PC VALVE
• 14.17. TESTING AND SETTING STEERING CONTROL SYSTEM PRESSURE
• 14.18. CHECKING FOR LEAKS IN THE STEERING CYLINDERS
• 14.19. TESTING PRESSURES IN THE POWER TRAIN GROUP
• 14.20. TESTING THE CORRECT FUNCTIONING OF THE POWER TRAINCLUTCHES
• 14.21. ANALYSIS OF CAUSES HYDRAULIC DRIFT
• 14.22. JIG ARM CLEARANCE ADJUSTMENT
• 14.23. TESTING THE AIRCONDITIONING UNIT
• 14.24. EMPTYING THE AIRCONDITIONING UNIT
• 14.25. TROUBLESHOOTING
• 15. REMOVAL AND INSTALLATION
• 15.1. HOW TO READ THE MANUAL
• 15.2. PRECAUTIONS TO BE TAKEN WHILE WORKING
• 15.3. SPECIAL TOOLS
• 15.4. ENGINE HOOD
• 15.5. FRONT GUARD
• 15.6. RADIATOR GROUP INTERCOOLER
• 15.7. INTERCOOLER
• 15.8. CONDENSER (For machines equipped with an airconditioning unit)
• 15.9. AIRCONDITIONING UNIT COMPRESSOR
• 15.10. AIRCONDITIONING UNIT COMPRESSOR BELT
• 15.11. FAN AND HEATING GROUP
• 15.12. BATTERY
• 15.13. FUEL TANK
• 15.14. STEERING WHEEL AND TRANSMISSIONREVERSE, DIRECTION INDICATOR AND HEADLIGHT DIPPER BEAM CONTROL GROUP
• 15.15. WORKING BRAKE PUMP GROUP
• 15.16. STEERING UNIT
• 15.18. HYDRAULIC OIL TANK
• 15.19. HYDRAULIC PUMP
• 15.20. TRANSMISSION
• 15.21. CONVERTOR
• 15.22. ENGINE
• 15.23. CONTROL VALVE (Standard version)
• 15.24. CONTROL VALVE (version with servocontrol)
• 15.25. STEERING SOLENOID VALVE GROUP
• 15.26. FRONT AXLE
• 15.27. REAR AXLE
• 15.28. SHOVEL PPC VALVE
• 15.29. SHOVEL LIFT CYLINDERS
• 15.30. SHOVEL DUMP CYLINDERS
• 15.31. SHOVEL
• 15.32. FRONT WORKING EQUIPMENT
• 15.33. BACKHOE PPC VALVES (Optional)
• 15.34. PPC VALVE SUPPORT RELEASE CABLES
• 15.35. PPC VALVE SUPPORT RETURN GAS SPRING
• 15.36. SOLENOID VALVE GROUP (servocontrol and optional attachment)
• 15.37. BACKHOE BOOM CYLINDER
• 15.38. ARM CYLINDER
• 15.39. JIG ARM CYLINDER
• 15.40. OUTRIGGER CYLINDER
• 15.41. BACKHOE SWING CYLINDERS
• 15.42. BACKHOE BUCKET CYLINDER
• 15.43. BACKHOE BOOM SAFETY CYLINDER
• 15.44. CYLINDER
• 15.45. BACKHOE WORKING EQUIPMENT
• 15.46. BACKHOE BUCKET
• 15.47. BACKHOE BOOM CYLINDER
• 15.49. JIG ARM
• 15.50. d ARM
• 15.51. d ARM GUIDES
• 15.52. BACKHOE SWING BRACKET
• 15.53. COMPLETE BACKHOE BACKFRAME
• 15.54. BACKFRAME LOCK PISTONS
• 16. STANDARD MAINTENANCE
• 16.1. EXPLANATION OF TERMS FOR MAINTENANCE STANDARD
• 16.2. SHOVEL CYLINDERS
• 16.3. BACKHOE CYLINDERS
• 16.4. FRONT WORKING EQUIPMENT
• 16.5. SWING BRACKET
• 16.6. BACKHOE WORKING EQUIPMENT
• 17. DIAGRAMS AND DRAWINGS
• 17.1. HYDRAULIC CIRCUIT DIAGRAM (MECHANICAL VERSION) UP TO S/N F20723
• 17.2. HYDRAULIC CIRCUIT DIAGRAM (MECHANICAL VERSION) FROM S/N F20724 TO F21521
• 17.3. HYDRAULIC CIRCUIT DIAGRAM (MECHANICAL VERSION) FROM S/N F21522 AND UP
• 17.4. HYDRAULIC CIRCUIT DIAGRAM (MECHANICAL VERSION) OPTIONAL
• 17.5. HYDRAULIC CIRCUIT DIAGRAM (VERSION WITH SERVOCONTROL) UP TO S/N F20723
• 17.6. HYDRAULIC CIRCUIT DIAGRAM (VERSION WITH SERVOCONTROL) FROM S/N F20724 TO F20920
• 17.7. HYDRAULIC CIRCUIT DIAGRAM (VERSION WITH SERVOCONTROL) FROM S/N F20921 TO F21521
• 17.8. HYDRAULIC CIRCUIT DIAGRAM (VERSION WITH SERVOCONTROL) FROM S/N F21522 AND UP
• 17.9. HYDRAULIC CIRCUIT DIAGRAM (VERSION WITH SERVOCONTROL) OPTIONAL
• 17.10. HYDRAULIC CIRCUIT DIAGRAM STEERING
• 17.11. ELECTRICAL CIRCUIT DIAGRAM (1/3)
• 17.12. ELECTRICAL CIRCUIT DIAGRAM (2/3)
• 17.13. ELECTRICAL CIRCUIT DIAGRAM (3/3)