Hilti SF 2-A Mode D'emploi page 43

middle position. Push the forward / reverse switch to the left (when the
power tool is held in the working direction) to select forward rotation. Push
the forward / reverse switch to the right (when the power tool is held in the
working direction) to select reverse rotation.
7.2 Selecting the speed range
WARNING
en
Large and heavy insert tools must only be operated in first gear. There
is otherwise a risk that the tool will be damaged when it is switched off or,
under unfavorable conditions, the chuck might be detached.
NOTE
The gear selector switch can be used to select the speed range. Speed range
for the SF 2-A/SFD 2-A with a fully charged battery: 1st gear: 0­400/min,
2nd gear: 0­1500/min.
NOTE
The gear selector switch can be operated only when the motor is at a
standstill.
7.3 Switching on / off
Speed of rotation can be increased smoothly up to maximum speed by
pressing the control switch slowly.
7.4 Changing sockets
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.
connection end if necessary.
7.4.1 Changing bits with the SF 2-A
NOTE
The power tool is equipped with a keyless chuck that accepts various
accessories such as drill bits, screwdriving bits and bit holders.
7.4.1.1 Fitting the insert tool
1. Set the forward / reverse switch to the middle position or remove the
battery from the power tool.
2. Open the keyless chuck.
3. Insert the drill bit in the chuck and then turn the keyless chuck sleeve
until tight.
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Printed: 24.03.2014 | Doc-Nr: PUB / 5174884 / 000 / 00
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5
Clean the