MAINTENANCE SCHEDULE MAINTENANCE 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 (4-18)“ to confirm the correct maintenance schedule when carrying out maintenance. MAINTENANCE SCHEDULE CHART 4 INITIAL 250 HOURS MAINTENANCE (ONLY AFTER THE FIRST 250 HOURS) REPLACE FUEL FILTER CARTRIDGE............................................................................................................
4-55 4 INITIAL 1000 HOURS MAINTENANCE (ONLY AFTER THE FIRST 1000 HOURS) CHECK ENGINE VALVE CLEARANCE, ADJUST ........................................................................................... 4-19 4 WHEN REQUIRED CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT .......................................................................... 4-20 4 CLEAN INSIDE OF COOLING SYSTEM.......................................................................................................... 4-25 4 CHECK AND TIGHTEN TRACK SHOE BOLTS ...............................................................................................
4-28 4 CHECK AND ADJUST TRACK TENSION........................................................................................................ 4-29 4 CHECK ELECTRICAL INTAKE AIR HEATER.................................................................................................. 4-31 4 REPLACE BUCKET TEETH (VERTICAL PIN TYPE)....................................................................................... 4-32 4 REPLACE BUCKET TEETH (HORIZONTAL PIN TYPE) ................................................................................. 4-35 4 ADJUST BUCKET CLEARANCE......................................................................................................................
4-36 4 CHECK WINDOW WASHER FLUID LEVEL, ADD FLUID ............................................................................... 4-37 4 CHECK AND ADJUST AIR CONDITIONER (ONLY MACHINES EQUIPPED WITH AIRCONDITIONER)...... 4-38 WASHING WASHABLE FLOOR....................................................................................................................... 4-39 4 BLEEDING AIR FROM HYDRAULIC SYSTEM................................................................................................ 4-43 4 METHOD FOR RELEASING INTERNAL PRESSURE IN HYDRAULIC CIRCUIT...........................................
4-46 4 CHECK NITROGEN GAS CHARGE PRESSURE IN ACCUMULATOR (control circuit).................................. 4-46 4 CHECKS BEFORE STARTING EVERY 100 HOURS MAINTENANCE LUBRICATING .................................................................................................................................................. 4-48 4 CHECK SWING MACHINERY CASE OIL, ADD OIL........................................................................................4-50 4 EVERY 250 HOURS MAINTENANCE CHECK OIL LEVEL IN FINAL DRIVE CASE, ADD OIL....................................................................................
4-51 4 CHECK LEVEL OF BATTERY ELECTROLYTE............................................................................................... 4-52 4 4-16