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INSTALLATION PROCEDURE OF NON-ROTATING WIRE ROPE IN THE CRANE
The trouble-free and long service life of every wire rope, especially
of the multi-stranded, non-rotating wire ropes, depends 100% on their proper installation
in the crane.
By proper installation we mean kink & torsion-free installation.
The following steps must be carefully taken:
- We should lay the new wire rope on the deck for the kinks -
if any - to be removed before connecting it to the old wire rope.
- The installation of the new rope and removal of the old one
from the crane winch / drum must take place in one continuous operation making
absolutely sure that no accumulated stresses/torsions are transferred to the new
wire rope.
- From this point onward, special attention must be given to
the coupling of the socket / thimble fitted onto the wire rope to the crane itself.
In no case, should loose wire ropes be left lying about on the
deck, when the socket / thimble is to be attached, otherwise kinks will form and
after a short period of operation in the crane, ropes will swell and eventually
be destroyed. Therefore, make always sure that the socket / thimble end, before
it's firmly attached to the crane, is left to hang loose, so that all kinks are
removed from the rope and no other are created.
What follows the proper installation and it's of the same importance
is the so-called 'running in' period, during which some windings and unwindings
must be effected, initially with the ? of the maximum working load. The same is
repeated without load. In case we find, that after the inspection, the cargo block
tends to turn, that means that kinks had been formed during the installation.
In such case, the socket / thimble must be detached, thus allow the kinks to be
relieved.
This procedure must be repeated until the wire rope is fully
ran-in and adjusted to the operating conditions.
In conclusion, the proper installation, lubrication & inspection,
and running-in period guarantee a long service life and trouble-free operation.
WARNING: DO NOT EXCEED WORKING LOAD LIMIT.
USE THE PROPER WIRE
ROPE FOR THE RIGHT JOB.
More detailed instructions on installation
See also:
- Discard Criteria for replacement of wire ropes
- Wire Rope Mishandling-Deformations
- Diagnostic Guide to common wire rope degradation
- Use and Care of Wire Rope
- Wire Rope Installation
- Spooling
- Resin Pouring
- Flemish eye instructions
- Quick instructions
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