Komatsu PC308USLC-3 Hydraulic Excavator Shop Manual SEBD033101

Description

• Model List:
  • PC308USLC-3 Hydraulic Excavator

• 0.1. HOW TO READ THE SHOP MANUAL
• 0.2. HOISTING INSTRUCTIONS
• 0.3. METHOD OF DISASSEMBLING, CONNECTING PUSHPULL TYPE COUPLER
• 0.4. COATING MATERIALS
• 0.5. STANDARD TIGHTENING TORQUE
• 0.6. ELECTRIC WIRE CODE
• 0.7. CONVERSION TABLE
• 0.8. UNITS
• 1. GENERAL
• 1.1. SPECIFICATION DIMENSION DRAWINGS
• 1.2. SPECIFICATIONS
• 1.3. WEIGHT TABLE
• 1.4. FUEL, COOLANT, AND LUBRICANTS
• 2. STRUCTURE, FUNCTION, AND MAINTENANCE STANDARD
• 2.1. ENGINE RELATED PARTS
• 2.2. RADIATOR OIL COOLER AFTERCOOLER
• 2.3. POWER TRAIN
• 2.4. FINAL DRIVE
• 2.5. SWING MACHINERY
• 2.6. SWING CIRCLE
• 2.7. TRACK FRAME RECOIL SPRING
• 2.8. SELF PRESSURE REDUCING VALVE
• 2.9. CLSS
• 2.10. SWING MOTOR
• 2.11. REVERSE PREVENTION VALVE
• 2.12. CENTER SWIVEL JOINT
• 2.13. TRAVEL MOTOR
• 2.14. TRAVEL JUNCTION VALVE
• 2.15. TRAVEL PPC SHUTTLE VALVE
• 2.16. VALVE CONTROL
• 2.17. WORK EQUIPMENT SWING PPC VALVE
• 2.18. TRAVEL PPC VALVE
• 2.19. SERVICE PPC VALVE
• 2.20. SOLENOID VALVE
• 2.21. PPC ACCUMULATOR
• 2.22. RETURN OIL FILTER
• 2.23. BOOM HYDRAULIC DRIFT PREVENTION VALVE
• 2.24. LIFT CHECK VALVE
• 2.25. ATTACHMENT CIRCUIT SELECTOR VALVE
• 2.26. HYDRAULIC CYLINDER
• 2.27. WORK EQUIPMENT
• 2.28. AIR CONDITIONER
• 2.29. ENGINE CONTROL
• 2.30. ELECTRONIC CONTROL SYSTEM
• 2.31. MONITORING SYSTEM
• 2.32. SENSOR
• 3. TESTING AND ADJUSTING
• 3.1. STANDARD VALUE TABLE FOR ENGINE RELATED PARTS
• 3.2. STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS
• 3.3. TESTING AND ADJUSTING
• 3.3.1. TOOLS FOR TESTING, ADJUSTING AND TROUBLESHOOTING
• 3.3.2. INSPECTION AND ADJUSTMENT OF ENGINE RPM
• 3.3.3. MEASUREMENT OF EXHAUST COLOR
• 3.3.4. ADJUSTMENT OF VALVE CLEARANCE
• 3.3.5. MEASUREMENT OF COMPRESSION PRESSURE
• 3.3.6. MEASUREMENT OF BLOWBY PRESSURE
• 3.3.7. INSPECTION AND ADJUSTMENT OF FUEL INJECTION TIMING
• 3.3.8. MEASUREMENT OF ENGINE OIL PRESSURE
• 3.3.9. ADJUSTMENT OF ENGINE SPEED SENSOR
• 3.3.10. INSPECTION AND ADJUSTMENT OF AIR COMPRESSOR BELT TENSION
• 3.3.11. EMERGENT ESCAPE FROM FAILURE IN ENGINE CONTROL SYSTEM
• 3.3.12. GOVERNOR MOTOR LEVER STROKE
• 3.3.13. HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT
• 3.3.14. PC VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE)
• 3.3.15. LS VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE) AND LS DIFFERENTIAL PRESSURE
• 3.3.16. CONTROL CIRCUIT OIL PRESSURE
• 3.3.17. MEASURING SOLENOID VALVE OUTPUT PRESSURE
