Rigging work
12.7 Rigging/unrigging the counterweight
12 - 86 3 112 993 en Operating manual GMK 6400
12.07.2013
Unlocking the counterweight
• Open the safety valve; à p. 12 - 87.
• Press the button (1). The lamp lights up.
• Press the key combination (2), until the lamps (3) are lit.
If a locking pin has not yet reached the
Locked end position, the correspond-
ing lamp will flash.
• Close the safety valve; à p. 12 - 87.
Retracting the lifting cylinders
• Press the button (1). The lamp lights up.
• Press the key combination (2) until the lifting cylinder is fully retracted.
The counterweight is now lowered onto the counterweight platform.
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