TM 9-243
TYPES AND USES
C-CLAMPS
HAND SCREW CLAMPS
C-clamps are used to hold work which cannot be held
in a vise, or which has to be held for extended
periods of time. They are available in a variety of
sizes.
The hand screw clamp is made up of two hardwood or high
impact plastic jaws (1) and two hand-operated screws (2)
which hold the clamp together. The hand screw clamp is
used for holding wood while gluing. They are available in a
variety of sizes.
USING A C-CLAMP
1
Select a clamp which has an opening about 1-1/2
to 2 inches wider than the material to be clamped.
Glass and highly polished surfaces must be
protected. Use brass shims or wooden blocks.
Open clamp as wide as it will go.
2
Align work and protective blocks if required.
Place clamp (1) in position, and tighten operating
screw (2) until contact is made with material being
clamped.
3
Check alignment of material being clamped.
Check that the clamp is applying even pressure
over entire surface.
CAUTION
Do not use wrenches or bars to
tighten clamps.
4
Tighten clamp against surface.
19-2
