Manitowoc GROVE GMK3060

Rigging work
12.7 Rigging work on the main boom
12 - 96 3 302 819 en Operating manual
GMK3060
13.12.2018
If only one lifting limit switch has been
installed
• Cover the unused socket with the protective
cap (1).
• Check that the lock has been released on the
lifting limit switch used, e.g. (2);
à Unblocking,
p. 12 - 100.
If two lifting limit switches have been installed
• Lock the lifting limit switch to which no lifting
limit switch weight has been attached.
If the lifting limit switch weight has, e.g. been
attached to the left lifting limit switch (1), you
must lock the right lifting limit switch (2);
à Locking, p. 12 - 100.
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.