• 3.3.18. MEASURING PPC VALVE OUTPUT PRESSURE
• 3.3.19. ADJUSTING WORK EQUIPMENT SWING PPC VALVE
• 3.3.20. TESTING TRAVEL DEVIATION
• 3.3.21. TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT
• 3.3.22. MEASURING SWING, TRAVEL MOTOR OIL LEAKAGE
• 3.3.23. RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
• 3.3.24. TESTING CLEARANCE OF SWING CIRCLE BEARING
• 3.3.25. TESTING WEAR OF SPROCKET
• 3.3.26. TESTING AND ADJUSTING TRACK SHOE TENSION
• 3.3.27. BLEEDING AIR
• 3.3.28. INSPECTION PROCEDURES FOR DIODE
• 3.4. TROUBLESHOOTING
• 3.4.1. POINTS TO REMEMBER WHEN TROUBLESHOOTING
• 3.4.2. SEQUENCE OF EVENTS WHEN TROUBLESHOOTING
• 3.4.3. POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE
• 3.4.4. CHECKS BEFORE TROUBLESHOOTING
• 3.4.5. CLASSIFICATION AND STEPS FOR TROUBLESHOOTING
• 3.4.6. CONNECTOR LOCATION CHART AND ELECTRICAL CIRCUIT DIAGRAM BY SYSTEM
• 3.4.7. CONNECTION TABLE FOR CONNECTOR PIN NUMBERS
• 3.4.8. EXPLANATION OF CONTROL MECHANISM FOR ELECTRICAL SYSTEM
• 3.4.9. DISPLAY METHOD AND SPECIAL FUNCTIONS OF MONITOR PANEL
• 3.4.10. METHOD OF USING JUDGEMENT TABLE
• 3.4.11. METHOD OF USING TROUBLESHOOTING CHARTS
• 3.4.12. DETAILS OF TROUBLESHOOTING AND TROUBLESHOOTING PROCEDURE
• 3.4.13. TROUBLESHOOTING OF COMMUNICATIONS ABNORMALITY (N MODE)
• 3.4.14. TROUBLESHOOTING WHEN SERVICE CODE ELECTRICAL SYSTEM AND FAILURE CODE MECHANICAL SYSTEM ARE INDICATED
• 3.4.15. TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)
• 3.4.16. TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE)
• 3.4.17. TROUBLESHOOTING OF ENGINE (S MODE)
• 4. DISASSEMBLY AND ASSEMBLY
• 4.1. METHOD OF USING MANUAL
• 4.2. PRECAUTIONS WHEN CARRYING OUT OPERATION
• 4.3. SPECIAL TOOL LIST
• 4.4. REMOVAL OF ENGINE ASSEMBLY
• 4.5. INSTALLATION OF ENGINE ASSEMBLY
• 4.6. REMOVAL OF ENGINE FRONT SEAL
• 4.7. INSTALLATION OF ENGINE FRONT SEAL
• 4.8. REMOVAL OF ENGINE REAR SEAL
• 4.9. INSTALLATION OF ENGINE REAR SEAL
• 4.10. REMOVAL OF RADIATOR ASSEMBLY
• 4.11. INSTALLATION OF RADIATOR ASSEMBLY
• 4.12. REMOVAL OF HYDRAULIC OIL COOLER ASSEMBLY
• 4.13. INSTALLATION OF HYDRAULIC OIL COOLER ASSEMBLY
• 4.14. REMOVAL OF AFTERCOOLER ASSEMBLY
• 4.15. INSTALLATION OF AFTERCOOLER ASSEMBLY
• 4.16. REMOVAL OF FUEL TANK ASSEMBLY
• 4.17. INSTALLATION OF FUEL TANK ASSEMBLY
• 4.18. REMOVAL OF CENTER SWIVEL JOINT ASSEMBLY
• 4.19. DISASSEMBLY OF CENTER SWIVEL JOINT ASSEMBLY
• 4.20. ASSEMBLY OF CENTER SWIVEL JOINT ASSEMBLY
• 4.21. REMOVAL OF FINAL DRIVE ASSEMBLY
• 4.22. INSTALLATION OF FINAL DRIVE ASSEMBLY
