Y-4
Y-4
Air Bleeding Procedure
27
WY05-5140E
5. Winch counterbalance valve
(main and auxiliary)
[NOTICE]
For the main and auxiliary winch, bleed the
counterbalance valves as follows:
1. Engine speed: idling (770 min
-1
)
2. Lever operation: Repeat the slow hoisting up and
slow hoisting down operations, to the smallest
amount which allows drum rotation.
3. When there are no more bubbles in the oil that
flows out, tighten the plug while the oil continues
to flow.
6. Slewing control valve
(back-pressure valve)
[NOTICE]
Conditions
Engine speed : Max. (1700 min
-1
)
PTO
: ON
Slewing brake : ON
1. Open the air-bleed plug and rapidly move the
slewing lever repeatedly between left slewing and
right slewing.
2. When there are no more bubbles in the oil that
flows out, tighten the plug while the oil continues
to flow.
Содержание GR-130EX
Страница 1: ......
Страница 8: ...7 WA04 5470E 6 Group index System Diagrams Data Adjustment and Checks Y Z Y Z ...
Страница 27: ...Y 2 Y 2 Adjusting Pressure Hydraulic Pressure 14 WY02 2090E ...
Страница 150: ...Z 14 WZ03 4392E View System Z 14 Z 14 78 78 0 343 812 73200 5 Cable A IWZ03 439201E ...
Страница 151: ...Z 14 WZ03 4392E View System Z 14 Z 14 79 79 0 343 818 71200 6 Cable B IWZ03 439202E ...