MAINTENANCE SCHEDULE
• When using the engine oil for cold district, the maintenance intervals of the engine oil and filter cartridge are
changed to for every 250 hours. For details, see the oil part number and note in “RECOMMENDED FUEL,
COOLANT, AND LUBRICANT (7-5)”.
• Contact your Komatsu distributor for changing the maintenance interval of the machine monitor.
MAINTENANCE SCHEDULE TABLE
INITIAL 10 HOURS MAINTENANCE (ONLY FOR THE FIRST 50 HOURS) .................................................. 4-14
INITIAL 250 HOURS MAINTENANCE (ONLY AFTER THE FIRST 250 HOURS) .......................................... 4-14
WHEN REQUIRED ........................................................................................................................................ 4-14
METHOD FOR CHECKING, CLEANING AND REPLACING AIR CLEANER.......................................... 4-14
METHOD FOR CLEANING INSIDE OF COOLING SYSTEM ................................................................. 4-20
METHOD FOR CHECKING OIL LEVEL IN TRANSMISSION CASE, ADDING OIL ................................ 4-23
METHOD FOR CHECKING OIL LEVEL IN AXLE CASE AND ADDING OIL........................................... 4-25
METHOD FOR CLEANING AXLE BREATHER....................................................................................... 4-26
METHOD FOR CLEANING AIR CONDITIONER CONDENSER............................................................. 4-27
METHOD FOR CLEANING RADIATOR FIN AND COOLER FIN ............................................................ 4-28
METHOD FOR CLEANING FINS BY ROTATING COOLING FAN IN REVERSE.................................... 4-28
METHOD FOR ROTATING FAN IN REVERSE....................................................................................... 4-28
METHOD FOR CLEANING FIN WITH COMPRESSED AIR ................................................................... 4-30
METHOD FOR REPLACING BUCKET TEETH....................................................................................... 4-32
METHOD FOR CHECKING WINDOW WASHER FLUID LEVEL, ADDING FLUID ................................. 4-35
METHOD FOR CHECKING AND MAINTENANCE AIR CONDITIONER................................................. 4-35
METHOD FOR BLEEDING AIR FROM HYDRAULIC CIRCUIT .............................................................. 4-36
METHOD FOR BLEEDING AIR FROM FUEL CIRCUIT ......................................................................... 4-38
METHOD FOR CHECKING FUNCTION OF ECSS ACCUMULATOR..................................................... 4-40
SELECT AND CHECK TIRES................................................................................................................. 4-40
METHOD FOR LUBRICATING AJSS LEVER......................................................................................... 4-42
CHECKS BEFORE STARTING...................................................................................................................... 4-42
EVERY 50 HOURS MAINTENANCE ............................................................................................................. 4-43
METHOD FOR DRAINING WATER AND SEDIMENT FROM FUEL TANK ............................................. 4-43
EVERY 100 HOURS MAINTENANCE ........................................................................................................... 4-43
METHOD FOR LUBRICATING WORK EQUIPMENT ............................................................................. 4-43
METHOD FOR LUBRICATING STEERING CYLINDER.......................................................................... 4-45
METHOD FOR LUBRICATING REAR AXLE PIVOT PIN ........................................................................ 4-46
METHOD FOR CHECKING OIL LEVEL IN HYDRAULIC TANK, ADDING OIL ....................................... 4-47
METHOD FOR CLEANING AIR CONDITIONER FRESH AIR FILTER.................................................... 4-48
EVERY 250 HOURS MAINTENANCE ........................................................................................................... 4-48
METHOD FOR CHECKING BATTERY ELECTROLYTE LEVEL ............................................................. 4-48
METHOD FOR TESTING PARKING BRAKE.......................................................................................... 4-50
METHOD FOR CHECKING LOOSENESS OF WHEEL HUB BOLTS, RETIGHTENING BOLTS ............ 4-50
METHOD FOR CLEANING AIR CONDITIONER RECIRC AIR FILTER.................................................. 4-51
METHOD FOR CHECKING FUNCTION OF BRAKE ACCUMULATOR .................................................. 4-51
EVERY 500 HOURS MAINTENANCE ........................................................................................................... 4-52
METHOD FOR CHANGING OIL IN ENGINE OIL PAN, REPLACING ENGINE OIL FILTER CARTRIDGE .....
............................................................................................................................................................ 4-52
METHOD FOR REPLACING FUEL PREFILTER CARTRIDGE............................................................... 4-54
METHOD FOR REPLACING FUEL MAIN FILTER CARTRIDGE............................................................ 4-56
METHOD FOR REPLACING TRANSMISSION OIL FILTER CARTRIDGE ............................................. 4-57
METHOD FOR CHECKING AND REPLACING ALTERNATOR AND AIR CONDITIONER COMPRESSOR
DRIVE BELT........................................................................................................................................ 4-58
METHOD FOR REPLACING BRAKE OIL FILTER CARTRIDGE ............................................................ 4-61
EVERY 1000 HOURS MAINTENANCE ......................................................................................................... 4-62
METHOD FOR REPLACING FUEL TANK BREATHER ELEMENT......................................................... 4-62
METHOD FOR CHANGING OIL IN TRANSMISSION CASE AND CLEANING TRANSMISSION CASE
STRAINER .......................................................................................................................................... 4-62
METHOD FOR CLEANING TRANSMISSION BREATHER..................................................................... 4-64
MAINTENANCE SCHEDULE MAINTENANCE
4-12
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