• 4.23. DISASSEMBLY OF FINAL DRIVE ASSEMBLY
• 4.24. ASSEMBLY OF FINAL DRIVE ASSEMBLY
• 4.25. REMOVAL OF REVOLVING FRAME ASSEMBLY
• 4.26. INSTALLATION OF REVOLVING FRAME ASSEMBLY
• 4.27. REMOVAL OF SWING CIRCLE ASSEMBLY
• 4.28. INSTALLATION OF SWING CIRCLE ASSEMBLY
• 4.29. DISASSEMBLY OF RECOIL SPRING ASSEMBLY
• 4.30. ASSEMBLY OF RECOIL SPRING ASSEMBLY
• 4.31. REMOVAL OF SPROCKET
• 4.32. INSTALLATION OF SPROCKET
• 4.33. ASSEMBLY OF IDLER ASSEMBLY
• 4.34. ASSEMBLY OF TRACK ROLLER ASSEMBLY
• 4.35. EXPANSION OF TRACK SHOE ASSEMBLY
• 4.36. INSTALLATION OF TRACK SHOE ASSEMBLY
• 4.37. REMOVAL OF HYDRAULIC PUMP ASSEMBLY
• 4.38. INSTALLATION OF HYDRAULIC PUMP ASSEMBLY
• 4.39. REMOVAL OF OIL SEAL IN HYRAULIC PUMP INPUT SHAFT
• 4.40. INSTALLATION OF OIL SEAL IN HYRAULIC PUMP INPUT SHAFT
• 4.41. REMOVAL OF CONTROL VALVE ASSEMBLY
• 4.42. INSTALLATION OF CONTROL VALVE ASSEMBLY
• 4.43. DISASSEMBLY OF CONTROL VALVE ASSEMBLY
• 4.44. ASSEMBLY OF CONTROL VALVE ASSEMBLY
• 4.45. DISASSEMBLY OF WORK EQUIPMENT PPC VALVE ASSEMBLY
• 4.46. DISASSEMBLY OF TRAVEL PPC VALVE ASSEMBLY
• 4.47. ASSEMBLY OF TRAVEL PPC VALVE ASSEMBLY
• 4.48. REMOVAL OF WORK EQUIPMENT ASSEMBLY
• 4.49. INSTALLATION OF WORK EQUIPMENT ASSEMBLY
• 4.50. DISASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY
• 4.51. ASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY
• 4.52. REMOVAL OF OPERATORS CAB ASSEMBLY
• 4.53. INSTALLATION OF OPERATORS CAB ASSEMBLY
• 4.54. REMOVAL OF FLOOR FRAME ASSEMBLY
• 4.55. INSTALLATION OF FLOOR FRAME ASSEMBLY
• 4.56. REMOVAL OF AIR CONDITIONER COMPRESSOR ASSEMBLY
• 4.57. INSTALLATION OF AIR CONDITIONER COMPRESSOR ASSEMBLY
• 4.58. REMOVAL OF AIR CONDITIONER CONDENSER ASSEMBLY
• 4.59. INSTALLATION OF AIR CONDITIONER CONDENSER ASSEMBLY
• 4.60. REMOVAL OF AIR CONDITIONER UNIT ASSEMBLY
• 4.61. INSTALLATION OF AIR CONDITIONER UNIT ASSEMBLY
• 4.62. REMOVAL, INSTALLATION OF COUNTERWEIGHT ASSEMBLY
• 4.63. REMOVAL OF MONITOR PANEL ASSEMBLY
• 4.64. INSTALLATION OF MONITOR PANEL ASSEMBLY
• 4.65. REMOVAL OF SWING MOTOR AND SWING MACHINERY ASSEMBLY
• 4.66. INSTALLATION OF SWING MOTOR AND SWING MACHINERY ASSEMBLY
• 4.67. DISASSEMBLY OF SWING MOTOR AND SWING MACHINERY ASSEMBLY
• 4.68. ASSEMBLY OF SWING MOTOR AND SWING MACHINERY ASSEMBLY
• 4.69. REMOVAL OF HYDRAULIC TANK ASSEMBLY
• 4.70. INSTALLATION OF HYDRAULIC TANK ASSEMBLY
• 5. OTHERS
• 5.1. HYDRAULIC CIRCUIT DIAGRAM
• 5.2. ELECTRICAL CIRCUIT DIAGRAM (1/4)
• 5.3. ELECTRICAL CIRCUIT DIAGRAM (2/4)
• 5.4. ELECTRICAL CIRCUIT DIAGRAM (3/4)
• 5.5. ELECTRICAL CIRCUIT DIAGRAM (4/4)