Makita DPP200 Manual De Instrucciones página 14

CAUTION:
Make sure the stepped edge of
the oblong punch is positioned correctly in the
punch rod and the punch retaining nut is properly
fastened.
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 to 8 mm thickness using a die
for thinner workpiece can cause the punch to jam in the
workpiece. This is due to the smaller clearance 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.
► Fig.10: 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.
► Fig.11: 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.
► Fig.12: 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.
► Fig.13: 1. Spring pin 2. Return lever 3. Open posi-
tion 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.
6. Continue to pull the switch trigger until the punch
reaches the end of its stroke and returns to the starting
position.
The punch rod will extend and push the punch through
the workpiece.
NOTE: To aid accurate and easy positioning of the
punch, pull the switch trigger intermittently to jog the
punch down to the workpiece. If the position is not
satisfactory, open the return lever to retract the punch
for another attempt. If the punch doesn't return to its
starting position with return lever open, pull the switch
trigger to return the punch.
NOTE: If the punch doesn't return after punching
finishes, release the switch trigger to stop the motor
and pull the switch trigger again.
If the punch doesn't return even after performing
above procedures, perform the procedures for stop-
ping the operation before the completion of punching
mentioned below.
Stopping the operation before the
punching is finished
If you want to stop the operation before the punching is
finished, perform the procedures below:
1. Turn the return lever counterclockwise until it hits
the spring pin and then immediately back to its starting
position.
Doing this releases the internal pressure of the tool. If
the punch retracts from the workpiece under its own
power, allow the punch to fully return. After that, turn the
return lever back to its starting position. In this case, the
following step is not necessary.
2. Continue to pull the switch trigger until the punch
returns to its starting position.
Using slide stopper for maximum
depth
Optional accessory
CAUTION:
Before attaching or removing the
slide stopper, ensure that the battery cartridge
is removed to prevent accidental operation and
personal injury.
Punching up to 40 mm depth from the edge of the work-
piece can be done using the optional slide stopper.
► Fig.14: 1. Bolt and washer 2. Optional slide stopper
1. Loosen the set bolt and nut to remove the die.
2. Remove the bolt and washer fixing the slide
stopper.
3. Remove the slide stopper by pulling it to the upper
side of the C frame.
4.
Insert the optional slide stopper for maximum
depth from the bottom side of the C frame.
5. Fix the optional slide stopper with the bolt and
washer removed in step 2.
6. Install the die with the set bolt and nut removed in
step 1.
14 ENGLISH