Y-8
Y-8
Operation Check (Crane Operation)
47
WY05-2492E
4. Boom telescoping control
[Boom length: 5.3 - 23.8 m (17.4 - 78 ft)]
CN503: 4th/top boom emergency telescoping switch
CN504: 2nd/3rd boom emergency telescoping switch
CN506: 4th/top boom extending switch
CN859: 4th/top boom full retraction detection switch
CN553: 2nd/3rd boom full retraction detection switch
4.1 Extension
4.2 Retraction
5.3 m (17.4 ft) boom (base)
Telescoping is possible only
for 2nd and 3rd boom.
Boom length: 12.5 m (41.0 ft)
CN506 switch: OFF
2nd and 3rd boom can be moved to the
stroke ends.
(AML works on the basis of performance
with the 3rd shortest boom.)
CN506 switch: ON
Extension of 4th to top boom is possible.
(When CN859 switch turns OFF, AML begins to
work on the basis of performance with the 4th
shortest boom.)
Approximately 16.4 m (53.8 ft) boom
(4th shortest)
4th to top boom retract.
CN859 switch: ON
2nd and 3rd boom retracts.
(Even if stroke remains for the 4th to top
boom at this time, the hydraulic valve orifice
causes them to retract fully.)
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 ...