Komatsu H70051 Series Operation & Maintenance Manual page 376

MAINTENANCE PROCEDURE
3.
Remove the cap of oil filler port (F).
4.
Place a container under the drain plug (3) to catch the
drained oil.
5.
Remove the drain plug (3).
6.
Open the drain valve (4) gradually to drain the oil.
7.
After draining the oil, close the drain valve (4) and tighten
the drain plug (3).
Tightening torque
Drain plug (3): 29.4 ± 4.9 Nm {3.0 ± 0.5 kgm}
Drain valve (4): 63.7 ± 14.7 Nm {6.5 ± 1.5 kgm}
8.
Remove the bolts (5) (2 pieces) and remove the cover (6).
9.
Remove the bolts (7) (4 pieces) and remove the cover (8).
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MAINTENANCE