Komatsu PC350LC-8, Руководство по эксплуатации и техническому обслуживанию

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MAINTENANCE
MAINTENANCE PROCEDURE
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2) If oil does not ooze out, stop the engine, remove port S
hose (3), and fill the inside of the motor case with hydraulic
oil.
3) After completely bleeding the air from the swing motor, tighten port S hose (3).
4) Run the engine at low idle and slowly swing at least two times uniformly to the left and right. This will automat-
ically bleed the air from the swing circuit.
NOTICE
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If the air is not bled from the swing motor, the motor bearings may be damaged.
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When replacing the travel motor safety valve, please contact your Komatsu distributor to have it
replaced and to have the air bled.
5. Bleeding air from travel motor
(Bleed the air only when the oil inside the travel motor case has been drained.)
1) Run the engine at low idling, loosen air bleeder (4), and
tighten it when oil flows out.
2) Run the engine at low idle and swing the work equipment
90° to bring it to the side of the track.
3) Jack up the machine until the track is raised slightly from
the ground. Rotate the track under no load for 2 minutes.
Repeat this procedure on both the left and right sides.
6. Bleeding air from attachment (when installed)
If a breaker or other attachment has been installed, run the engine at low idle and operate the attachment
pedal repeatedly (approx. 10 times) until the air has been bled from the attachment circuit.
NOTICE
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If the method of bleeding the air from the attachment itself is specified by the manufacturer, bleed the
air according to the specified procedure.
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After completing the air bleeding operation, stop the engine, and leave the machine for 5 minutes
before starting operations. This will remove the air bubbles in the oil inside the hydraulic cylinders.
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Check that there is no leakage of oil and wipe off any oil that has been spilled.
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After completing the air bleeding operation, inspect the oil level, and if the oil level is low, add oil.