Komatsu PC30MR-5 Operation & Maintenance Manual page 294

MAINTENANCE PROCEDURE
1.
Open the dirt cover (1).
Open the dirt cover (1) fully and it will be secured by the
cover support lever (2).
2.
Loosen the cap of oil filler port (F) of the hydraulic tank
slowly to release the internal pressure.
3.
Remove the bolts (3) (M10, 2 pieces), and remove the tri-
angle cover (4).
4.
Loosen the bleeder (5).
When the oil in which air is not mixed oozes out of bleeder
(5), air bleeding is completed.
5.
After bleeding air, tighten the bleeder (5).
6.
Tighten the cap of oil filler port (F) on the hydraulic tank.
7.
Install the triangle cover (4) with bolts (3) (M10, 2 pieces).
8.
Start the engine.
9.
Turn the fuel control dial to Low idle (MIN) position (a).
Run the engine at low idle for approximately 10 minutes.
The air bleeding of pump is completed.
Proceed to the next operation.
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MAINTENANCE