Every 500 Hours Maintenance - Komatsu H70051 Series Operation & Maintenance Manual

MAINTENANCE
• If the brake oil pressure caution lamp lights up when the brake pedal is depressed 5 times or less, the
gas pressure in the accumulator may be low. Ask your Komatsu distributor for inspection.
REMARK
The inspection must be done within 5 minutes after the engine stops. If the engine is kept stopped, the gas
pressure in the accumulator lowers and the inspection cannot be made.

EVERY 500 HOURS MAINTENANCE

Maintenance for every 50, 100 and 250 hours should be performed at the same time.
METHOD FOR CHANGING OIL IN ENGINE OIL PAN, REPLACING ENGINE OIL
FILTER CARTRIDGE
• Immediately after the engine is stopped, its parts and oil are still very hot, and may cause burn in-
jury. Wait for the temperature to go down, and then start the work.
• When removing the oil filler cap, the oil may spout out. Turn it slowly to release the internal pres-
sure, then remove it carefully.
Refill capacity: 23 ℓ
Items to be prepared
• Container to catch drained oil
• Filter wrench
1.
Open the engine side cover (1) on the right side of the ma-
chine.
2.
Open engine oil filler (F).
3.
Place an oil container right under drain plug (P) to catch
the drained oil.
4.
Remove drain plug (P) and drain the oil.
Check the drained oil. If it contains much metallic powder
or foreign material, contact your Komatsu distributor.
5.
Tighten drain plug (P).
k k
WARNING
MAINTENANCE PROCEDURE
4-53