Komatsu PC210-10 DEMOLITION BASE SPEC., Operation & Maintenance Manual

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MACHINE OPERATIONS AND CONTROLS OPERATION
3–148
CHECK OIL LEVEL IN HYDRAULIC TANK, ADD OIL
CHECK OIL LEVEL IN HYDRAULIC TANK, ADD OIL:PC220-PM30-212K00A
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WARNING
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The parts and oil are at high temperature after the engine is stopped, and may cause serious burns.
Wait for the temperature to go down before starting the work.
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When removing the oil filler cap, turn it slowly to release the internal pressure, then remove it.
1. Set the work equipment in the posture shown in the dia-
gram on the right, then check the oil level and add oil if nec-
essary.
2. If the work equipment is not in the condition shown in the
diagram on the right, start the engine, run the engine at low
speed, retract the arm and bucket cylinder rods fully, then
lower the boom, set the bucket teeth in contact with the
ground, and stop the engine.
3. Within 15 seconds after stopping the engine, move each
control lever (for work equipment and travel) to the full
stroke in all directions to release the internal pressure.
4. Open the door at the right of the machine, then check sight
gauge (G). The oil level should be between the H and L
lines.
NOTICE
Do not add oil above the H line. This will damage the
hydraulic circuit or cause the oil to spurt out. If oil is added
above the H level, stop the engine, wait for the oil tempera-
ture to cool down, discharge excessive oil from drain plug
(P) under the suction tube in a container for waste oil.
5. If the oil level is below the L line, add oil through oil filler (F)
at the top of the hydraulic tank.
REMARK
The oil level will vary depending upon the oil temperature.
Accordingly, use the followings as a guide:
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Before starting operation: Between H and L levels
(Oil temperature: 10 - 30°C)
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Normal operation: Around H Level
(Oil temperature: 50 - 80°C)