Malfunctions during crane operation
14.6 Hydraulic emergency operation with the hand pump
Operating manual 3 302 690 en 14 - 55
GMK4100L-1
23.11.2017
14.6.4 Performing emergency activation
If the required hydraulic circuit has been
established, you can make the corresponding
crane movement using the hand pump (1).
• Insert the pump lever (2) provided into the
holder at the hand pump lever.
• Pump with the lever – the corresponding
crane movement is performed.
14.6.5 After emergency activation
You must restore the truck crane to its original state after finishing
emergency activation.
After each emergency activation
• Switch valves 1 to 3 to crane operation; à p. 14 - 53.
• Switch the valve 4 to crane operation; à p. 14 - 51.
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