Y-4
Y-4
Air Bleeding Procedure
26
WY05-5140E
4. Hydraulic motor assy
4.1 Slewing motor
[NOTICE]
Do not apply any load to the motor before
completing air bleeding.
Bleed the slewing motor by following either (1), (2) or
(3).
(1) Pour the hydraulic oil from the drain port until the
oil flows out.
(2) Perform the right or the left slewing operation
slowly for approximately 1 minute.
(3) With the slewing brake being actuated, perform
the right or the left slewing operation and keep
the slewing circuit hydraulic pressure at
approximately 4.9 MPa (50 kgf/cm
2
) (710 psi) for
approximately 30 seconds.
4.2 Winch motor
[NOTICE]
Do not apply any load to the motor before
completing air bleeding.
Bleed the winch motor by following either (1) or (2).
1. Pour the hydraulic oil from the drain port until the
oil flows out. (After connecting all pipes, pour oil
just before starting the motor.)
(2) Perform the slow hoisting up or hoisting down
operation for approximately 1 minute or more with
the engine idling.
4.3 Air conditioner motor
Before operating the air conditioner motor, pour
the hydraulic oil from the drain port until the oil
flows out.
Содержание GR-130EX
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