Operation - Hilti SFC 14-A Manual De Instrucciones

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: 0 500 /min, 2nd gear:
0 1700 /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.
Printed: 07.07.2013 | Doc-Nr: PUB / 5070682 / 000 / 00
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.
en
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