Rigging work
12.10 Rigging work on the main boom
12 - 142 3 302 736 en Operating manual
GMK4090
xx.xx.xxxx
If only one lifting limit switch has been
installed
• Cover the unused socket with the protective
cap (2).
• Check whether the lock on the used lifting
limit switch, e.g. (1), is released;
à Removing the lock, p. 12 - 146.
If two lifting limit switches have been
installed
• Lock the lifting limit switch to which no lift-
ing limit switch weight has been attached.
If the lifting limit switch weight has, for exam-
ple, been attached to the left lifting limit
switch (1), you must lock the right lifting limit
switch (2);
à Locking, p. 12 - 146.
Otherwise the movements
Raise hosting gear,
Telescope out and Lower the boom will be locked.
S
Risk of damage if the lifting limit switch is locked
The lifting limit switch must not be locked. Remove the lock, if necessary.
If the lifting limit switch is locked, the hook block could hit the bottom of the
main boom head during the lifting procedure, resulting in damage to the
hook block, main boom head and hoist rope.
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