Komatsu PC30MR-5 Operation & Maintenance Manual page 163

OPERATION
It is appropriate if the oil level is between H and L.
If the oil level is below level L, the hydraulic oil is insuffi-
cient.
If the hydraulic oil is insufficient, add oil according to the
following procedure.
1)
Open the dirt cover (5).
Open the dirt cover (5) fully and it will be secured by
the cover support lever (6).
2)
Loosen the bolt (7) of the hydraulic tank, move the
plate (8) on oil filler port (F), and turn the cap of oil fill-
er port (F) slowly to remove it.
Release the internal pressure.
3)
Add hydraulic oil through oil filler port (F) until the oil level comes between levels H and L of sight
gauge (G).
NOTICE
Do not add oil above H line.
It may damage the oil circuit and cause the oil to
spurt out.
If oil has been added exceeding level H, swing the
upper structure until drain plug (P) under the hy-
draulic tank comes between the right and left
tracks and stop the engine. Wait for the hydraulic
oil to cool down sufficiently, then drain the exces-
sive oil through drain plug (P).
REMARK
The oil level varies with the oil temperature. Use the
following as a guide for check.
Before starting the operation: Around L level
Oil temperature: 10 to 30 °C
In normal operation: Around H Level
Oil temperature: 50 to 80 °C
4)
Start the engine.
MACHINE OPERATIONS AND CONTROLS
WENAM00150
3-97