Malfunctions during crane operation
14.6 Hydraulic emergency operation with the hand pump
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GMK4090
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14.6.2 Switching over the crane's hydraulic system
H
If you wish to move the hoist during emergency operation, you can open
tap 4 at the beginning of the operation – as described in this section – this
leads to the elimination of this step later during emergency operation. This
does not affect the emergency operation of the other power units.
for crane operation
• Open the valve (4) and secure it using the
lock (1).
For emergency operation
• Remove the lock (1) and close the valve (4).