80
Maintenance and Service
Operator's Manual GB
9.3.4
9.3.4 Check rope
WARNING
As ropes undergo very heavy strain and are
not of permanent durability, it is important
for the safety of the hoist system and like
this for their operating personnel, to carry
out a thorough check-up and to renew the
rope in time.
After every use the rope has to be checked
for damage according to the national regu-
lations of the country of application.
Various types of damage are illustrated on
the right that indicate when the rope needs
to be replaced: Reduction of rope nominal
diameter by more than 10%, corkscrew-
type deformation, kinked rope, contrac-
tioned rope, flattening rope, loop formation
of wires on the rope, knots on the rope,
splicing on the rope, basket formation on
the rope, loose wires in the rope, individual
wire breakages.
WARNING
A rope has to be discarded, when there are
(number of ruptures in the outer layers
according to DIN 15020; ISO 4309):
2 ruptures on a length of 6 x d,
- resp. for rope diam.Ø d= 7, 8 10
4 ruptures on a length of 30 x d,
- resp. for rope diam. Ø d= 12, 14, 16.
5 ruptures on a length of 30 x d.
9.3.5 Cleaning the rope
In case the rope is extremely dirty the rope has to
be cleaned with clear water and a brush before it
is spooled again onto the drum.
After each wet cleaning use spray oil on the rope.
