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Porter Cable 643 Manual De Instrucciones página 13

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TO START AND STOP THE SAW
Make sure that the power circuit voltage is the same as that shown on the specification
plate on the saw, and that saw switch is "OFF". Connect the battery pack.
1.
Squeeze the trigger switch (A) Fig. 9
to start the motor. Release the trigger
to stop the motor.
2.
A lock-out button (B) Fig. 9 is
provided to prevent unintentional
starting. To lock the switch trigger
"OFF", push the button to the right.
To unlock the switch trigger, push
the button to the left.
VARIABLE SPEED
This saw is equipped with a variable speed control switch. The speed range is 0 to 2200
SPM. Adjust the speed by squeezing the switch trigger. The more the switch trigger is
squeezed, the higher the speed.
Use the higher speed for fast cutting when finish and accuracy are not critical. Use
the slower speed for accuracy and for delicate materials.
BLADE ORBIT
Vary the blade orbit by turning the indicator (A) Fig. 10 to any of four positions, "0"
through "3". The "0" position produces no orbit and "3" position produces the
maximum orbit. You can adjust the orbit with or without the motor running. Move the
indicator (A) Fig. 10 to the detent in the housing corresponding to the number on the
housing. The indicator in Fig. 8 is shown in position "3".
NOTE: Use the blade orbit setting "0" to
cut metal.
NOTE: Use of higher orbit settings when
performing intricate scroll cuts may
cause blade breakage. The lower orbit
settings are recommended for scrolling.
Orbit position "0" will produce the most
accurate cuts with less splintering and
the longest blade life.
CHIP BLOWER
This saw is equipped with a chip blower to keep the cutting area free of chips. Use the
switch (B) Fig. 8 to turn the chip blower on and off. The switch is shown in the "ON"
position. To turn the chip blower "OFF", turn the switch clockwise until it stops.
OPERATION
Fig. 9
A
13
B
3
2
1
0
B
Fig. 10
A

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