R&M Materials Handling WIRE ROPE HOISTS Service User Manual
Page 97
R&M Materials Handling, Inc.
4501 Gateway Boulevard
Springfield, Ohio 45502
P.: (937) 328-5100
FAX: (937) 325-5319
97/130
R&M Materials Handling, Inc. reserves the right to alter or amend the above information without notice.
Protrusion of rope parts
Rope with rise up of core, strand or group of wires shall be changed immediately.
Loose outer strands
The outer strands of the ropes shall be tight, when the rope is not loaded. In standard and heavy duty
ropes the outer strands can have small, visible gap under load. If the gap does not close when the load is
released, the rope shall be changed.
Kink
Kink or tightened loop is created by a loop in the rope which has been tightened without allowing for
rotation about its axis. Rope with a kink shall be changed immediately.
Bends
c_rowavi1a
Bends and angular deformations are normally caused by external influence. Broken wires shall be
carefully studied in the area of bends. Discard criteria for a bend is: e < 2 x d over a length of 10 x d. A
milder bend can often be removed by carefully bending the rope by hand in the opposite curve. Rope
with sharp bend shall be changed immediately.