1. The end of the rope must be secured to the drum by such means as will give the end
attachment at least as much strength as is specified by the equipment manufacturer.
2. Adequate tension must be maintained on the rope while it is being wound so that the
winding proceeds under continuous tension.
3. The rope must follow the groove.
4. There should be at least three dead turns remaining on the drum when the rope is
unwound during normal operation Two dead turns are a mandatory requirement in
many codes and standards.
If the wire rope is carelessly wound and, as a result, jumps the grooves, it will be crushed
and cut where it crosses from one groove to the other. Another, almost unavoidable
problem is created at the drum flange; as the rope climbs to a second layer there is further
crushing and the wires receive excessive abrasion. Riser and filler strips may help remedy
this condition.
DRUMS-PLAIN (SMOOTH)
Installation of a wire rope on a plain (smooth) face drum requires a great deal of care. The
starting position should be at the drum end so that each turn of the rope will wind tightly
against the preceding turn (Fig.26). Here too, close supervision should be maintained all
during installation. This will help make certain that:
1. the rope is properly attached to the drum,
2. appropriate tension on the rope is maintained as it is wound on the drum,
3. each turn is guided as close to the preceding turn as possible, so that there are no
gaps between turns,
4. and that there are at least two dead turns on the drum when the rope is fully unwound
during normal operating cycles.
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