Komatsu Galeo PC800LC-8, Руководство по эксплуатации и техническому обслуживанию

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MAINTENANCE
MAINTENANCE PROCEDURE
4-37
In the following cases, please ask your Komatsu distributor to
carry out inspection, repair, and replacement.
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When the sun roof is heavy to open.
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When the sun roof is not held open.
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When oil or gas is found to be leaking from the gas spring.
BLEEDING AIR FROM HYDRAULIC SYSTEM 4
For details of the procedure when starting the engine, see “STARTING ENGINE (3-92)“. If necessary, refer to the
OPERATION volume for the sections for starting the engine, moving the machine off, steering, and stopping.
CAUTION
When starting the engine to bleed the air, cancel the automatic warming-up operation before starting.
NOTICE
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Bleed the air as follows.
1. Pump (work equipment, swing)
2. Work equipment circuit
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Run the engine at less than 1000 rpm, and operate the cylinders slowly.
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Do not suddenly stop and cause the cylinder pressure to rise or operate to the end of the stroke.
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When operating the cylinder for the first stroke (extending and retracting), operate particularly slowly.
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When operating the cylinder for the first stroke, there is a large amount of air inside the circuit, so the
work equipment will not move for at least 10 seconds. Be careful not to operate the lever to the end of
the stroke.
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Use clean oil of NAS7 class or above when filling the pump. Be sure to use a clean oil can.
Carry out Steps 1 - 3 below to bleed the air. If necessary, carry out Steps 4 - 6 in addition.
1. Bleeding air from pump