Komatsu PC80MR-5E0, Operation & Maintenance Manual

Page: 278 / 412

EVERY 2000 HOURS MAINTENANCE ......................................................................................................... 4-65
METHOD FOR CHANGING OIL IN HYDRAULIC TANK, CLEANING HYDRAULIC TANK STRAINER... 4-65
METHOD FOR CHECKING AND RELEASING NITROGEN GAS CHARGE PRESSURE IN ACCUMULA-
TOR (FOR CONTROL CIRCUIT) ........................................................................................................ 4-69
METHOD FOR CHECKING AND REPLACING FUEL SYSTEM AND COOLING SYSTEM HOSES ...... 4-73
METHOD FOR CHECKING ALTERNATOR AND STARTING MOTOR ................................................... 4-73
EVERY 3000 HOURS MAINTENANCE ......................................................................................................... 4-74
METHOD FOR CHECKING AND CLEANING FUEL INJECTION SYSTEM............................................ 4-74
METHOD FOR CHECKING, CLEANING AND TESTING EGR VALVE ................................................... 4-74
METHOD FOR CHECKING AND TESTING INTAKE/EXHAUST THROTTLE VALVE ............................. 4-74
METHOD FOR CHECKING AND CLEANING INJECTOR ...................................................................... 4-74
METHOD FOR CHECKING ECU AND RELATED SENSORS AND ACTUATORS ................................. 4-74
EVERY 4000 HOURS MAINTENANCE ......................................................................................................... 4-74
REPLACE DEFINED LIFE PARTS.......................................................................................................... 4-74
METHOD FOR REPLACING ACCUMULATOR (FOR CONTROL CIRCUIT) .......................................... 4-75
EVERY 6000 HOURS MAINTENANCE ......................................................................................................... 4-76
METHOD FOR CLEANING KDPF .......................................................................................................... 4-76
MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER
For machine equipped with a hydraulic breaker, the hydraulic oil deteriorates faster than for normal bucket dig-
ging operations, so set the maintenance intervals as follows.
Replace hydraulic filter element
On a new machine, replace the element after the first 100 to
150 hours, then perform further replacement of the element ac-
cording to the table.
Change of oil in hydraulic tank
Change the oil according to the table.
X: Breaker operating ratio ( %)
Y: Replacement interval (H)
(A):Element of hydraulic tank
(B):Hydraulic oil
REMARK
Breaker operating ratio 100 % means that only the breaker is
used.
Breaker operating ratio 0 % means that the breaker is not used.
MAINTENANCE SCHEDULE MAINTENANCE
4-12
WENAM00241