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MAINTENANCE MAINTENANCE SCHEDULE

4-17

MAINTENANCE SCHEDULE 4

If the machine is equipped with a hydraulic breaker, the maintenance schedule for some parts will be different.

For details, see “MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER (4-19)“ to confirm the correct main-

tenance schedule when carrying out maintenance.

MAINTENANCE SCHEDULE CHART 4

INITIAL 1000 HOURS MAINTENANCE (ONLY AFTER THE FIRST 1000 HOURS)

CHECK ENGINE VALVE CLEARANCE, ADJUST ........................................................................................... 4-794

WHEN REQUIRED

CHECK, CLEAN AND REPLACE AIR CREANER ELEMENT.......................................................................... 4-214

CLEAN INSIDE OF COOLING SYSTEM.......................................................................................................... 4-274

CHECK AND TIGHTEN TRACK SHOE BOLTS............................................................................................... 4-304

CHECK AND ADJUST TRACK TENSION........................................................................................................ 4-314

REPLACE BUCKET TEETH (VERTICAL PIN TYPE)....................................................................................... 4-334

REPLACE BUCKET TEETH (HORIZONTAL PIN TYPE)................................................................................. 4-364

REPLACE BUCKED SIDE CUTTER SHROUD................................................................................................ 4-384

ADJUST BUCKET CREARANCE..................................................................................................................... 4-394

CHECK WINDOW WASHER FLUID LEVEL, ADD FLUID ............................................................................... 4-404

CHECK AND MAINTENANCE AIR CONDITIONER......................................................................................... 4-414

WASHING WASHABLE FLOOR....................................................................................................................... 4-424

CHECK GAS SPRING ...................................................................................................................................... 4-454

BLEEDING AIR FROM HYDRAULIC SYSTEM................................................................................................ 4-454

CHECKS BEFORE STARTING

EVERY 50 HOURS MAINTENANCE

LUBRICATING.................................................................................................................................................. 4-484

EVERY 250 HOURS MAINTENANCE

LUBRICATE SWING CIRCLE........................................................................................................................... 4-494

CHECK OIL LEVEL IN SWING MACHINERY CASE, ADD OIL....................................................................... 4-654

CHECK OIL LEVEL IN FINAL DRIVE CASE, ADD OIL....................................................................................4-664

CHECK LEVEL OF BATTERY ELECTROLYTE............................................................................................... 4-504

CHECK FAN BELT, ALTERNATOR BELT TENSION, ADJUST ...................................................................... 4-524

CHECK AIR CONDITIONER COMPRESSOR BELT TENSION, ADJUST ...................................................... 4-534

EVERY 500 HOURS MAINTENANCE

LUBRICATING.................................................................................................................................................. 4-544

REPLACE FUEL PRE-FILTER CARTRIDGE................................................................................................... 4-554

CHECK SWING PINION GREASE LEVEL, ADD GREASE ............................................................................. 4-584

CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE ..................................... 4-594

CLEAN AND INSPECT RADIATOR FINS, OIL COOLER FINS, AFTER COOLER

FIN AND CONDENSER FINS........................................................................................................................... 4-614

CLEAN AIR CONDITIONER FRESH/RECIRC FILTERS ................................................................................. 4-624

REPLACE BREATHER ELEMENT IN HYDRAULIC TANK.............................................................................. 4-644