Komatsu PC270LC-8 Hydraulic Excavator Shop Manual CEBM007202

Description

• Model List:
  • PC270LC-8 Hydraulic Excavator

• 1. CEBM007202 PC270LC8 sn A87001 and up
• 1.1. CONTENTS
• 1.2. REVISED PAGES
• 1.3. SAFETY
• 1.4. GENERAL
• 1.5. HOW TO READ THE SHOP MANUAL
• 1.6. HOISTING INSTRUCTIONS
• 1.7. PUSH PULL COUPLER
• 1.8. COATING MATERIALS
• 1.9. EXPLANATION OF MAINTENANCE STANDARD TERMS
• 1.10. STANDARD TIGHTENING TORQUE
• 1.11. ELECTRIC WIRE CODE
• 1.12. CONVERSION TABLES
• 2. GENERAL
• 2.1. SPECIFICATION AND TECHNICAL DATA
• 2.2. TABLE OF FUEL, COOLANT AND LUBRICANTS
• 3. STRUCTURE, FUNCTION ANDMAINTENANCE STANDARD
• 3.1. ENGINE AND COOLING
• 3.2. POWER TRAIN
• 3.3. UNDERCARRIAGE AND FRAME
• 3.4. HYDRAULIC SYSTEM
• 3.5. WORK EQUIPMENT
• 3.6. CAB AND ITS ATTACHMENTS
• 3.7. ELECTRICAL SYSTEM
• 3.8. MONITOR SYSTEM
• 3.9. SENSORS
• 3.10. KOMTRAX TERMINAL SYSTEM
• 4. STANDARD VALUE TABLES
• 4.1. STANDARD SERVICE VALUE TABLE
• 5. TESTING AND ADJUSTING
• 5.1. TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING
• 5.2. ENGINE SPEED
• 5.3. INTAKE AIR PRESSURE (BOOST PRESSURE)
• 5.4. EXHAUST GAS COLOR
• 5.5. VALVE CLEARANCE
• 5.6. COMPRESSION PRESSURE
• 5.7. BLOWBY PRESSURE
• 5.8. ENGINE OIL PRESSURE
• 5.9. HANDLING FUEL SYSTEM PARTS
• 5.10. AIR CONDITIONER COMPRESSOR BELT
• 5.11. FAN BELT
• 5.12. SWING CIRCLE BEARING
• 5.13. TRACK CHAIN TENSION
• 5.14. WORK EQUIPMENT, SWING, AND TRAVEL CIRCUITS OIL PRESSURE
• 5.15. CONTROL CIRCUIT BASIC PRESSURE
• 5.16. OIL PRESSURE IN PUMP PC CONTROL CIRCUIT
• 5.17. OIL PRESSURE IN PUMP LS CONTROL CIRCUIT
• 5.18. SOLENOID VALVE OUTPUT PRESSURE
• 5.19. PPC VALVE OUTPUT PRESSURE
• 5.20. WORK EQUIPMENT AND SWING PPC VALVES
• 5.21. HYDRAULIC DRIFT OF WORK EQUIPMENT
• 5.22. RESIDUAL PRESSURE FROM HYDRAULIC CIRCUIT
• 5.23. OIL LEAKAGE
• 5.24. BLEEDING AIR FROM EACH PART
• 5.25. CAB TIPPING STOPPER
• 5.26. MIRRORS
• 5.27. SPECIAL FUNCTIONS OF MACHINE MONITOR
• 5.28. HANDLING VOLTAGE CIRCUIT OF ENGINE CONTROLLER
• 5.29. PREPARATION WORK FOR ELECTRICAL SYSTEM
• 5.30. PROCEDURE FOR TESTING DIODES
• 5.31. PM CLINIC SERVICE
• 6. TROUBLESHOOTING
• 6.1. GENERAL INFORMATION
• 6.2. FAILURE CODE (DISPLAY OF CODE)
• 6.3. ELECTRICAL SYSTEM (EMODE)
• 6.4. HYDRAULIC AND MECHANICAL SYSTEM (HMODE)
• 7. DISASSEMBLY AND ASSEMBLY
• 7.1. HOW TO READ THIS SECTION
• 7.2. SPECIAL TOOLS LIST
• 7.3. SKETCHES OF SPECIAL TOOLS
• 7.4. CONNECTOR REPAIR PROCEDURES
• 7.5. ENGINE AND COOLING SYSTEM
• 7.6. POWER TRAIN
• 7.7. UNDERCARRIAGE AND FRAME
• 7.8. HYDRAULIC SYSTEM
• 7.9. WORK EQUIPMENT
• 7.10. CAB AND ITS ATTACHMENTS
• 7.11. ELECTRICAL SYSTEM
• 8. AIR CONDITIONER
• 8.1. STRUCTURE AND FUNCTION
• 8.2. TESTING AND ADJUSTING
• 8.3. TROUBLESHOOTING
• 9. DIAGRAMS AND SCHEMATICS
• 9.1. HYDRAULIC SYSTEM
• 9.2. ELECTRICAL SYSTEM