Komatsu PC78UU-6, PC78US-6 Hydraulic Excavator Shop Manual SEBM025119

Description

• Model List:
  • PC78UU-6 Hydraulic Excavator
  • PC78US-6 Hydraulic Excavator

• 1. COVER
• 2. CONTENTS
• 3. LIST OF REVISED PAGES
• 4. SAFETY
• 4.1. SAFETY NOTICE
• 5. FOREWORD
• 5.1. GENERAL
• 5.2. HOW TO READ THE SHOP MANUAL
• 5.3. HOISTING INSTRUCTIONS
• 5.4. METHOD OF DISASSEMBLING, CONNECTING PUSHPULL TYPE COUPLER
• 5.5. COATING MATERIALS
• 5.6. STANDARD TIGHTENING TORQUE
• 5.7. ELECTRIC WIRE CODE
• 5.8. CONVERSION TABLE
• 5.9. UNITS
• 6. GENERAL
• 6.1. SPECIFICATION DIMENSIONS DRAWING
• 6.2. WORKING RANGE DRAWING
• 6.3. SPECIFICATIONS
• 6.4. WEIGHT TABLE
• 6.5. LIST OF LUBRICANTS AND COOLANT
• 7. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
• 7.2. COOLING SYSTEM
• 7.3. POWER TRAIN SYSTEM
• 7.4. SWING CIRCLE
• 7.5. SWING MACHINERY
• 7.6. TRACK FRAME AND IDLER CUSHION
• 7.7. ARRANGEMENT OF HYDRAULIC COMPONENTS
• 7.8. HYDRAULIC TANK AND OIL FILTER
• 7.9. CENTER SWIVEL JOINT
• 7.10. TRAVEL MOTOR
• 7.11. WORK EQUIPMENT CYLINDER
• 7.12. SOLENOID VALVE
• 7.13. MULTICONTROL VALVE
• 7.14. ACCUMULATOR FOR BRAKER
• 7.15. HYDRAULIC PUMP
• 7.16. CONTROL VALVE
• 7.17. CLSS
• 7.18. SWING MOTOR
• 7.19. WORK EQUIPMENT AND SWING PPC VALVE
• 7.20. TRAVEL PPC VALVE
• 7.21. OFFSET PPC VALVE (PC78UU6)ATTACHMENT PPC VALVE (PC78US6)BLADE PPC VALVE (PC78UU, PC78US6)
• 7.22. WORK EQUIPMENT
• 7.23. DIMENSIONS OF EACH PART OF WORK EQUIPMENT
• 7.24. AIR CONDITIONER PIPING (OPTIONAL)
• 7.25. ELECTRIC CONTROL SYSTEM
• 7.26. SYSTEM COMPONENTS
• 7.27. MONITOR SYSTEM
• 7.28. SENSORS
• 8. TESTING AND ADJUSTING
• 8.1. STANDARD VALUE TABLE
• 8.2. TESTING AND ADJUSTING
• 8.3. TROUBLESHOOTING
• 9. DISASSEMBLY AND ASSEMBLY
• 9.1. METHOD OF USING MANUAL
• 9.2. PRECAUTIONS WHEN CARRYING OUT OPERATION
• 9.3. SPECIAL TOOL LIST
• 9.4. COUNTERWEIGHT ASSEMBRY
• 9.5. INJECTION PUMP ASSEMBLY
• 9.6. CYLINDER HEAD ASSEMBLY
• 9.7. MAIN PUMP ASSEMBLY
• 9.8. CONTROLL PUMP ASSEMBLY
• 9.9. ENGINE AND MAIN PUMP ASSEMBLY
• 9.10. ENGINE HOOD ASSEMBLY
• 9.11. HYDRAULIC OIL COOLERASSEMBLY
• 9.12. RADIATOR ASSEMBLY
• 9.13. SWING MOTOR AND SWING MACHINERY ASSEMBLY
• 9.14. SWING MACHINERY ASSEMBLY
• 9.15. SWING MOTOR ASSEMBLY
• 9.16. CENTER SWIVEL JOINT ASSEMBLY
• 9.17. CONTROL VALVE ASSEMBLY
• 9.18. WORK EQUIPMENT PPC VALVE ASSEMBLY
• 9.19. TRAVEL PPC VALVE ASSEMBLY
• 9.20. HYDRAULIC TANK ASSEMBLY
• 9.21. FUEL TANK ASSEMBLY
• 9.22. CONTROLLER ASSEMBLY
• 9.23. MONITOR PANEL ASSEMBLY
• 9.24. AIR CONDITIONER UNIT ASSEMBLY
• 9.25. OPERATORS CAB ASSEMBLY
• 9.26. FLOOR FRAME ASSEMBLY
• 9.27. OPERATORS CAB GLASS (STUCK GLASS)
• 9.28. FRONT WINDOW ASSEMBLY
• 9.29. REVOLVING FRAME ASSEMBLY
• 9.30. SWING CIRCLE ASSEMBLY
• 9.31. WORK EQUIPMENT ASSEMBLY
• 9.32. FIRST BOOM ASSEMBLY
• 9.33. SECOND BOOM ASSEMBLY
• 9.34. OFFSET BRACKET ASSEMBLY
• 9.35. STEEL SHOE, RUBBER PAD SHOE, ROAD LINER ASSEMBLY
• 9.36. RUBBER SHOE ASSEMBLY
• 9.37. FINAL DRIVE AND TRAVEL MOTOR ASSEMBLY
• 9.38. TRAVEL MOTOR
• 9.39. IDLER ASSEMBLY
• 9.40. RECOIL SPRING ASSEMBLY
• 9.41. TRACK ROLLER ASSEMBLY
• 9.42. HYDRAULIC CYLINDER ASSEMBLY
• 10. OTHER SPECIFICATIONS
• 10.1. PC78US6 (For Norway EU)
• 10.2. CONTENTS
• 10.3. STRUCTURE, FUNCTION, AND MAINTENANCE STANDARD
• 10.4. TROUBLESHOOTING
• 11. OTHERS
• 11.1. HYDRAULIC CIRCUIT DIAGRAM
• 11.2. ELECTRICAL CIRCUIT DIAGRAM