Komatsu PC400LC-5 Operation & Maintenance Manual page 198

24. SERVICE PROCEDURE
8. After replacing the filter cartridge, add engine oil through oil
filler @ until the oil level is between the H and L marks on
dipstick 0.
For details of the oil to use, see "20. USE OF FUEL, COOLANT
AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE".
9. Run the engine at idling for a short time, then stop the engine,
and check that the oil level is between the H and L marks on the
dipstick. For details, see "24.3 CHECK BEFORE STARTING".
NOTICE
Even if the machine has not been operated for 250 hours, the oil
and filter cartridge must be replaced when the machine has been
operated for 6 months.
In the same way, even if the machine has not been operated for 6
months, the oil and filter cartridge must be replaced when the
machine has been operated for 250 hours.
24.5.4
REPLACE HYDRAULIC FILTER ELEMENT
1. Remove
the cap from oil filler 0, and release the internal
pressure.
2.
Loosen 4 bolts, then remove cover 0.
When doing this, the cover may fly out under the force of spring
0, so hold the cover down when removing the bolts.
Tightening torque: 95.6 5 12.3 Nm
(9.75 2 1.25 kgm, 70.5 r 9.0 Ibft))
3.
4.
5.
After removing spring @ and valve 0, take out element 0.
Clean the removed parts in diesel oil.
Install a new element in the place where old element @ was
installed.
6. Set valve @ and spring @ on top of the element.
7.
Set cover 0 in position, push it down by hand, and install the
cover with the mouning bolts.
A
WARNING
When removing the oil filler cap, turn it slowly to release the
internal pressure before removing it.
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