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10.Confirm the direction of bit rotation
(Fig. 7)
The bit rotates clockwise (viewed from
the rear side) by pushing the R-side of the
reversing switch lever.
The L-side of the lever is pushed to turn
the bit counterclockwise.
CAUTION
Never change the direction of bit rotation while operating. Turn the power switch OFF
before changing the direction of bit rotation: otherwise, burning of the motor will result.
Always use the hammer drill with clockwise rotation, when using it as an hammer drill.
11.IMPACT to ROTATION changeover
(Fig. 8)
The Hammer Drill can be switched from
IMPACT (impact plus rotation) to
ROTATION (rotation only) by rotating the
change lever (Fig. 1). When boring
concrete, stone, tile or similar materials,
sliding the change lever to IMPACT side.
The drill head impacts against the material
while continuing to rotate.
When boring metal, wood or plastic or
tightening, sliding the change lever to
ROTATION side. The drill rotates as an
ordinary electric drill.
CAUTION
Do not use the Hammer 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.
HOW TO USE
1. Speed adjustment and switch operation
The drill speed can be adjusted from 0 through full speed by regulating the trigger-
squeezing force. The more the trigger is squeezed, the faster the drill rotates. When the
trigger is squeezed fully, the speed is the maximum.
Turn the adjust knob clockwise for higher speed and coutnerclockwise for lower speed.
(Rotate the adjust knob approximately 2-2/3 turns.) (Fig. 9)
14
Counter-
clockwise
Fig. 7
Change lever
Fig. 8
Clockwise
ROTATION
ROTATION+IMPACT
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