Manitowoc GROVE GMK 3060 Maintenance Manual page 260

Maintenance work on the superstructure
8.8 Hoist ropes
S
Damage
Wire break (1) Individual wires are
broken; the broken
Wire
ends of the wires
breakage
are protruding
cluster (2)
from the rope.
Strand
breakage (3)
Effect of heat Tarnished colour is
visible externally
on the rope.
8 - 50
Risk of accidents due to reduced load bearing capacity!
Remember that other factors may also make it necessary to replace a rope
before the number of wire breaks requiring rope replacement has been
reached (age of rope, frequency of use or exceptional loading).
Description
General wear caused
by ageing of the rope
or
Consequential
damage resulting
from damage to the
rope.
Rope has been
subjected to excessive
heat.
Cause
3 302 574 en
Replacement
Replace the rope at the latest
when the maximum
permissible number of wire
breaks according to the table
are visible externally.
Replace the rope immediately if
wire breakage clusters or strand
breakages occur.
The frequency of wire breaks
increases with a rope's age. For
safety reasons, it is advisable to
replace the rope while the
number of wire breaks is
still low.
Replace the rope immediately.
Maintenance manual
GMK3060