Using Klein Tools Chicago Grips in Common Overhead Applications
USING KLEIN TOOLS CHICAGO GRIPS IN COMMON OVERHEAD APPLICATIONS Materials Used: Klein Tools Chicago Grips, Klein Tools KN1500PEX web strap ratcheting hoist, Dillon Dynamometer, chain hoist, leveling block. Disclaimer: This is not intended to be a definitive instructional manual for completing the applications. Always consult company procedures and material guidelines before attempting any application. Dead-Ending a Conductor Cable 1. Set up the ratchet hoist and Chicago grip as shown in the image below.
Conductor Cable Sagging Using a Dynamometer 1. Set up ratchet hoist, Chicago Grip and dynamometer as shown in the image below. Klein Chicago Grip Klein KN1500PEX Hoist Dynamometer 2. Ratchet the hoist until the dynamometer displays the desired tension. Consult conductor specifications or company procedures to determine the appropriate tension. 3. When finished, break the tension using the hoist handle, then use either the handle or drum knob to continue releasing the tension.
Splicing Conductor Cables 1. Set up ratchet hoist and Chicago grips as shown in the image below. Klein KN1500PEX Hoist Klein Chicago Grip Klein Chicago Grip 2. Connect the KN1500PEX Web Strap Ratchet Hoist to each grip, and ratchet to the desired tension to make the splice. The cable can now be spliced according to standard work procedures and material guidelines. Klein KN1500PEX Hoist Klein Chicago Grip Klein Chicago Grip 3.
Using Two Chicago Grips in Tandem For applications where the maximum load exceeds the safe load of an individual grip, or the cable is at risk of deformation, it is recommended to use two Chicago grips in tandem. Using two grips in tandem divides the weight load between both grips, allowing for an effective work load increase of 1.5 times the safe load of each individual grip. For example, if using two Klein Tools 1628-40 Chicago grips, each with a maximum safe load of 25,000 lbs.
Additional Best Practices for ACSS Conductors 1. For ACSS conductors larger than 0.953” outside diameter (approximately 600MCM)- use the Klein Tools 1628-50 or 1628-40 series Chicago-style wire-pulling grips. The necessary grip size should be determined based on the cable outside diameter. For applications where the load is expected to exceed 12,500 lbs., use two of the appropriate grips in tandem to prevent cable deformation.
