Y-4
Y-4
Air Bleeding Procedure
32
WY05-3900E
8. Positive control circuit
While any of the crane operations described in
"7. Pilot circuit (hydraulic pilot control valve)". is
performed, loosen the air-bleed plug near the
lower pump to bleed the positive control circuit.
You can bleed the circuit at the same time with
pilot circuit bleeding.
9. Slewing control valve
(back-pressure valve)
[NOTICE]
Conditions
Engine speed : Max
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.
エア抜きプラグ
IWY05-044007
Hydraulic pilot control valve (for slewing)
Air-bleed plug
Main pump
Hydraulic pilot control valve (for slewing)
Mounted to right of slewing table
Air-bleed plug
(for back-pressure valve)
Содержание GR-700N
Страница 1: ......
Страница 8: ...7 WA04 4651E 6 Group index System Diagrams Data Adjustment and Checks Y Z Y Z...
Страница 130: ...Z 6 Z 6 Hydraulic Parts Location Diagram Upper 26 WZ07 3531E 2 Telescoping 3 342 115 30000 0 343 463 51500...
Страница 132: ...Z 6 Z 6 Hydraulic Parts Location Diagram Upper 28 WZ07 3531E 5 Return 4 343 463 53000...
Страница 133: ...Z 6 Z 6 Hydraulic Parts Location Diagram Upper 29 WZ07 3531E 6 Drain Detail A 5 343 463 55000...
Страница 134: ...Z 6 Z 6 Hydraulic Parts Location Diagram Upper 30 WZ07 3531E 7 Gauge 0 343 463 56000...
Страница 135: ...Z 6 Z 6 Hydraulic Parts Location Diagram Upper 31 WZ07 3531E 8 Pilot 3 343 463 57000...
Страница 139: ...35 WZ07 3531E Z 6 Z 6 Hydraulic Parts Location Diagram Upper 14 Jib main unit 2 343 463 43000...
Страница 143: ...39 WZ07 3541E Z 7 Z 7 Hydraulic Parts Location Diagram Lower 4 Center joint 8 346 416 64000 opposite side...
Страница 144: ...40 WZ07 3541E Z 7 Z 7 Hydraulic Parts Location Diagram Lower 5 Return Rear Front Front 2 346 416 65001...
Страница 150: ...46 WZ08 0510E Z 9 Z 9 Pneumatic Parts Location Diagram 2 Service brake related lower 5 349 229 90000...
Страница 151: ...47 WZ08 0510E Z 9 Z 9 Pneumatic Parts Location Diagram 3 Control parts lower 2 349 230 00000 2 349 230 02000...
Страница 193: ...89 WZ03 7090E Z 14 Z 14 View System 3 3 Cable B 0 343 818 40450...
Страница 199: ...95 WZ03 7090E Z 14 Z 14 View System 4 Screen selection switch 0 343 546 51800...