METHOD FOR CHECKING AND RELEASING NITROGEN GAS CHARGE PRESSURE IN ACCUMULA-
TOR (FOR BREAKER)........................................................................................................................ 4-63
METHOD FOR REPLACING HYDRAULIC TANK BREATHER ELEMENT ............................................. 4-63
METHOD FOR REPLACING DEF TANK BREATHER ELEMENT........................................................... 4-64
METHOD FOR CHECKING ALTERNATOR BELT TENSION AND REPLACING ALTERNATOR BELT .. 4-64
EVERY 2000 HOURS MAINTENANCE ......................................................................................................... 4-65
METHOD FOR CHANGING OIL IN FINAL DRIVE CASE ....................................................................... 4-65
METHOD FOR CLEANING HYDRAULIC TANK STRAINER .................................................................. 4-65
METHOD FOR CHECKING AND RELEASING NITROGEN GAS CHARGE PRESSURE IN ACCUMULA-
TOR (FOR CONTROL CIRCUIT) ........................................................................................................ 4-66
METHOD FOR CHECKING ALTERNATOR............................................................................................ 4-70
METHOD FOR CHECKING AND ADJUSTING ENGINE VALVE CLEARANCE...................................... 4-70
METHOD FOR REPLACING KCCV FILTER ELEMENT ......................................................................... 4-70
METHOD FOR REPLACING DEF FILTER.............................................................................................. 4-72
EVERY 4000 HOURS MAINTENANCE ......................................................................................................... 4-75
REPLACE DEFINED LIFE PARTS.......................................................................................................... 4-75
METHOD FOR CHECKING WATER PUMP............................................................................................ 4-75
METHOD FOR CHECKING STARTING MOTOR.................................................................................... 4-75
METHOD FOR REPLACING ACCUMULATOR (FOR CONTROL CIRCUIT) .......................................... 4-76
METHOD FOR CHECKING FOR LOOSENESS OF ENGINE HIGH-PRESSURE PIPING CLAMP, HARD-
ENING OF RUBBER ........................................................................................................................... 4-77
METHOD FOR CHECKING FOR MISSING FUEL SPRAY PREVENTION CAP, HARDENING OF RUBBER.
............................................................................................................................................................ 4-77
EVERY 4500 HOURS MAINTENANCE ......................................................................................................... 4-78
METHOD FOR CLEANING KDPF .......................................................................................................... 4-78
METHOD FOR CLEANING DEF TANK................................................................................................... 4-78
METHOD FOR CLEANING FUEL DOSER ............................................................................................. 4-78
CHECK FOR MISSING FUEL SPRAY PREVENTION CAP ON FUEL DOSER PIPING, HARDENING OF
RUBBER ............................................................................................................................................. 4-78
EVERY 5000 HOURS MAINTENANCE ......................................................................................................... 4-78
METHOD FOR CHANGING OIL IN HYDRAULIC TANK ......................................................................... 4-78
EVERY 8000 HOURS MAINTENANCE ......................................................................................................... 4-80
METHOD FOR REPLACING ENGINE HIGH-PRESSURE PIPING CLAMP ........................................... 4-80
METHOD FOR REPLACING FUEL SPRAY PREVENTION CAP............................................................ 4-80
EVERY 9000 HOURS MAINTENANCE ......................................................................................................... 4-80
METHOD FOR REPLACING DEF HOSE ............................................................................................... 4-80
METHOD FOR REPLACING FUEL SPRAY PREVENTION CAP ON FUEL DOSER PIPING................. 4-80
END OF SERVICE LIFE ......................................................................................................................... 4-80
MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER
On the machine equipped with a hydraulic breaker, the hydraulic oil and grease deteriorate faster than in normal
bucket digging operations, so set the maintenance intervals as follows.
MAINTENANCE MAINTENANCE SCHEDULE TABLE
4-13
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