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MAINTENANCE
SERVICE PROCEDURE
EVERY 4000 HOURS SERVICE
Maintenance for every 50, 250, 500, 1000 and 2000 hours service should be carried out at the same time.
CHANGE OIL IN HYDRAULIC TANK
WARNING
The parts and oil are at high temperature after the engine is stopped, and may cause burns. Wait for the temperature to go down
before starting the work.
When removing the oil filler cap, turn it slowly to release the internal pressure, then remove it.
Refill capacity: 180 liters (47.56 US gal)
1.
Lower the dump body and stop the engine.
2.
Turn the cap of oil filler (F) to release the internal pressure
before removing the cap.
3.
Taking care not to get any oil on you, remove drain plug (P),
drain the oil, then tighten the plug again.
4. Add engine oil through oil filler (F) to the specified level.
5.
After adding oil, check that the oil is at the specified level. For
details of the oil to use, see "CHECK OIL LEVEL IN
HYDRAULIC TANK, ADD OIL (PAGE 3-73)".
CHECK WATER PUMP
Check for play in the pulley, leakage of grease or water, or clogging of the drain hole. If any abnormality is found,
contact your Komatsu distributor for disassembly and repair or replacement.
CHECK AIR COMPRESSOR
Ask your Komatsu distributor to carry out this work.
CHECK FAN PULLEY AND TENSION PULLEY
Check for play of the pulley and leakage of grease. If any abnormality is found, please contact your Komatsu
distributor.
CHECK VIBRATION DAMPER
There is the possibility of drop in the level of the damper fluid and runout of the concave surface. So, please contact
your Komatsu distributor to inspect or replace.
CHECK INJECTOR
See Section "B REGULATION AREA (PAGE 4-18)".
REPLACE INJECTOR ASSEMBLY
See Section "A REGULATION AREA (PAGE 4-18)".
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