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
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 pro-
tected. 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
