Malfunctions during crane operation
14.6 Hydraulic emergency operation with the hand pump
14 - 54 3 302 819 en Operating manual
GMK3060
13.12.2018
For crane operation
• Switch the valves (1), (2) (3) and (4)
downwards – valves closed.
For lifting/lower-
ing the load
You must additionally switch a valve to continuous operation for lowering.
Switching on continuous operation
Always switch only one valve to continuous
operation.
• Unscrew the cap (3), e.g. from the valve (1).
• Remove the plug (5).
• Screw the cap and pin (4) onto the valve –
continuous operation is switched on.
G
Danger from mutual interference of the power units!
For crane operation, always switch all the valves 1 to 4 to the Crane operation
position. This prevents the power units suddenly starting to move.
1 Valve Y1105 – Raising or
2 Valve Y1104 –
Lowering
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