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Installation, Operation and Maintenance Recommendations
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Next: (continued)
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WIRE ROPE
INSTALLATION, OPERATION AND
MAINTENANCE RECOMMENDATIONS
The primary factor in wire rope performance is selecting a
A coil should be unwound by rolling along the floor like a
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wire rope with the best combination of properties for the
hoop. Coils should never be laid flat and the free end
job. The service life of that rope can be greatly extended
pulled out.
by following a planned program of installation, operation,
maintenance and inspection to avoid the most common
Winding on a Drum
causes of wire rope failure:
KINKING will result in permanent rope deformation and
localized wear. It is generally caused by allowing a loop to
form in a slack line and then pulling the loop down to a
right permanent set.
OVERLOADING results in accelerated wear, abrasion,
rope crushing and distortion on drums and sheaves, and
could result in complete rope failure.
DRAGGING wire rope over a bank or some other object
results in localized wear, which means shorter life.
IMPROPER SPOOLING results in crushed and distorted
ropes and comes from careless installation and operation
of the rope.
WHIPPING a line, which results in many squared off bro
Proper practices for transferring rope form reel to drum:
ken wires, comes from jerking or running the line loose.
The reel should be placed as far from the drum as possi
ble in order avoid putting any turn into the rope.
The following recommendations are general guides for
Rope should be wound from top to top or bottom to bot
getting the longest life from your wire rope. West Coast
tom to avoid reverse bends, which tend to make a rope
Wire Rope representatives are available to provide advice
harder to handle.
in specific situations. Our technology and experience are
Use enough tension to avoid kinking.
as close as your telephone.
There is usually only one way to install rope on a grooved
Unloading, Unreeling and Uncoiling
drum.
Suitable precautions should be taken to prevent dropping
of reels or coils during unloading and moving. If the reel
should collapse, it may be impossible to remove the rope
without serious damage.
Special care should be taken in unreeling wire rope to
avoid kinking, which can result in permanent damage to
the rope. The reel should be mounted on jacks or a
On ungrooved drums, the rule of thumb guides installa
turntable so that it will move freely. It should be unreeled
tion. The first represents the drum; the index finger the
straight and under enough tension to keep it from starting
wire rope; and the thumb the direction of the proper dead
a loop.
end location. use the right hand for right lay ropes, left
hand for left lay ropes. For overwinding, the palm is down;
for underwinding, the palm is up. Most drum anchors are
set for right lay rope since it is the most common specifica
tion.
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