Malfunctions during crane operation
14.6 Hydraulic emergency operation
Operating manual GMK 6400 3 112 993 en 14 - 63
12.07.2013
14.6.4 Establishing the required hydraulic circuits
To establish an hydraulic circuit, switch over the required valves.
Switching over
valves
The valves 1 to 7 are numbered.
For crane operation
• Switch the valves 1 to 7 inwards.
s
G
Danger from mutual interference of the power units
For crane operation, always switch all the valves 1 to 7 inwards. This pre-
vents the power units from suddenly starting to move.
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