Rigging work
12.7 Rigging/unrigging the counterweight
12 - 84 3 112 993 en Operating manual GMK 6400
12.07.2013
Counterweight
rigging
To rig the counterweight, you must extend the lifting cylinder in order to
raise the counterweight. Then you must lock the counterweight on the
superstructure and then extend the lifting cylinder into the 15 t base plate.
Extending the lifting cylinders
• Check that the lamp (1) lights up (locking cylinders are unlocked).
• Press the button (1). The lamp lights up.
• Press the key combination (2) until the counterweight is fully raised.
Locking 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.
The counterweight is now locked at the turntable.
If a locking pin has not yet reached the
Locked end position, the correspond-
ing lamp will flash.
S
Risk of damage when raising the counterweight
Always check that the two red lamps
O
are lit before lifting the counter-
weight with the lifting cylinder.
If the green lamps
o
are lit then the locking cylinders are extended. These
would be pressed against the mountings on the turntable and damage
them.
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