S421old_warn.
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WEDGE SOCKET
WARNING AND APPLICATION
INSTRUCTIONS WARNING
• Loads may slip or fall if the Wedge Socket is not
properly installed.
• A falling load can seriously injure or kill.
• Read and understand these instructions before
installing the Wedge Socket.
• Do not side load the Wedge Socket.
• Do not interchange Crosby wedge socket, wedge or
pin with non Crosby Wedge socket, wedge or pin.
• Apply first load to fully seat the Wedge and Wire Rope
in the socket. This load should be of equal or greater
weight than loads expected in use.
• Do not interchange wedge between S-421 and US-422
S-421 or between sizes.
US-422
Important Safety Information -
Read and Follow
Inspection/Maintenance Safety
• Always inspect socket, wedge and pin before using.
• Do not use part showing cracks.
• Do not modified or substitute parts.
Tail
• Repair minor nicks or gouges to socket or pin by lightly Length*
grinding until surface are smooth. Do not reduce original
dimension more than 10%. Do not repair by welding.
• Inspect permanent assemblies annually, or more often in
severe operating conditions.
• Do not mix and match wedges or pins between models or
sizes.
• Always select the wedge and socket for the wire rope size. RIGHT WRONG WRONG
Assembly Safety *Tail Length
Standard 6 to 8 strand wire rope
• Use only with standard 6 to 8 strand wire rope of desig- A minimum of 6 rope diameters, but not less than 6”.
nated size. For intermediate size rope, use next larger size (i.e. - For 1” rope: Tail Length = 1” x 6 = 6”
socket. For example: When using 9/16” diameter wire rope
Rotation Resistant Wire Rope
use a 5/8” size Wedge Socket Assembly. Welding of the A minimum of 20 rope diameters, but not less than 6”)
tail on standard wire rope is not recommended. The tail (i.e. - For 1” rope: Tail Length = 1” x 20 = 20”)
length of the dead end should be a minimum of 6 rope
diameters but not less than 6”.
• Align live end of rope, with center line of pin.
(See Figure 1)
• Secure dead end section of rope. (See Figure 1)
• DO NOT ATTACH DEAD END TO LIVE END. Operating Safety
(See Figure 2)
• Apply first load to fully seat the Wedge and Wire Rope in
• Use a hammer to seat Wedge and Rope as deep into the socket. This load should be of equal or greater weight
socket as possible before applying first load. than loads expected in use.
• To use with Rotation Resistant wire rope (special wire • Efficiency rating of the Wedge Socket termination is based
rope constructions with 8 or more outer strands) ensure upon the catalog breaking strength of Wire Rope. The effi-
that the dead end is welded, brazed or sized before insert- ciency of properly assembled Wedge Socket is 80%.
ing the wire rope into wedge socket to prevent core slip-
page or loss of rope lay.The tail length of the dead end • During use, do not strike the dead end section with any
should be a minimum of 20 rope diameters but not less other elements of the rigging (Called two-blocking).
than 6”. (Figure 1)
Copyright © 2008 The Crosby Group, Inc. 53
All Rights Reserved
