Manitowoc GROVE GMK3060

Rigging work
12.7 Rigging work on the main boom
Operating manual 3 302 819 en 12 - 97
GMK3060
13.12.2018
Attaching the lifting limit switch weight
• Attach the lifting limit switch weight (1).
This lifting limit switch must not be locked;
à Unblocking, p. 12 - 100.
If two hoist ropes are reeved, you must attach a
lifting limit switch weight to each of the two lifting
limit switches.
Placing a lifting limit switch weight around the
hoist rope
• (A) – Pull the safety pin (1) out and fold the two
halves of the weight apart.
• (B) – Place the two halves of the weight around
the last rope line leading upwards.
• Pull the safety pin (1) out and fold the two
halves of the weight back together.
• Make sure the safety pin locks into place and
the two halves of the weight are securely
attached to each other.
If two hoist ropes are reeved, you must also place
a lifting limit switch weight around the second
hoist rope.
H
If you place the lifting limit switch weight around the last rope line leading
upwards, less rope will run through the lifting limit switch weight, especially if
there is a high number of reevings per lifting operation. This rope line will even be
at a standstill if the number of rope lines is even.
This allows you to reduce the wear of the hoist rope and lifting limit switch weight
and prevent unintentional deactivation procedures that may be caused by the
running hoist rope lifting the lifting limit switch weight.
s