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OPERATION
1. Connect an air supply with 80-120psi (5.5-8.2bar). This will fully open the gap between the
jaws.
2. Install the jaws for either shrinking or stretching as desired.
3. Use the hand wheel to set the gap between the upper and lower jaws to allow the material to
move easily between them when the jaws are fully open.
4. Practice with the material and place the foot pedal in a location which is comfortable for
work. (A comfortable location will allow the operator to be balanced and in control of the
material at all times.)
5. Start the hydraulics and begin to form the material by pressing on the foot pedal. The foot
pedal may held for a full cycle or be released at any time. When the pedal is released, the air
pressure will retract the ram lift and open the jaws. PRACTICE.
Operating Tips
The function of this tool is to shrink or stretch sheet metal up to 14ga. (1.9mm).
The principal operation is made when the sheet work piece is placed between the jaws and then
applying and releasing force with the foot on and off of the foot pedal. The work piece is moved
as required each time the foot pedal is released. By moving smoothly you will be able to make
smooth shapes quickly and easily. PRACTICE.
Do a quick test by stepping on the foot pedal and ensuring that the jaws bite down and pull apart
for the stretcher. For the shrinker the jaws should bite down and squeeze together. The jaws
should return to their open relaxed position between strokes and when the foot pedal is
released.
WARNING:
DO NOT step on the foot pedal without having work material
between the jaws. The jaws may chip or break causing injury from flying objects.
CAUTION:
Always wear proper eye protection with side shields, safety
footwear, and leather gloves to protect from burrs and sharp edges.
Keep hands and fingers clear of the dies.
When handling large heavy sheets make sure they are properly supported.
