INSTRUCTIONS FOR OPERATION
Installing or Removing Drill Bit
CAUTION:
Always be sure that the tool is switched
off and unplugged before installing or
removing drill bit.
To install the drill bit, loosen the drill
chuck and insert the drill bit in the chuck
as far as it will go. Tighten the chuck by
hand. Place the chuck key in each of the
three holes and tighten clockwise. Be
sure to tighten all three chuck holes evenly. (Fig. 1)
To remove the drill bit, turn the chuck key counterclockwise in just one hole, then
loosen the chuck by hand.
Switch Action
CAUTION:
Before plugging in the tool, always check
to see that the switch trigger actuates
properly and returns to the “OFF”
position when released.
To start the tool, simply pull the switch
trigger. Release the switch trigger to stop.
For continuous operation, pull the trigger
and then push in the lock button. To stop
the tool from the locked position, pull the trigger fully then release it. (Fig. 2)
A speed adjusting dial is provided so that maximum tool speed can be limited
(variable). Turn the speed adjusting dial in “+” direction for higher speed, and in “-”
direction for lower speed.
Reversing the Rotational Direction
Turn the reversing bar to “F”, the tool will
rotate clockwise, and turn the reversing bar
to “R”, the tool will rotate counterclockwise.
(Fig. 3)
IMPACT to ROTATION Changeover
The impact drill can be switched from
IMPACT (impact plus rotation) to
ROTATION (rotation only) by simply turning
the change ring. (Fig. 4)
When boring metal, wood or plastic
materials, turn the change ring fully
clockwise. The drill rotates as an ordinary
electric drill.
When boring concrete, granite, tile or similar
materials, turn the change ring fully counterclockwise. The drill head impacts against
the material while continuing to rotate.
CAUTION:
Do not use the impact drill in the IMPACT function if the material can be bored by
rotation only. Such action will not only reduce drill efficiency, but may also damage the
drill tip. When changing over, ensure that the change ring is turned as far as it will go.
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