Klein Tools Chicago Grips - Manual (Page 5)

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. individually, then the combined working safe load
will be 37,500 lbs.
In some transmission applications—commonly using the 1628-30, 1628-40 or 1628-50 series Chicago grips—there is a risk
of cable deformation under high tensions. To avoid the risk of cable deformation, Klein Tools recommends the use of two
grips in tandem if:
1. ACSR or AAC conductors—the load is expected to exceed the lesser of 12,500 lbs. or 40% of the conductor tensile strength
2. ACSS conductors—the load is expected to exceed the lesser of 10,000 lbs. or 40% of the conductor tensile strength
To use two Chicago grips in tandem, place each grip on the same conductor, approximately five feet apart. Connect a pulley
block (leveling block) to the eye of each grip. This will maintain equal distribution of the weight load between both grips.
Connect an anchored chain hoist of appropriate capacity to the block as shown in the image below.
Ratchet the chain hoist to the desired tension, as shown in the picture below.
Klein Chicago Grips
Klein Chicago Grips
Leveling Block
Leveling Block
Chain Hoist
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