Speed Selection; Switching On/Off - Hilti SF 151-A Mode D'emploi

7.2 Speed selection

7.2.1 Speed selection using the 2-speed switch
(SF 151-A) 4
NOTE
The mechanical 2-speed gear switch can be used to
en
select the speed range required. Speeds with fully-
charged battery: 1st gear: 0-390 r.p.m. or 2nd gear:
0 1455 r.p.m.
7.2.2 Speed selection using the 3-speed switch
(SFH 151-A) 5
NOTE
The mechanical 3-speed gear switch can be used to
select the speed range required. Speeds with fully-
charged battery: 1st gear: 0-370 r.p.m., 2nd gear:
0-1380 r.p.m., 3rd gear: 0 2000 r.p.m.
7.3 Switching on / off
CAUTION
To avoid damage to the power tool, the switch must
be released (switched off) if the motor is stalled for
more than 2-3 seconds. After stalling, the power
tool must be allowed to run for 2 minutes under no
load.
The speed of the power tool can be controlled
smoothly (increased from zero to maximum) by
pressing the control switch gradually.
7.4 Drilling
CAUTION
In the event of the drill bit sticking, the power tool
will pivot about its own axis. Always use the power
tool with the side handle fitted and hold it securely
with both hands.
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.
7.4.1 Adjusting the side handle 6
1. Release the side handle clamping band by turning
the handle counterclockwise.
2. Pivot the side handle into the desired position.
3. Tighten the side handle by turning the grip clock-
wise.
8
Printed: 07.07.2013 | Doc-Nr: PUB / 5070660 / 000 / 00
7.4.2 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 chuck and then turn the
chuck sleeve until tight.
4. Check that the drill bit is held securely (check by
pulling).
7.4.3 Drilling
1. Move the forward / reverse switch to the "For-
ward" position.
2. Turn the torque and operating mode setting ring
to the drilling symbol.
7.4.4 Removing the drill bit
CAUTION
Wear protective gloves when changing insert tools
as the insert tools get hot during use.
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. Pull the insert tool out of the chuck.
7.5 Hammer drilling (SFH 151-A)
7.5.1 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 chuck and then turn the
chuck sleeve until tight.
4. Check that the drill bit is held securely (check by
pulling).
7.5.2 Hammer drilling
CAUTION
Use the side handle. Hold the power tool securely
with both hands, one hand on the grip and the other
on the side handle.
1. Move the forward / reverse switch to the "For-
ward" position.