STANDARD HANDBOOK OF PETROLEUM & NATURAL GAS ...

Hoisting System 593
This solution is used at room temperature. The broom should be immersed
from 30 to 90 s. The depth of immersion in the solution must not be more
than broomed length. The wires should then be dipped in clean hot water.
UItrasonic cleaning (a// grades). An ultrasonic cleaner suitable for cleaning wire
rope is permitted in lieu of the acid cleaning methods described previously.
Other cleaning methods. Other cleaning methods of proven reliability are
permitted.
Attaching Socket. Preheat the socket to approximately 200°F (93°C). Slip socket
over ends of wire. Distribute all wires evenly in the basket and flush with top
of basket. Be sure socket is in line with axis of rope.
Use only zinc not lower in quality than high grade per ASTM Specification B-6.
Heat zinc to a range allowing pouring at 950°F (5lOOC) to 975°F (524°C). Skim off
any dross accumulated on the surface of the zinc bath. Pour molten zinc into the
socket basket in one continuous pour if possible. Tap socket basket while pouring.
Final Preparation. Remove all seizings. Apply lubricant to rope adjacent to
socket to replace lubricant removed by socketing procedure. Socket is then ready
for service.
Splicing. Splicing wire rope requires considerable skill, and the instructions for
splicing wire rope will be found in the catalogues of most of the wire-rope
manufacturers, where the operation sequence is carefully described, and many
clear illustrations are presented. These illustrations give, in fact, most of the
information needed.
Socketing (Thermo-Set Resin). Before proceeding with thermo-set resin
socketing, the manufacturer's instructions for using this product should be
carefully read. Particular attention should be given to sockets designed specifically
for resin socketing. Other thermo-set resins used may have specifications
that differ from those shown in this section.
Seizing and Cutting the Rope. The rope manufacturer's directions for a
particular size or construction of rope are to be followed with regard to the
number, position, and length of seizings, and the seizing wire size to be used.
The seizing, which will be located at the base of the installed fitting, must be
positioned so that the ends of the wires to be embedded will be slightly below
the level of the top of the fitting's basket. Cutting the rope can best be
accomplished by using an abrasive wheel.
Opening and Brooming the Rope End. Prior to opening the rope end, place
a short temporary seizing directly above the seizing that represents the base of
the broom. The temporary seizing is used to prevent brooming the wires to full
length of the basket, and also to prevent the loss of lay in the strands and rope
outside the socket. Remove all seizings between the end of the rope and the
temporary seizing. Unlay the strands comprising the rope. Starting with the
IWRC, or strand core, open each strand and each strand of the rope, and broom
or unlay the individual wires. (A fiber core may be cut in the rope at the base
of the seizing. Some prefer to leave the core in. Consult the manufacturer's
instructions.) When the brooming is completed, the wires should be distributed
evenly within a cone so that they form an included angle of approximately 60".