Maintenance work on the superstructure
8.8 Hoist ropes
8 - 52 3 302 574 en Maintenance manual
GMK3060
03.11.2017
Damage Description Cause Replacement
Loop
formation (1)
Outer layer wires in
the form of hair pins
are protruding from
the rope away from
the sheave.
General wear due to
ageing of the rope or
consequential
damage as a result of
damage to the rope.
Immediately replace the rope if
the rope structure has been
substantially altered by the
loop formations.
Loosening of
wires or
strands (2)
Outer wires or
strands have
become loose. Only
the inner strands
continue to bear the
load.
Corrosion or
abrasion.
Replace the rope immediately.
Other causes. The number of wire breaks
determines when the rope
must be replaced.
Knot
formation (3)
If there is repeatedly
occurring knot-like
thickening of the
rope; the insert
comes out
frequently.
Strands bear on
each other at thin
points; increased
frequency of wire
breaks.
General wear due to
ageing of the rope or
consequential
damage as a result of
damage to the rope.
Determine number of wire
breaks; replace rope
immediately if serious knot
formation occurs.
Constric-
tion (4)
Diameter reduction
over short sections.
General wear caused
by ageing of the rope.
Replace rope immediately if
serious constrictions are
detected.
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