Komatsu D31EX-21, Operation & Maintenance Manual, Page: 197 / 256

MAINTENANCE
MAINTENANCE SCHEDULE CHART
4-17
MAINTENANCE SCHEDULE CHART 4
MAINTENANCE SCHEDULE CHART 4
WHEN REQUIRED 4
Check, clean and replace air cleaner element .................................................................................................. 4-19 4
Clean inside of cooling system.......................................................................................................................... 4-23 4
Check track tension........................................................................................................................................... 4-25 4
Check and tighten track shoe belt..................................................................................................................... 4-27 4
Check electrical intake air heater ...................................................................................................................... 4-27 4
Reverse and replace end bits and cutting edges .............................................................................................. 4-28 4
Check idler oil level, add oil............................................................................................................................... 4-29 4
Adjust idler clearance........................................................................................................................................ 4-29 4
Adjust play in center ball ................................................................................................................................... 4-30 4
Grease door hinge ............................................................................................................................................ 4-30 4
Check door lock striker...................................................................................................................................... 4-31 4
Check, adjust air conditioner............................................................................................................................. 4-31 4
Check window washer fluid level, add fluid....................................................................................................... 4-33 4
Replace wiper blade.......................................................................................................................................... 4-33 4
Procedure for bleeding air in hydraulic system ................................................................................................. 4-34 4
Procedure for releasing internal pressure of hydraulic system ......................................................................... 4-35 4
CHECK BEFORE STARTING 4
EVERY 50 HOURS SERVICE 4
Drain water, sediment from fuel tank ................................................................................................................ 4-37 4
EVERY 250 HOURS SERVICE 4
Lubricating......................................................................................................................................................... 4-38 4
Check oil level in final drive case, add oil.......................................................................................................... 4-40 4
Check level of battry electrolyte ........................................................................................................................ 4-41 4
Check brake performance................................................................................................................................. 4-43 4
Clean air conditioner aie filter (fresh/recirc filter)............................................................................................... 4-44 4
EVERY 500 HOURS SERVICE 4
Replace fuel filter cartridge ............................................................................................................................... 4-45 4
Change oil in engine oil pan, replace engine oil filter cartridge......................................................................... 4-48 4
Replace corrosion resister cartridge ................................................................................................................. 4-49 4
Clean, check radiator fins and oil cooler fins..................................................................................................... 4-50 4
EVERY 1000 HOURS SERVICE 4
Change oil in final drive case ............................................................................................................................ 4-51 4
Check fan belt tension, adjust ........................................................................................................................... 4-51 4
Check all tightening parts of turbocharger ........................................................................................................ 4-51 4
Check play of turbocharger rotor....................................................................................................................... 4-52 4
Check for loose rops mount bolts...................................................................................................................... 4-52 4