Elliott Digger Derrick, Руководство по эксплуатации и техническому обслуживанию, Страница: 145 / 376

Synthetic Rope Usage EEC-0060 V1.2
Synthetic Rope Usage,
Inspection, and Retirement
Assume that you have seven identical ropes, each with a 30,000-lb breaking
strength and you work these ropes daily with each rope lifting a different load. The
higher the working load factor, the greater the service life and the lower the replacement
factor. Therefore, the working load factor directly reflects the economy of the purchase.
NOTE: Many industries are subject to state and federal regulation on workload limits
that supersede the manufacturer’s recommendation. It is the responsibility of the rope
user to be aware of and adhere to those laws and regulations.
Rope Handling/Usage
WARNING-Persons should be warned against the serious danger of standing in
line with a rope under tension. Should the rope part, it may recoil with
considerable force and speed. In all cases where any such risks are present, or
where there is any question about the load involved, or the condition of use, the
working load should be substantially reduced and the rope properly inspected
before every use.
Attaching Line to a Winch Drum
There are various methods of attaching a winch line to a winch drum:

Using a wedge/plug and set-screw in the drum’s main body

Using a “U” bolt through the side of the side of the flange

Welding a round plug to the winch drum, and then place the soft eye at the end
of the winch line over the plug and secure with a flat keeper
It is strongly recommended to have an eye splice in both ends of the winch so that it
can be reversed in the event of damage to one end; however, this is not always
possible depending upon the method of attachment to the winch drum and whether or
not a closed thimble is spliced into the eye. If an eye is not used at the drum end, it
should be tightly whipped with a strong twine.