Porter Cable PC70THD Manuel D'instructions page 7

Selecting the direction of rotation
For drilling and for tightening screws, use forward (clockwise) rotation. For loosening
screws or removing a jammed drill bit, use reverse (counterclockwise) rotation.
Note: The direction of rotation is also depicted by an arrow on the forward/reverse slider (3).
Never change the direction of rotation while the motor is running.
• To select forward rotation, push the forward/reverse slider (3) to the left (when viewed
from the chuck end).
• To select reverse rotation, push the forward/reverse slider (3) to the right (when viewed
from the chuck end).
Two-gear selector (figure f)
• For drilling in steel and for fastening
applications, turn the two-gear selector (4)
so that the arrow points to position 1 (1st
gear). Also when using larger diameter
bits in wood turn the two gear selector into
position 1.
• For drilling in materials other than steel
and when using smaller diameter bits, turn
the two-gear selector (4) so that the arrow
points to position 2 (2nd gear).
Setting the drilling depth
• Slacken the side handle (9) by turning the grip counterclockwise.
• Set the depth stop rod (8) to the desired position. The maximum drilling depth is equal
to the distance between the tip of the drill bit and the front end of the depth stop rod.
• Tighten the side handle by turning the grip clockwise. Make sure that the side handle is
secure and does not slip.
Switching on and off
• To switch the tool on, press the variable speed switch (1). The tool speed depends on
how far you press the switch.
• For continuous operation, press the lock-on button (2) and release the variable speed
switch. This option is available only at full speed.
• To switch the tool off, release the variable speed switch. To switch the tool off when in
continuous operation, press the variable speed switch once more and release it.
WARNING:
press stand or other means; NOT BY HAND! Never unplug the tool with the locking
feature engaged. To do so will cause the tool to start immediately the next time it is
plugged in.
Drilling
• Always unplug the drill when attaching or removing accessories. When attaching
accessories in the drill chuck, it is important to securely tighten the chuck using all
three holes to prevent slippage. When using a keyless chuck, hand tighten firmly.
• Use sharp drill bits only.
• Support and secure work properly, as instructed in the Safety Instructions.
• Use appropriate and required safety equipment, as instructed in the safety instructions.
• Secure and maintain work area, as instructed in the safety instructions.
• Run the drill very slowly, using light pressure, until the hole is started enough to keep
the drill bit from slipping out of it.
• Apply pressure in a straight line with the bit. Use enough pressure to keep the bit biting
but not so much as to stall the motor or deflect the bit.
• Hold the drill firmly with both hands to control its twisting action. One hand
should be placed on the side handle.
• Drills equipped with a side handle must use the side handle.
• DO NOT CLICK THE TRIGGER OF A STALLED DRILL OFF AND ON IN AN
ATTEMPT TO START IT. DAMAGE TO THE DRILL CAN RESULT.
• Minimize stalling on breakthrough by reducing pressure and slowly drilling through the
last part of the hole.
The drill should only be locked ON when it is held stationary in a drill
f
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