selected by operating the forward / reverse push switch.
An interlock prevents operation of the switch while the
motor is running. When in the middle position, the on /
off switch is locked.
– Push the forward / reverse switch to the right (tool in
the working position) = reverse.
– Push the forward / reverse switch to the left (tool in
the working position) = forwards.
7.2 Setting the speed
(2-speed gear selector switch)
-CAUTION-
Operate the gear selector switch only when rotation has
stopped.
Select position 1 for a speed range of 0–460 r.p.m. or
position 2 for a speed range of 0–1600 r.p.m.
7.3 Screwdriving
Set the desired direction of rotation by way of the for-
ward / reverse switch.
7.3.1 Torque setting
Set the torque by turning the torque clutch setting ring
to the desired torque setting (1–13).
7.4 Hammer drilling
Turn the torque clutch setting ring to the hammer drilling
symbol.
-CAUTION-
Take care to avoid pinching the fingers between the chuck
and the setting ring.
7.5 Drilling
Turn the torque clutch setting ring to the drilling symbol.
-CAUTION-
A high torque is experienced if the insert tool sticks while
drilling with large-diameter drill bits and hole saws.
Accordingly, use the side handle and hold the tool with
both hands (one hand on the grip and one hand on the
side handle).
7.6 Switching on and off
Should a sticking drill bit cause the motor to stall for
longer than 2–3 seconds, the tool must be switched off
in order to avoid damage to it.
1. Use the forward / reverse switch to select the direc-
tion of rotation.
2. The speed of the tool can be controlled smoothly
between zero and maximum by pressing the on / off
switch slowly.
7.7 Removing the battery (2-finger operation)
1. Press in both release buttons.
2. Pull the battery downwards out of the tool.
7.8 Fitting the battery
Use only Hilti SFB 180 or SFB 185 batteries.
Push the battery into the tool from below until it is heard
to engage.
13
6. Before use
1. It is essential that the safety precautions printed in
these operating instructions are read and observed.
2. A new battery must be charged correctly for the first
time before use:
– charged normally for 24 hours with the SFC 7/18 H
charger, or
– charged for 12 hours using the conditioning func-
tion of the C 7/24, C 7/36-ACS, SFC 7/18 or TCU 7/36
charger
This will ensure that the cells form correctly. Incorrect
initial charging may have a permanent, negative effect
on battery capacity.
-NOTE-
– The tool may be used only with SFB 180 or SFB 185
batteries.
– Battery performance drops at low temperatures.
– Batteries should be stored at room temperature.
– Never store batteries where they are exposed to the
heat of the sun, on a radiator, behind a motor vehicle
windscreen or at a window.
– Never use the battery until the cells become fully dis-
charged. Change to the second battery as soon as a
drop in performance is noticed and recharge the bat-
tery immediately so that it is ready for re-use.
– Use bits with a standard
1
/
4
″
hex. shank.
6.1 Fitting the side handle
1. Open the side handle clamping band by turning the
handle.
2. Slide the side handle clamping band over the chuck
and onto the tool.
3. Pivot the side handle into the desired position.
4. Secure the side handle by turning the handle.
7. Operation
-CAUTION-
Noise is emitted by the tool and the screwdriving / drilling
/ hammer drilling procedure. Excessive noise may dam-
age the hearing. Wear ear protection.
-CAUTION-
The screwdriving procedure may cause the material to
splinter. Splintering material may cause injury to the body,
respiratory passages and the eyes. Wear eye protection,
breathing protection and a safety helmet.
7.1 Setting forwards or reverse rotation
The direction of rotation of the driving spindle can be
Printed: 07.07.2013 | Doc-Nr: PUB / 5070671 / 000 / 00
