Komatsu PC30MR-5 Operation & Maintenance Manual page 315

MAINTENANCE
8)
Set the lock lever to LOCK position (L).
9)
Stop the engine.
2.
Open the dirt cover (1).
Open the dirt cover (1) fully and it will be secured by the
cover support lever (2).
3.
Loosen the bolt (3) of the hydraulic tank, move the plate
(4) on oil filler port (F), and turn the cap of oil filler port (F)
slowly to remove it.
Release the internal pressure.
4.
Place the oil container under the drain plug (P) at the bot-
tom of the machine to receive the drained oil.
5.
Remove the drain plug (P) to drain the oil by using the
socket wrench handle.
When removing the drain plug (P), be careful not to get oil
on yourself.
6.
Check the O-ring installed to the drain plug (P) for dam-
age.
If the O-ring is damaged, replace it with new O-ring.
7.
After draining the oil, tighten the drain plug (P).
Tightening torque: 68.6±9.81 Nm {7±1 kgm}
8.
Open the floor.
For details, see "METHOD FOR OPENING FLOOR UNIT".
WENAM00150
MAINTENANCE PROCEDURE
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