Loading ...
Loading ...
Loading ...
Page 12
OPERATION
2. Position the direction-of-rotation
selector to the left of the tool for forward
rotation.
3. Setting the direction-of-rotation selector
in the OFF (center-lock) position helps
reduce the possibility of accidental
starting when not in use.
NOTICE: To prevent gear damage, always
allow the hammer drill to come to a com-
plete stop before changing the direction of
rotation.
NOTICE: The hammer drill will not run un-
less the direction-of-rotation selector is
engaged fully to the left or right.
TWO-SPEED GEARBOX
(FIG. 8)
FIG. 8
The hammer drill has a two-speed gearbox
for drilling or driving at either low or high
speeds. A slide switch is located on the top
of the hammer drill to select either low or
high speed. The required speed is adjusted
depending on the material and the working
conditions.
Use low speed for high power and torque
applications and high speed for fast drilling
or driving applications.
When using hammer drill in the low speed
range, the speed will decrease and the
hammer drill will have more power and
torque. Use low speed for starting holes
without a center punch, drilling metals or
plastic, drilling ceramics, or in applications
requiring a higher torque.
High speed is better for drilling wood and
wood composites.
NOTICE: Avoid running the hammer drill at
high speed for extended periods of time.
Running at high speed under constant us-
age may cause the hammer drill to become
overheated.
NOTICE: Make sure that the two-speed
gearbox switch is fully adjusted at the front
or the back position.
CAUTION:
Never adjust the speed
while the tool is running. Failure to obey
this caution could result in serious damage
to the hammer drill.
Low
High
Loading ...
Loading ...
Loading ...