Komatsu PC45MR-30403, Operation And Maintenance Manual

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2) Loosen the bolt (7) of the hydraulic tank, move the
plate (8) on the oil filler port (F), and turn the cap of
the oil filler port (F) slowly to remove it.
Release the internal pressure.
3) Add the 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 the drain plug (P) under the
hydraulic 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 the 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 {50 to 86 °F}
In normal operation: Around H Level
Oil temperature: 50 to 80 °C {122 to 176 °F}
4) Start the engine.
5) Set the lock lever to FREE position (F).
Be sure to operate the lock lever by the operating por-
tion on the top.
6) Operate the work equipment control levers, and ex-
tend the boom cylinder, bucket cylinder, and arm cylin-
der to their stroke end.
Set the work equipment in the posture shown in the
figure.
MACHINE OPERATIONS AND CONTROLS OPERATION
3-140