Read the operating instructions for the charger for
further information about the charging procedure.
Li-ion batteries are ready for use at any time, even
when only partly charged. Charging progress is in-
dicated by the LED display (see charger operating
instructions).
6.3 Fitting the battery
CAUTION
Before fitting the battery, check that the power tool
is switched off and that the safety lock is engaged
(forward/reverse switch in the middle position). Use
only the Hilti batteries approved for use with this
power tool.
CAUTION
Check that the terminals on the battery and in the
power tool are free from foreign objects before
inserting the battery in the power tool.
1. Push the battery into the power tool from the rear
as far as it will go and until it is heard to engage
with a double click.
2. CAUTION A falling battery may present a risk of
injury to yourself or others.
Check that the battery is seated securely in the
power tool.
6.4 Removing the battery 2
1. Press the release button.
2. Pull the battery out of the power tool toward the
rear.
6.5 Belt hook 3
CAUTION
Check that the belt hook is fitted securely before
beginning work.
The belt hook allows the power tool to be attached to
a belt worn by the operator. The belt hook can also
be fitted to the other side of the power tool for use by
left-handed persons.
1. Pull the battery out of the tool.
2. Fit the mounting plate into the guides provided.
3. Secure the belt hook with the two screws.
7. Operation
CAUTION
The tool may get hot during use. Wear protective
gloves.
CAUTION
When drilling and screwdriving, the grip of the tool
may be deflected laterally (the tool tends to pivot
about its own axis).
CAUTION
To avoid injuries caused by the insert tool, wear
protective gloves when changing insert tools.
7.1 Setting forward or reverse rotation 4
NOTE
The forward / reverse switch is used to select the
direction of rotation of the drive spindle. An interlock
prevents switching while the motor is running. The
control switch is locked when the forward / reverse
switch is in the middle position. Push the forward /
reverse switch to the right (power tool held in working
direction) to select forward rotation. Push the forward
/ reverse switch to the left (power tool held in working
direction) to select reverse rotation.
7.2 Speed selection using the 2-speed gear
switch 5
NOTE
The mechanical 2-speed gear switch can be used to
select the speed range required. Speed with fully-
charged battery: 1st gear: 0ತ500 /min, 2nd gear:
0ತ1700 /min
7.3 Switching on / off
Speed of rotation can be controlled smoothly up
to maximum speed by pressing the control switch
slowly.
7.4 Fitting the drill bit
1. Set the forward / reverse switch to the middle
position or remove the battery from the power
tool.
2. Check that the connection end of the drill bit is
clean. Clean the connection end if necessary.
3. Insert the drill bit in the keyless chuck and then
turn the chuck firmly by hand until several clicks
are heard.
4. Check that the drill bit is held securely.
7.5 Removing the drill bit
1. Set the forward / reverse switch to the middle
position or remove the battery from the power
tool.
2. Open the keyless chuck.
3. Pull the insert tool out of the chuck.
7.6 Drilling
CAUTION
Use clamps or a vice to secure the workpiece. The
workpiece is thus held more securely than by hand
and both hands remain free to operate the power
tool.
1. Turn the torque and operating mode setting ring
to the drilling symbol.
2. Move the forward / reverse switch to the “For-
ward” position.
7.7 Screwdriving
7.7.1 Fitting the bit holder / bit
1. Set the forward / reverse switch to the middle
position or remove the battery from the power
tool.
2. Open the quick-release chuck.
3. Insert the bit adapter in the keyless chuck and
then turn the chuck firmly by hand until tight.
4. Check that the bit adapter is held securely (check
by pulling).
5. Fit the bit in the bit holder.
7.7.2 Screwdriving
1. Turn the torque, drilling and hammer drilling
setting ring to the required torque setting.
2. Set the forward / reverse switch to the desired
direction of rotation.
7.7.3 Removing the bit / bit holder
1. Set the forward / reverse switch to the middle
position or remove the battery from the power
tool.
2. Remove the bit from the bit holder.
3. Open the keyless chuck.
4. Remove the bit adapter.
7.8 Reading the charge status LED display on
Liತion batteries 67
NOTE
The charge status cannot be indicated while the power
tool is in operation. LED 1 blinks when the battery is
fully discharged or when it is too hot (temperature
above 80°C). The battery must then be inserted in the
charger.
CAUTION
If the battery gets too hot to touch, this may indicate
that it is faulty. Place the tool at a location where
there is no risk of causing a fire (at least 3 meters
away from flammable materials), where it can be
kept under observation and allowed to cool. Contact
Hilti Service after the battery has been allowed to
cool.
The Li-ion battery features a charge status LED dis-
play. The charge status is indicated by the LEDs on
the battery during charging (please refer to the oper-
ating instructions for the charger). When the battery
is not in use, pressing the battery release button or
inserting the battery into the power tool causes the
battery charge status to be displayed by the four LEDs
for three seconds.
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