Step 6.
Tighten screw making certain both gripping surfaces are parallel to the sur-
face of the member being lifted and are not partially on and off the edge of the
plate. Refer to Illustration A, Step 5 and Illustration B.
Using a bar, tighten screw hand tight, then an additional 1/4 turn. Do
not over tighten. Refer to Photograph G and Chart H.
WARNING: Apply required torque on screw, do not over-tighten.
CHART H
Required Torque On Screw For Model “SCP/A/SP” Clamps
Operator Operator Operator
Capacity Operator Force Force In Force In Force In
In In Pounds With Pounds with Pounds With Pounds With
Tons Attached Handle 12” Lever 18” Lever 24” Lever .
1/2 40 21 14 -
1 1/2 40 26 18 -
3 50 34 23 -
6 - 78 52 -
8 - - 83 64
10 - - - 85
15 - - - 144
20 201 151
