909 CD24 series Gebrauchsanweisung - Seite 15

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Using the drill

Trigger switch
Use the forward/reverse switch
(4) to select the direction of
rotation, then pull the trigger
(3). This trigger switch is an
electronic variable speed control
which enables the user to
vary the speed continuously.
The speed varies according
to how far the trigger switch is
depressed. The further it is depressed the faster the chuck
will rotate and the lighter it is depressed, the slower it will
rotate.
To stop the drill, release the trigger switch.
Note.
The variable Speed control fitted to this drill is NOT
intended to be used for long periods of time during the
operation of the task being performed. Use the variable
speed to start drilling and screwing tasks, and then fully
depress the trigger once the task has started.
CAUTION.
Extended use of the variable speed under load will
overload and then permanently damage the speed control.
Adjustable torque
This drill is equipped with 22
torque settings, one drill setting
plus another for hammer drilling
(on hammer drill models) which
are controlled by the torque collar
(2). All of the torque settings are
clearly identified on the torque
collar. To adjust the torque
setting, rotate the torque collar.
Rotate the torque collar to a higher number to increase the
torque setting and rotate it to a lower number to decrease
the torque setting.
Controlling the torque allows for better control when using
the drill on specific tasks and prevents over-fastening and
over-tightening.
For drilling, always use the Drill position by aligning the Drill
symbol with the triangular indicator on the front face of the
drill near the torque collar.
For setting the torque position, select a low setting on
the torque collar and align the selected symbol with the
triangular indicator on the top of the drill. Increase gradually
to set the correct torque. It is better to use a scrap piece of
material if possible to set the torque.
Forward/reverse switch
Note.
You can only change
the direction of rotation of the
drill using the forward/reverse
switch when the trigger is NOT
depressed.
This switch (4) will allow you to
change the direction of the motor
while the trigger switch is not
depressed.
Drilling uses the forward mode. The reverse mode is
intended for the removal of screws and assisting to remove
jammed drill bits.
Hammer drilling (hammer drilling models only)
The hammer drilling selection is designed for small and
occasssional hammer drilling. For continuous hammer
drilling, or for drilling larger diameter holes in concrete etc,
it is recommended to use a pneumatic type hammer drill
specifically designed for this application.
To select the hammer drill position, rotate the torque collar
around past the drill symbol and align the hammer symbol
with the indicator on the top of the drill.
This will allow the drill to hammer during rotation of the
chuck when pressure is applied.
When hammer drilling it is also recommended to fit the side
auxiliary handle to either the left or right hand side of the
drill.
When fitting the drill bit, ensure to use a masonry drill bit or
a drill bit specifically designed for the material being drilled.
Always try and fully insert the drill bit into the chuck.
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