Komatsu PC30MR-5 Operation & Maintenance Manual page 317

MAINTENANCE
21. Operate the work equipment control levers, and extend the
boom cylinder, bucket cylinder, and arm cylinder to their
stroke end.
Set the work equipment in the posture shown in the figure.
22. Set the lock lever securely to LOCK position (L).
23. Stop the engine.
24. Tighten the cap of oil filler port (F) on the hydraulic tank se-
curely.
25. Return the plate (4) on oil filler port (F) of the hydraulic
tank to its original position, and fix it with bolt (3).
26. Close the dirt cover (1).
27. Start the engine.
28. Set the lock lever to FREE position (F).
29. Operate the work equipment control levers, and set the
work equipment to the state shown in the figure.
By doing so, the hydraulic tank is pressurized.
NOTICE
If the hydraulic tank is not pressurized, air is sucked in
the pump and it affects the components badly.
30. Set the lock lever securely to LOCK position (L).
31. Stop the engine.
WENAM00150
MAINTENANCE PROCEDURE
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