Figure 4-8.Throwing a back turn to make wire lie down.
HANDLING AND CARE OF WIRE ROPE
To render safe, dependable service over a
maximum period of time, wire rope must have the
care and upkeep necessary to keep it in good
condition. In this section, well discuss various ways
of caring for and handling wire rope. Not only should
you study these procedures carefully, you should also
practice them on your job to help you do a better job
now. In the long run, the life of the wire rope will be
longer and more useful.
Coiling and Uncoiling
Once a new reel has been opened, it may be either
coiled or faked down like line. The proper direction
of coiling is counterclockwise for left-laid wire rope
and clockwise for right-laid rope. Because of the
general toughness and resilience of wire, however, it
occasionally tends to resist being coiled down. When
this occurs, it is useless to fight the wire by forcing
down a stubborn turn; it will only spring up again.
But if it is thrown in a back turn, as shown in
figure 4-8, it will lie down properly. A wire rope,
when faked down, will run right off like line; but
when wound in a coil, it must always be unwound.
Wire rope tends to kink during uncoiling or
unreeling, especially if it has been in service for a
long time. A kink can cause a weak spot in the rope,
which will wear out quicker than the rest of the rope.
A good method for unreeling wire rope is to run a pipe
or rod through the center and mount the reel on drum
jacks or other supports so the reel is off the ground or
deck (figure 4-9.) In this way, the reel will turn as the
rope is unwound, and the rotation of the reel will help
keep the rope straight.
During unreeling, pull the
rope straight forward, as shown in figure 4-9, and try
to avoid hurrying the operation. As a safeguard
against kinking, never unreel wire rope from a
To uncoil a small coil of wire rope, simply stand
the coil on edge and roll it along the ground or deck
like a wheel or hoop, as illustrated in figure 4-9.
Never lay the coil flat on the deck or ground and
uncoil it by pulling on the end because such practice
can kink or twist the rope.
To rewind wire rope back onto a reel or a drum,
you may have difficulty unless you remember that it
tends to roll in the direction opposite the lay. For
example, a right-laid wire rope tends to roll to the left.
Figure 4-9.Unreeling wire rope (left) and uncoiling wire rope (right).