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This machine is equipped with a single piston. When you work with the machine on shearing station
with max shearing and then change to punching station the overtravel may cause the holding nut (A) to
contact the scraper(B) and damage these components. (Figure - 1)
To avoid this, after working with the shearing tool you must make sure that its adjusted back to
working with punching tools.
Re-adjust the stroke so that when the punch goes down it does not contact the scraper. This means
that you must adjust the stroke as shown in Figure - 2 by leaving enough travel stroke (4 – 5 mm is sufficient)
Figure 3
If you will work with max stroke of the SHEAR only then you must adjust it to full stroke as
shown in Figure – 3. Remember that, at this adjustment if you work with the punch you will
damage the scraper and the tool holder
.
Figure 1
Figure 2
A
B
TRUE PUNCHING
