Malfunctions during crane operation
14.6 Hydraulic emergency operation
Operating Manual GMK6300L 3 112 xxx en 14 - 71
xx.xx.xxxx
For lifting/
lowering
After establishing hydraulic circuits, switch one additional valve to
continuous operation.
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) on to the valve –
continuous operation is now switched on.
Switching off continuous operation
• Remove the cap (3) from the actuated
valve (1), (2).
• Screw the cap on so that the pin (4) can be
seen.
• Insert the plug (5).
s
1 Valve Y1104 – Lowering or
2 Valve Y1105 –
Lifting
S
Danger due to falling loads!
Switch off continuous operation immediately after the emergency activa-
tion.
Check whether the pins can be seen on both caps.
In this way, you can prevent loads falling immediately after being lifted
during subsequent crane operations.
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