Eastwood Pneumatic Shrinker/Stretcher
Part #28353
Eastwood Pneumatic Shrinker Stretcher
Introduction

Eastwood Pneumatic Shrinker Stretcher Stand 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 Wheel/Planishing Hammer. 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.

Assembly

  1. 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).
  2. Next, attach the airline to the lower cylinder using Tefl on® tape on the threads.
  3. Now attach the foot actuator to the other end of the hose and use quick disconnects of your choice (not included) to connect to air supply.
  4. 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.
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.

Operation

  1. 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).
  2. 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.
  3. Lubricate moving parts periodically with light machine oil to prevent binding and add several drops of air tool oil to the cylinder inlet after each use.

Adjustments
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 protection.

  1. 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 both jaws.
  2. Remember not to get your fingers caught in between the clevis and the frame while making the adjustments.