Malfunctions during crane operation
14.6 Hydraulic emergency operation
14 - 66 3 112 993 en Operating manual GMK 6400
12.07.2013
Derricking • Determine the maximum permissible working radius for the current rig-
ging mode according to
Lifting capacity table
Lowering the boom
• Observe the maximum permissible working
radius specified in the
Lifting capacity table –
if necessary by using a measuring tape to
check.
• Move the control lever (2) towards B.
Raising the boom
• Move the control lever (1) towards B.
Lifting/lowering
• Move the control lever (1) in the required
direction:
G
Danger of overturning if the working radius is too large when lowering the
boom
In emergency operation, operations are not shut down by the RCL. This
also applies if the RCL displays are still active after switching on the igni-
tion. The truck crane will overturn if you exceed the maximum permissible
working radius for the current rigging mode as specified in the
Lifting capac-
ity table
.
A: Lowering
B: Lifting
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