Komatsu PC120-6 Hydraulic Excavator Index:

• COVER
• 1. FOREWORD
• 2. SAFETY INFORMATION
• 3. INTRODUCTION
• 4. LOCATION OF PLATES,TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR
• 5. CONTENTS
• SAFETY
  • 6. GENERAL PRECAUTIONS
  • 7. PRECAUTIONS DURING OPERATION
    • 7.1 BEFORE STARTING ENGINE
    • 7.2 AFTER STARTING ENGINE
    • 7.3 TRANSPORTATION
    • 7.4 BATTERY
    • 7.5 TOWING
    • 7.6 BUCKET WITH HOOK
  • 8. PRECAUTIONS FOR MAINTENANCE
    • 8.1 BEFORE CARRYING OUT MAINTENANCE
    • 8.2 DURING MAINTENANCE
  • 9. POSITION FOR ATTACHING SAFETY LABELS
• OPERATION
  • 10. GENERAL VIEW
    • 10.1 GENERAL VIEW OF MACHINE
    • 10.2 GENERAL VIEW OF CONTROLS AND GAUGES
  • 11. EXPLANATION OF COMPONENTS
    • 11.1 MACHINE MONITOR
    • 11.2 SWITCHES
    • 11.3 CONTROL LEVERS AND PEDALS
    • 11.4 CEILING WINDOW
    • 11.5 FRONT WINDOW
    • 11.6 DOOR LOCK
    • 11.7 ASHTRAY
    • 11.8 CAP,COVER WITH LOCK
    • 11.9 AIR CONDITIONER (MACHINES EQUIPPED WITH AIR CONDITIONER)
    • 11.10 CAR RADIO
    • 11.11 ELECTRIC POWER SOURCE
    • 11.12 FUSE
    • 11.13 FUSIBLE LINK
    • 11.14 TOOL BOX
    • 11.15 GREASE PUMP HOLDER
    • 11.16 LOCATION OF MANUAL POCKET
  • 12. OPERATION
    • 12.1 CHECK BEFORE STARTING ENGINE
    • 12.2 STARTING ENGINE
    • 12.3 OPERATIONS AND CHECKS AFTER STARTING ENGINE
    • 12.4 MOVING MACHINE OFF
    • 12.5 STEERING MACHINE
    • 12.6 STOPPING MACHINE
    • 12.7 SWINGING
    • 12.8 OPERATION OF WORK EQUIPMENT
    • 12.9 PROHIBITIONS FOR OPERATION
    • 12.10 PRECAUTIONS FOR OPERATION
    • 12.11 PRECAUTIONS WHEN TRAVELING UP OR DOWN HILLS
    • 12.12 HOW TO ESCAPE FROM MUD
    • 12.13 WORK POSSIBLE USING HYDRAULIC EXCAVATOR
    • 12.14 REPLACEMENT AND INVERSION OF BUCKET
    • 12.15 PARKING MACHINE
    • 12.16 CHECK AFTER FINISHING WORK
    • 12.17 STOPPING ENGINE
    • 12.18 CHECK AFTER STOPPING ENGINE
    • 12.19 LOCKING
    • 12.20 HANDLING ROAD LINER (ROAD LINER ONLY)
  • 13. TRANSPORTATION
    • 13.1 LOADING,UNLOADING WORK
    • 13.2 PRECAUTIONS FOR LOADING
    • 13.3 PRECAUTIONS FOR TRANSPORTATION
  • 14. COLD WEATHER OPERATION
    • 14.1 PRECAUTIONS FOR LOW TEMPERATURE
    • 14.2 PRECAUTIONS AFTER COMPLETION OF WORK
    • 14.3 AFTER COLD WEATHER
  • 15. LONG-TERM STORAGE
    • 15.1 BEFORE STORAGE
    • 15.2 DURING STORAGE
    • 15.3 AFTER STORAGE
    • 15.4 STARTING MACHINE AFTER LONG-TERM STORAGE
  • 16. TROUBLESHOOTING
    • 16.1 WHEN MACHINE RUNS OUT OF FUEL
