Step 6.
Tighten screw making certain that both gripping surfaces are parallel
to the surface of the member being lifted and are not partially on and
off the edge of the member. Refer to Illustration C. Using handle pro-
vided, tighten the screw by applying 40 pounds of force. Do not over
tighten. For applications where the member is repeatedly lifted, repo-
sitioned, or tension in the lifting force relaxed, always recheck torque
on the adjusting screw and
