Y-4
Y-4
Air Bleeding Procedure
25
WY05-4550E
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 one 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 main and auxiliary winch motors 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.
Summary of Contents for GR-500EXL-3
Page 1: ......
Page 8: ...7 WA04 4610E 6 Group index System Diagrams Data Adjustment and Checks Y Z Y Z...
Page 102: ...Z 7 Z 7 Hydraulic Parts Location Diagram Lower 31 WZ07 3950E 2 Steering 2 346 418 02000...
Page 108: ...37 WZ08 0590E Z 9 Z 9 Pneumatic Parts Location Diagram 3 Control parts lower 4 349 232 60000...
