12 ENGLISH
OPERATION
Correct use of the tool
Die selection
It is important that the die to be used is correct for the
thickness of the workpiece to be punched. Punching the
workpiece of 4 mm (5/32″) to 8 mm (5/16″) thickness
using a die for thinner workpiece can cause the punch
to jam in the workpiece. This is due to the smaller clear
-
ance between the die and punch. In such a case, the
workpiece will be pulled up by the retracting punch as
shown in the figure. Special care should be taken when
punching flat bar of mild steel, aluminum and copper.
1
►
1.
Workpiece
Correct use of the stripper
Do not position the workpiece with one end or both
ends unsupported by the stripper. If the workpiece is not
properly supported, it will move when the punch returns.
It may cause the punch to jam and damaging the tool.
1
2
►
1.
Stripper
2.
Workpiece
Punching a hole
CAUTION:
Before punching, always make
sure that the proper punch and die are installed
correctly.
1.
Check the position for punching.
1
2
3
1
►
1.
Punch
2.
Flat bar
3.
Die
2.
Loosen the cap screw on the slide stopper and
adjust the slide stopper to the desired position. After
that, retighten the cap screw.
NOTE:
The slide stopper is set to hold the hole
puncher at a constant distance from the edge of the
work piece.
3.
Check that the return lever is fully closed in the
clockwise direction.
1
2
3
4
►
1.
Spring pin
2.
Return lever
3.
Open position
4.
Closed position
4.
Check that the punch piston is fully retracted.
5.
Place the puncher in the required position on the
workpiece using the slide stopper as a guide. Align the
point of the punch with the center mark of the hole to be
punched.
Summary of Contents for XPP01
Page 35: ...35 ...