Komatsu PC400LC-5 Operation & Maintenance Manual page 210

24. SERVICE PROCEDURE
24.8.2 CHANGE OIL IN HYDRAULIC TANK, CLEAN
STRAINER
The oil is at high temperature immediately after the machine
ing the oil. When removing the oil filler cap, turn it slowly to
Prepare the following.
l Container to catch drained oil: min. 255 e capacity
l Refill, capacity: 255 e (67.4 US gal, 56.1 UK gal)
CHANGE OIL IN HYDRAULIC TANK
1
Retract the arm and bucket cylinders to the stroke end, then
lower the boom and put the bucket teeth in contact with the
ground.
Lock the safety lock lever and stop the engine.
Remove the cap of oil filler 0.
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Set the oil container under the drain plug under the machine.
Remove drain plug @ and drain the oil.
Check the O-ring installed to plug 8, and if it is damaged, replace
the O-ring. After draining the oil, tighten drain plug 8.
Tightening torque: 69 2 IO Nm (7 2 1 kgm, 51 + 7 Ibft).
When removing drain plug @_I, be careful not to get oil on yourself.
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