Maintenance Interval For Hydraulic Breaker - Komatsu PW98MR-10 Operation & Maintenance Manual

MAINTENANCE
METHOD FOR DRAINING THE HYDRAULIC OIL TANK ....................................................................... 4-55
METHOD FOR CLEANING THE ELECTRIC COMMUTATOR OF THE ROTATING JOINT .................... 4-57
METHOD FOR CHECKING THE BRAKE ACCUMULATOR PRECHARGE PRESSURE........................ 4-58
EVERY 1000 HOURS MAINTENANCE ......................................................................................................... 4-59
METHOD FOR CHECKING THE BRAKING PRESSURE ....................................................................... 4-59
METHOD FOR REPLACING HYDRAULIC OIL FILTER ELEMENT ........................................................ 4-59
METHOD FOR CHANGE OIL IN SWING MACHINERY CASE ............................................................... 4-61
METHOD FOR CHANGING THE OIL IN THE TRANSMISSION REDUCTION GEAR............................ 4-61
METHOD FOR CHANGING THE FRONT AXLE OIL .............................................................................. 4-62
METHOD FOR CHANGING THE REAR AXLE OIL ................................................................................ 4-63
METHOD FOR ADJUSTING THE PARKING BRAKE ............................................................................. 4-64
METHOD FOR CHECKING OIL LEVEL IN PTO GEAR CASE, ADDING OIL ......................................... 4-64
METHOD FOR REPLACING FUEL MAIN FILTER CARTRIDGE ............................................................ 4-65
METHOD FOR CHECKING ALL TIGHTENING POINTS OF ENGINE INTAKE PIPE CLAMPS.............. 4-67
METHOD FOR CHECKING FAN BELT TENSION AND REPLACING FAN BELT ................................... 4-67
EVERY 2000 HOURS MAINTENANCE ......................................................................................................... 4-67
METHOD FOR CHANGING OIL IN HYDRAULIC TANK, CLEANING HYDRAULIC TANK STRAINER... 4-68
METHOD FOR CHECKING AND RELEASING NITROGEN GAS CHARGE PRESSURE IN ACCUMULA-
TORS (FOR CONTROL CIRCUIT) ...................................................................................................... 4-71
METHOD FOR CHECKING ALTERNATOR AND STARTING MOTOR ................................................... 4-75
METHOD FOR CHECKING AND ADJUSTING ENGINE VALVE CLEARANCE ...................................... 4-75
METHOD FOR REPLACING KCCV FILTER ELEMENT ......................................................................... 4-75
EVERY 4000 HOURS MAINTENANCE ......................................................................................................... 4-78
REPLACE DEFINED LIFE PARTS.......................................................................................................... 4-78
METHOD FOR CHECKING WATER PUMP............................................................................................ 4-79
METHOD FOR REPLACING ACCUMULATORS (FOR CONTROL CIRCUIT) ........................................ 4-79
METHOD FOR CHECKING FOR LOOSENESS OF ENGINE HIGH-PRESSURE PIPING CLAMP, HARD-
ENING OF RUBBER ........................................................................................................................... 4-80
METHOD FOR CHECKING FOR MISSING FUEL SPRAY PREVENTION CAP, HARDENING OF RUBBER.
............................................................................................................................................................ 4-80
EVERY 5000 HOURS MAINTENANCE ......................................................................................................... 4-80
METHOD FOR CHANGING OIL IN HYDRAULIC TANK, CLEANING HYDRAULIC TANK STRAINER... 4-81

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 oil in hydraulic tank
Change the oil according to the table.
Replace additional filter element for breaker (if equip-
ped)
Use a guideline of 250 hours for use of the breaker (operating
ratio of the breaker: 50% or more), and replace the element ac-
cording to the table.
X: Breaker operating ratio (%)
Y: Replacement interval (H)
(A):Element of hydraulic tank
(B):Hydraulic oil
(C):Element of additional filter
WENAM00061
MAINTENANCE SCHEDULE TABLE
4-11