Malfunctions during crane operation
14.6 Hydraulic emergency operation
Operating Manual GMK6300L 3 112 xxx en 14 - 69
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14.6.4 Establishing the hydraulic circuits required
To establish an hydraulic circuit, switch over the required valves and possi-
bly also perform additional switching operations for lifting/lowering or
slewing.
Switching over
valves
The valves 1 to 5 are numbered.
For crane operation
• Switch the valves 1 to 5 downward.
s
G
Danger from mutual interference of the power units!
For crane operation, always switch all the valves 1 to 5 down. This prevents
the power units suddenly starting to move.