The Eastwood Pneumatic Shrinker/Stretcher
was designed and fabricated to allow both
hands to be free during operation. This tool is
useful for many tasks including rough panel
shaping before using the Eastwood English
This Pneumatic Shrinker/Stretcher comes in
two boxes: one containing the Shrinker dies
(if you purchased the complete kit) and the
other box containing the main tool holder.
Shown at left is the Shrinker/Stretcher mounted
on Eastwood stand #11666 (sold separately).
PLEASE OBSERVE THE FOLLOWING SAFETY PRECAUTIONS:
- Always wear eye protection when operating the Pneumatic
Shrinker/Stretcher. Adequate eye protection is necessary because
oils, grease, and metal particles can be projected at high velocity
while the tool is in operation.
- Make sure that the tool is mounted securely and keep hands and
fingers away from the moving parts. Air pressure exerts great
pressure which will quickly crush fingers.
- Wear gloves while operating this tool to avoid cuts on sharp metal.
- Do not leave the Pneumatic Shrinker/Stretcher unattended while
attached to an air supply.
- Disconnect air supply hose after use.
The air cylinder may leak air around the o-ring
slightly as it is designed as a loose fit piston
and should have a few drops of air tool oil
added to the airline each time it is used in
order to lubricate the cylinder.
- The first part of the setup is to lower the
main unit onto the tool stand tube (use the
grinder stand without the top plate) and
tighten the top two steel 1/4”- 20 hex head
bolts. (Do not over tighten the bolts or this
will bend the tool stand tube).
- Next, attach the airline to the lower cylinder
using Tefl on® tape on the threads.
Now attach the foot actuator to the other
end of the hose and use quick disconnects
of your choice (not included) to connect to
- The Shrinker/Stretcher dies can then be
slipped in and the two retaining screws and
nuts can be tightened down to hold the
dies in place.
- AIR MUST BE REGULATED TO NO MORE THAN 90 PSI or damage to the unit can occur.
WARNING: Eastwood is not
responsible for damage resulting from operating at a higher than
recommended pressure (90 PSI MAX).
- Depress pedal once for each desired bend and release quickly.
Repeat passes over the same area to gradually increase curvature.
WARNING: Do not hold pedal down as air pressure will continue to
build and damage to the unit can occur.
- Lubricate moving parts periodically with light machine oil to prevent
binding and add several drops of air tool oil to the cylinder inlet after
The mechanism is pre-adjusted from
the factory but if an adjustment of
the dies is needed such as increasing
or decreasing the gap between
the jaws, this can be accomplished
by following these directions.
Be very careful as you can pinch
your fingers if not done correctly.
Always wear proper eye and hand
- First remove the Shrinker/Stretcher
jaws and then the cotter pin as
well as the clevis pin. Now tilt the
control arms out of the way and connect the tool to a source of air.
Keep your hand free as you hit the pedal, which will push the piston
and clevis upward. While holding the pedal depressed turn the clevis
clockwise to loosen it and counter clockwise to tighten it. Turn the
clevis one turn at a time and recheck the clearance at the tool after
you reassemble the tool. Turning clockwise will close the gap on both
jaws while turning the clevis counter clockwise will open the gap on
- Remember not to get your fingers caught in between the clevis and
the frame while making the adjustments.