Operation - Hilti SID 121-A Mode D'emploi

dicated by the LED display (see charger operating
instructions).
6.1.4 Fitting the battery to the power tool
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.

7. Operation

7.1 Changing insert tools
CAUTION
Wear protective gloves when changing insert tools
as the insert tools get hot during use.
Check that the connection end of the insert tool is
clean. Clean the connection end if necessary.
7.1.1 Changing insert tools with the SID 121-A
and SID 144-A 3
NOTE
The power tool is equipped with a / " hex. socket
chuck with locking ring.
7.1.1.1 Fitting the screwdriving bit
1. Set the forward / reverse switch to the middle
position or remove the battery from the power
tool.
2. Pull the locking ring on the chuck forward and
hold it in this position.
3. Push the screwdriving bit into the chuck as far
as it will go and then release the locking ring.
7.1.1.2 Removing the screwdriving bit
1. Set the forward / reverse switch to the middle
position or remove the battery from the power
tool.
2. Pull the locking ring on the chuck forward and
hold it in this position.
3. Pull the screwdriving bit out of the chuck and
then release the locking ring.
7.1.2 Changing insert tools with the SIW 121-A
and SIW 144-A 4
NOTE
The power tool is equipped with a / " square drive
with locking pin.
Printed: 07.07.2013 | Doc-Nr: PUB / 5070691 / 000 / 00
1. Push the battery into the power tool from below
until it is heard to engage with a 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.
6.1.5 Removing the battery 2
1. Press both battery release buttons.
2. Pull the battery downwards out of the power tool.
7.1.2.1 Fitting the nut driver
1. Set the forward / reverse switch to the middle
position or remove the battery from the power
tool.
2. Align the hole in the side of the nut driver with
the locking pin in the chuck.
3. Push the nut driver onto the chuck until it en-
gages.
7.1.2.2 Removing the nut driver (hex. socket)
1. Set the forward / reverse switch to the middle
position or remove the battery from the power
tool.
2. Push in the locking pin in the chuck through the
hole in the side of the nut driver (hex. socket).
3. Pull the nut driver (hex. socket) away from the
chuck.
7.2 Setting forward or reverse rotation 5
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. In the
middle position, the control switch is locked but the
screwdriver's LED working light can be switched on.
Push the forward / reverse switch to the right (as
seen in the working direction) for forward rotation.
Push the forward / reverse switch to the left (as seen
in the working direction) for reverse rotation.
NOTE
The power tool's working light is no substitute for
good general illumination of the working area.
en
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