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MAINTENANCE
3. Taking care not to get oil over yourself, remove drain plug (P) slowly, then loosen drain valve (2) and drain the
oil.
Be careful not to loosen the drain valve too much and deform the stopper pin inside the valve.
4. Check the drained oil, and if there are excessive metal particles or foreign material, please contact your
Komatsu distributor.
5. Tighten drain plug (P) and drain valve (2).
Tightening torque for drain plug (P): 68.6 ± 9.81 Nm (7 ± 1
Tightening torque for drain valve (2): 63.7 ± 14.7 Nm (6.5 ± 1.
6. Using the filter wrench, turn full-flow filter cartridge (3) to the left and remove it.
To prevent getting oil on yourself, do not carry out this operation from immediately under the cartridge.
7. Clean the filter holder, fill the new filter cartridge with engine oil, coat the packing surface and thread with engine
oil (or coat it thinly with grease), then install the filter cartridge.
REMARK
Check that there is no old packing stuck to the filter holder. If there is any old packing stuck to the filter, it will cause
leakage of oil.
kgm , 50.6 ± 7.2 lbft)
5 kgm , 47 ± 10.8 lbft)
SERVICE PROCEDURE
4 - 69
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