OTHER TROUBLE......................................................................................................................... 3-263
MAINTENANCE............................................................................................................................................... 4-1
PRECAUTIONS FOR MAINTENANCE..................................................................................................... 4-2
CHECK SERVICE METER READING ............................................................................................... 4-2
KOMATSU GENUINE REPLACEMENT PARTS ................................................................................ 4-2
KOMATSU GENUINE LUBRICANTS................................................................................................. 4-2
ALWAYS USE CLEAN WASHER FLUID............................................................................................ 4-2
FRESH AND CLEAN LUBRICANTS .................................................................................................. 4-2
CHECK DRAINED OIL AND USED FILTER....................................................................................... 4-2
PRECAUTIONS FOR REFILLING OIL OR FUEL .............................................................................. 4-2
PRECAUTIONS FOR ADDING DEF ................................................................................................. 4-2
WELDING INSTRUCTIONS............................................................................................................... 4-2
DO NOT DROP THINGS INSIDE MACHINE ..................................................................................... 4-2
PRECAUTIONS FOR KDPF .............................................................................................................. 4-2
PRECAUTIONS FOR SCR ASSEMBLY ............................................................................................ 4-3
DUSTY JOBSITES............................................................................................................................. 4-3
AVOID MIXING OIL............................................................................................................................ 4-3
LOCK INSPECTION COVERS .......................................................................................................... 4-3
BLEED AIR FROM HYDRAULIC CIRCUIT ........................................................................................ 4-3
PRECAUTIONS WHEN INSTALLING HYDRAULIC HOSES ............................................................. 4-3
CHECKS AFTER INSPECTION AND MAINTENANCE...................................................................... 4-3
FUEL AND LUBRICANTS TO MATCH THE AMBIENT TEMPERATURE........................................... 4-3
CLOSE ENGINE HOOD SECURELY................................................................................................. 4-4
OUTLINE OF MAINTENANCE.................................................................................................................. 4-5
HANDLE OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC .................................................. 4-5
HANDLE ELECTRICAL COMPONENTS ........................................................................................... 4-9
STANDARD TIGHTENING TORQUE FOR BOLTS AND NUTS.............................................................. 4-10
MAINTENANCE SCHEDULE.................................................................................................................. 4-12
MAINTENANCE SCHEDULE TABLE............................................................................................... 4-12
MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER ............................................................. 4-13
MAINTENANCE PROCEDURE .............................................................................................................. 4-15
WHEN REQUIRED .......................................................................................................................... 4-15
CHECK AUTOMATIC GREASE SYSTEM........................................................................................ 4-41
CHECKS BEFORE STARTING........................................................................................................ 4-43
EVERY 50 HOURS MAINTENANCE ............................................................................................... 4-44
EVERY 250 HOURS MAINTENANCE ............................................................................................. 4-45
EVERY 500 HOURS MAINTENANCE ............................................................................................. 4-48
EVERY 1000 HOURS MAINTENANCE ........................................................................................... 4-58
EVERY 2000 HOURS MAINTENANCE ........................................................................................... 4-65
EVERY 4000 HOURS MAINTENANCE ........................................................................................... 4-75
EVERY 4500 HOURS MAINTENANCE ........................................................................................... 4-78
EVERY 5000 HOURS MAINTENANCE ........................................................................................... 4-78
EVERY 8000 HOURS MAINTENANCE ........................................................................................... 4-80
EVERY 9000 HOURS MAINTENANCE ........................................................................................... 4-80
SPECIFICATIONS ........................................................................................................................................... 5-1
SPECIFICATIONS .................................................................................................................................... 5-2
EXPLANATION OF LIFT CAPACITY CHART (6.7M BOOM).............................................................. 5-4
EXPLANATION OF LIFT CAPACITY CHART (7.1M BOOM).............................................................. 5-7
ATTACHMENTS AND OPTIONS ..................................................................................................................... 6-1
PRECAUTIONS FOR USING ATTACHMENT AND OPTIONS.................................................................. 6-2
PRECAUTIONS WHEN SELECTING ................................................................................................ 6-2
READ THE OPERATION AND MAINTENANCE MANUAL THOROUGHLY....................................... 6-2
PRECAUTIONS WHEN REMOVING AND INSTALLING ................................................................... 6-2
PRECAUTIONS WHEN USING ......................................................................................................... 6-2
QUICK COUPLER SYSTEM..................................................................................................................... 6-4
HANDLING QUICK COUPLER .......................................................................................................... 6-4
AUTOMATIC GREASE SYSTEM.............................................................................................................. 6-7
HANDLING AUTOMATIC GREASE SYSTEM.................................................................................... 6-7
FOREWORD TABLE OF CONTENTS
1-17
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