Full Product Manual

WIRE ROPE INSPECTION, USE, AND CARE
The following information is NOT a complete discussion of wire rope.
WHAT FOLLOWS IS A BRIEF OUTLINE OF THE BASIC INFORMATION REQUIRED TO SAFELY USE
WIRE ROPE AND WIRE ROPE SLINGS.
Equalizing and Lifting Cables should be replaced every three years when visible signs of damage are
apparent. DO NOT USE THE LIFT WITH DAMAGED OR WORN CABLES.
Wire Rope should be maintained in a well-lubricated condition at all times. Wire rope is only fully protected
when each wide strand is lubricated both internally and externally. Excessive wear will shorten the life of the
wire rope. The manufacturer suggests using a wire rope lubricant that penetrates to the core of the wire
rope, providing long term lubrication. All wire rope, sheaves and guide rollers in continuous service should
be observed during normal operation and visually as per the scheduled maintenance. A complete and
thorough inspection of all ropes in use must be made as below and all rope which has been idle for a period
of a month or more should be given a thorough inspection before it is put back into service. Factors such as
abrasion, wear, fatigue, corrosion, improper winding and kinking are often of greater significance in
determining if a wire rope
is usable.
1. Wire rope WILL FAIL IF WORN OUT, OVERLOADED, MISUSED, DAMAGED or IMPROPERLY
MAINTAINED.
2. In service, wire rope loses strength and work capability. Abuse and misuse increase the rate of loss.
3. The NOMINAL STRENGTH, sometimes called CATALOG strength, of a wire rope applies ONLY to a
NEW, UNUSED rope.
4. The Nominal Strength of a wire rope SHOULD BE CONSIDERED the straight line pull which will
ACTUALLY BREAK a new, UNUSED rope. The Nominal Strength of a wire rope should NEVER BE
USED AS ITS WORKING LOAD.
5. WIRE ROPES WEAR OUT. The strength of a wire rope begins to decrease when the rope is put in use,
and continues to decrease with each use.
6. NEVER OVERLOAD A WIRE ROPE. This means NEVER USE the rope where the load applied to it is
greater than the working load determined by dividing the Nominal Strength of the rope by the
appropriate Design Factor.
7. NEVER "SHOCK LOAD" a wire rope. A sudden application of force or load can cause both visible
external damage and internal damage. There is no practical way to estimate the force applied by shock
loading a rope. The sudden release of a load can also damage a wire rope.
8. Lubricant is applied to the wires and strands of a wire rope when it is manufactured. This lubricant is
depleted when the rope is in service and should be replaced periodically.
9. Regular, periodic INSPECTIONS of the wire rope, and keeping of PERMANENT RECORDS. The
purpose of inspection is to determine whether or not a wire rope may continue to be safely used on that
application. Inspection criteria, including number and location of broken wires, wear and elongation,
should be recorded. IF IN DOUBT, REPLACE THE ROPE. An inspection should include verification that
none of the specified removal criteria for this usage are met by checking for such things as:
• Surface wear: Normal and unusual.
• Broken wires: Number and location.
• Reduction in diameter.
• Rope stretch (elongation).
• Integrity of end attachments.
In addition, an inspection should include the condition of sheaves, drums and other apparatus with which
the rope makes contact.
TORIN COMMERCIAL EQUIPMENT
59 REV 190425