7.2.1 Quick-release chuck
-NOTE-
Unplug the supply cord from the mains socket.
Opening the quick-release chuck
1. Grip the chuck sleeve securely.
2. Turn the red ring toward "UNLOCK".
3. Open the quick-release chuck by turning the sleeve
until the insert tool can be fitted.
Opening the quick-release chuck when tightened
excessively
1. Grip the retaining ring by hand or use a pin to hold
it securely (alternatively, use a 17 mm AF open-end
wrench to hold the retaining ring securely)
6
en
7. Operation
2. Turn the red ring toward "UNLOCK".
3. Open the quick-release chuck by turning the sleeve.
Closing the quick-release chuck
1. Fit the insert tool into the chuck.
2. Tighten the chuck by turning the chuck sleeve firmly.
3. Turn the red ring toward "LOCK" (in this position, the
chuck is self-tightening)
-NOTE-
The chuck cannot open inadvertently while the tool is
running in reverse rotation.
7.2.2 Key-type chuck
-NOTE-
Use the chuck key supplied for opening and closing
the chuck.
Unplug the supply cord from the mains socket.
Opening the key-type chuck
1. Insert the chuck key in one of the three holes pro-
vided on the chuck.
2. To open the chuck, turn the key counterclockwise.
3. Remove the insert tool from the chuck.
4. Remove the chuck key.
Closing the key-type chuck
1. Open the chuck sufficiently to allow the shank of the
insert tool to be inserted.
2. Fit the insert tool into the chuck.
3. Close the jaws of the chuck by turning the toothed
ring until the jaws grip the insert tool.
4. Insert the chuck key in one of the three holes pro-
vided on the chuck.
5. Secure the insert tool in the chuck by turning the
chuck key clockwise.
6. Remove the chuck key.
7.2.3 2-speed gear selector switch
-NOTE-
Change gear only when rotation has stopped.
The mechanical 2-speed gear selector switch can be
used to set the desired speed range:
1
st
gear = 0–750 r.p.m.
2
nd
gear = 0–1900 r.p.m.
7.2.4 On/off switch with electronic speed control
The speed can be controlled by pressing the on/off
switch gradually until maximum speed is reached.
7.2.5 Lockbutton for sustained operation
The lockbutton is used to lock the on/off switch in the
"on" position: the motor then runs constantly (sustained
operating mode).
Activating sustained operating mode
1. Press the on/off switch and hold it in this position.
2. Press the lockbutton and hold it in this position.
The mains voltage must correspond to the informa-
tion printed on the rating plate on the tool.
Never use the tool without the side handle.
Use a vice or clamp to secure loose workpieces.
7.1 Preparing the tool for use
7.1.1 Adjusting the depth gauge
1. Release the side handle clamping mechanism by
turning the handle in a counter-clockwise direction.
2. Pivot the side handle into the desired position.
3. Adjust the depth gauge to the desired drilling depth.
4. Tighten the side handle securely by turning the han-
dle in a clockwise direction.
7.2 Operation
-CAUTION-
●
Drilling may cause splintering of
the material.
●
Splinters may cause injury to
parts of the body and eyes.
●
Wear eye protection, protective gloves
and breathing protection if no dust
removal system is used.
-CAUTION-
●
The tool and the drilling operation
emit noise.
●
Excessive noise may damage the
hearing.
●
Wear ear protection.
Printed: 07.07.2013 | Doc-Nr: PUB / 5070702 / 000 / 00