    • 16.2 PHENOMENA THAT ARE NOT FAILURES
    • 16.3 METHOD OF TOWING MACHINE
    • 16.4 USING METHOD FOR LIGHT-WEIGHT TOWING HOOK
    • 16.5 PRECAUTIONS ON PARTICULAR JOBSITES
    • 16.6 IF BATTERY IS DISCHARGED
    • 16.7 OTHER TROUBLE
• MAINTENANCE
  • 17. GUIDES TO MAINTENANCE
  • 18. OUTLINES OF SERVICE
    • 18.1 OUTLINE OF OIL,FUEL,COOLANT
    • 18.2 OUTLINE OF ELECTRIC SYSTEM
    • 18.3 OUTLINE OF HYDRAULIC SYSTEM
  • 19. WEAR PARTS LIST
  • 20. USE OF FUEL,COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE
  • 21. STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS
    • 21.1 INTRODUCTION OF NECESSARY TOOLS
    • 21.2 TORQUE LIST
  • 22. PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS
  • 23. MAINTENANCE SCHEDULE CHART
    • 23.1 MAINTENANCE SCHEDULE CHART
    • 23.2 MAINTENANCE WHEN USING HYDRAULIC BREAKER
  • 24. SERVICE PROCEDURE
    • 24.1 INITIAL 250 HOURS SERVICE
    • 24.2 WHEN REQUIRED
    • 24.3 CHECK BEFORE STARTING
    • 24.4 EVERY 50 HOURS SERVICE
    • 24.5 EVERY 100 HOURS SERVICE
    • 24.6 EVERY 250 HOURS SERVICE
    • 24.7 EVERY 500 HOURS SERVICE
    • 24.8 EVERY 1000 HOURS SERVICE
    • 24.9 EVERY 2000 HOURS SERVICE
    • 24.10 EVERY 4000 HOURS SERVICE
    • 24.11 EVERY 5000 HOURS SERVICE
• SPECIFICATIONS
  • 25. SPECIFICATIONS
• OPTIONS,ATTACHMENTS
  • 26. GENERAL PRECAUTIONS
    • 26.1 PRECAUTIONS RELATED TO SAFETY
    • 26.2 PRECAUTIONS WHEN INSTALLING ATTACHMENTS
  • 27. HANDLING BUCKET WITH HOOK
    • 27.1 CHECKING FOR DAMAGE TO BUCKET WITH HOOK
    • 27.2 PROHIBITED OPERATIONS
    • 27.3 PRECAUTIONS DURING OPERATIONS
  • 28. USING SEAT BELT
    • 28.1 SEAT BELT
  • 29. HANDLING CAR HEATER
    • 29.1 EXPLANATION OF COMPONENTS
    • 29.2 PREPARING CAR HEATER
  • 30. MACHINES READY FOR ATTACHMENTS
    • 30.1 GENERAL LOCATIONS
    • 30.2 HYDRAULIC CIRCUIT
    • 30.3 OPERATION
    • 30.4 HANDLING ACCUMULATOR
    • 30.5 LONG-TERM STORAGE
    • 30.6 SPECIFICATIONS
  • 31. INTRODUCTION OF OPTIONAL PARTS AND ATTACHMENTS
    • 31.1 INTRODUCTION OF OPTIONAL PARTS AND ATTACHMENTS
    • 31.2 ATTACHMENT INSTALLATION COMBINATION TABLE
    • 31.3 SELECTION OF TRACK SHOES
    • 31.4 HANDLING ROAD LINER
  • 32. EXTENDING MACHINE SERVICE LIFE
    • 32.1 HYDRAULIC BREAKER
    • 32.2 POWER RIPPER
    • 32.3 FORK GRAB
    • 32.4 GRAPPLE BUCKET
    • 32.5 SCRAP GRAPPLE
    • 32.6 CRUSHER & SMASHER
    • 32.7 HYDRAULIC PILE DRIVER
    • 32.8 HYDRAULIC EXCAVATOR WITH MULTI-PURPOSE CRANE