Atlas APEX-10, Руководство по установке и эксплуатации, Страница: 59 / 75

Additional Information 59
Apex-10 / Apex-10H
Wire Rope Replacement Criteria
WA RNING
If any cable is found to be in need of replacement, the
entire cable set, pulleys and safety rollers, must be
replaced immediately. See Cable Condition Guide.
The Wire Rope MUST be Replaced if One or More of the Following
Criteria Are Met:
• More than six (6) randomly distributed broken wires in one rope lay or 6xd
length;
• More than three (3) broken wires in one strand in one rope lay or 6xd
length;
• Three (3) or more broken wires at rope terminations;
• One outer wire broken at the point or contact with the core of the rope
whish has worked its way out of the rope structure and protrudes or loops
out from the rope structure;
• Heavy rusting, corrosion, or pitting. A light surface corrosion on outer
wires is normal;
• Wear or scraping of one-third (1/3) of the original diameter of outside
individual wires;
• Excessive stretch. It is normal for new cable to require adjustment during
“break-in,” after which small periodic adjustments may be required.
However, if a cable that has been in service for 6 months should suddenly
require frequent adjustments or has used all the cable adjustments
available, all cables must be replaced immediately;
• Deformed strands, kinking, crushing, bird-caging, or any other damage or
distortion of wire rope structure;
• Variations in diameter (necking) or any change from normal appearance;
• Reductions from nominal diameter of more than 1/32” (for cables 3/8” to
1/2” diameter inclusive.);
• End attachments cracked, deformed or worn.
* Lay is the distance measured, parallel to the rope axis, in which a single strand makes one complete
turn around the rope axis, or the wires make a complete turn around the axis of the strand.
Please reference ANSI/ALI ALOIM standard for more information on
wire rope cable inspection.