Malfunctions during crane operation
14.7 Hydraulic emergency operation as per BGR 159
Operating manual 3 302 736 en 14 - 67
GMK4090
xx.xx.xxxx
For slewing After switching over the valves behind the crane cab, you must also close a
valve.
Emergency operation position
• Close the valve 6 – lever (1) at right angles to
the line.
Crane operation position
• Open the valve 6 – lever (1) parallel to the
pipe.