.
Maintenance for every 250 hours service should be carried out at
the same time.
CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE AND BYPASS FILTER CARTRIDGE
(including engine by-pass filter cartridge)
Refill capacity: 121 liters (31.97 US gal)
Socket wrench, filter wrench.
1. Remove the covers at the bottom left at the front of the
machine and on the side face, and put a container directly
underneath to catch the drained oil.
2. Remove drain plug (1) and loosen drain valve (2) slowly to
avoid getting oil on yourself, and drain the oil.
Take care not to loosen drain valve (2) so much that the
stopper pin in the valve is distorted.
Tightening torque for drain plug (1): 68.6 ± 9.81 N·m
(7 ± 1 kgf·m, 50.6 ± 7.2
lbft)
Tightening torque for drain valve (2): 63.7 ± 14.7 N·m (6.5 ±
1.5 kgf·m, 47.0 ± 10.8
lbft)
3.
Check the drained oil, and if there are excessive metal particles of foreign material, please contact your Komatsu
distributor.
4. Tighten drain valve (2), then tighten plug (1).