Step 2.
Select appropriate capacity and plate thickness. The model designation, ca-
pacity and plate thickness are stenciled on each clamp.
WARNING: Never exceed rated capacity or use on material whose thick-
ness is not within the range of jaw opening stenciled on clamp. Lift only
one plate on each lift.
Always use a clamp with maximum plate thickness and rated capacity near
equal to the thickness and weight of the plate being lifted.
Step 3.
Inspect clamp before each lift.
WARNING: Do not use if in need of repair.
If in doubt, refer to Maintenance Section for detailed maintenance instructions
and exploded view of the clamp for part identification.
A. Check the clamp to be certain the Identification and warning
tags are present and legible.
B. Do not use the clamp if the tags are missing or illegible
C. Inspect gripping surfaces for wear and defects. Gripping surfaces must
be sharp and free of foreign matter. Screw cup mounted in screw should
turn freely.
D. Screw should turn freely. Inspect for wear and damage.
E. Spring must hold cam jaw in “Centered” position parallel to the screw.
WARNING: Do not use clamp unless spring is in place and is holding
the cam jaw parallel to length of screw.
D. Inspect condition of body for wear and damage, particularly on the inside
of jaw opening.
E. Inspect condition of lifting shackle and pins for wear and damage.
F. Remove any clamp from service in need of repair.
Step 4.
The clamp is a component of the rigging used in the lifting or transporting of
members. It is important to use safe and adequate rigging.
WARNING: Improper or excessively heavy rigging may interfere with
the operation of the clamp and its ability to maintain proper positions on
the member. Never attach crane hook directly to the clamp - always
use a flexible sling between crane hook and clamp.
Step 5.
Position clamp on the plate to be lifted. Do not allow inside of jaw opening to
rest on plate to be lifted. Maintain 1/4” clearance. Refer to Illustration A.
