Malfunctions during crane operation
14.6 Hydraulic emergency operation
14 - 50 3 302 633 en Operating Instructions GMK5250L
27.09.2017
14.6.3 Connecting/disconnecting the energy source
Connecting
The hoses for the pressure line and suction
line are assigned according to the various
diameters.
• Connect the air traffic control light to the
connection (1).
• Connect the suction line to the fatter
connection (2).
Removing
• Remove the hoses from the connections (1)
and (2).
• Seal the connections with the caps.
14.6.4 Performing emergency operation
Starting crane movements
• Switch on the hydraulic energy source.
The crane movements are performed according to the switched hydraulic
circuits.
Stopping crane movements
• Switch off the hydraulic energy source.
14.6.5 After emergency operation
You must restore the truck crane to its original state after finishing
emergency operation.
• Disconnect the hydraulic energy source; à Removing, p. 14 - 50.
• Switch off the continuous operation; à p. 14 - 49.
• Close the valves; à For crane operation, p. 14 - 48.
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