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MAINTENANCE
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
The parts and oil are at high temperature immediately 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: 120 liters (31.70 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. Pour in the specified amount of engine oil from oil filler (F).
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 3-75)".
CHECK STARTING MOTOR
The brush may be worn or have no grease on the bearing, so contact your Komatsu distributor for inspection or
repair.
If the engine is started frequently, carry out inspection every 1000 hours.
CHECK WATER PUMP
Check around the water pump for water leakage. If any part is leaking, ask your Komatsu distributor for
inspection/repair.
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 problem is found, please contact your Komatsu distributor.
WARNING
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SERVICE PROCEDURE
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