14
If the SFB 126 battery is charged in the old SBC 12 H
charger, a loss of capacity must be expected with this
kind of charging. Full capacity of the battery will be
obtained with the C 7/24, C 7/36-ACS, SFC 7/18 and
TCU 7/36 chargers.
Speed selection
Two-speed switch
The speed can be selected using the mechanical two-
speed switch, i.e. 1
st
speed: 0–400 r.p.m. or 2
nd
speed:
0–1300 r.p.m. Only change speed when the drill dri-
ver is not running.
Torque selection
Torque clutch setting ring
The release torque (1–10 Nm) is obtained by turning
the setting ring to the desired torque level (setting 1–
15). At the drilling symbol (
), the torque clutch
is blocked and the drill driver gives its max. torque of
about 21 Nm (stalling torque) at this setting.
Reversing switch
The reversing switch is used to reverse the direction
of rotation of the chuck. A locking device prevents oper-
ation of the switch while the motor is running. The con-
trol switch
is deactivated when the reversing switch
is in the central position.
Speed control
Switch with electronic speed control
The speed can be controlled infinitely from zero to max-
imum by slowly depressing the switch.
6. Care and maintenance
Before cleaning, remove the battery from the tool in
order to prevent inadvertent starting.
Care of the tool
-CAUTION-
Keep the power tool, especially its grip surfaces,
clean and free from oil and grease. Do not use clean-
ing agents which contain silicone.
The outer casing of the tool is made from impactre-
sistant plastic. Sections of the grip are made from a
synthetic rubber material. Never operate the tool when
the ventilation slots are blocked. Clean the ventilation
slots carefully using a dry brush. Do not permit for-
eign objects to enter the interior of the tool. Clean the
outside of the tool at regular intervals with a slightly
damp cloth. Do not use a spray, steam pressure clean-
ing equipment or running water for cleaning. This may
negatively affect the electrical safety of the tool.
Take care of your insert tools. Clean off dirt and dust
deposits. Always keep the connection end clean and
lightly greased.
SFB 121 and SFB 126 batteries
Keep the contact surfaces free of dust and lubricants.
Clean them if necessary using a clean cloth. If the bat-
tery capacity drops below an acceptable level after a
short period of use, we recommend that it be diag-
nosed by Hilti.
Maintenance
Check all external parts of the tool for damage and
check that all controls operate faultlessly. Do not oper-
ate the tool if parts are damaged or if the controls do
not function faultlessly. If necessary, your electric tool
should be repaired at a Hilti service centre.
7. Accessories
Battery removal
Battery release button
If the battery has to be changed, press in the two release
buttons using two fingers and pull the battery out of
the drill driver.
Battery insertion
Push in the battery as far as it will go. There must be
an audible click.
Only the Hilti SFB121 or SFB126 batteries may be used.
Battery charging
Only the Hilti C 7/24, C 7/36-ACS, SFC 7/18, TCU 7/36
or SBC 12 H battery charger may be used. Please refer
to the charger operating instructions for the charging
process.
If the SFB 126 battery is charged in the old SBC 12 H
charger, a loss of capacity must be expected with this
kind of charging. Full capacity of the battery will be
obtained with the C 7/24, C 7/36-ACS, SFC 7/18 and
TCU 7/36 chargers.
SFB 121 or SFB 126 battery
Use only the SFB 121 or SFB 126 batteries.
Special insert tools program
Should you require insert tools not included in the stan-
dard program, please contact the Hilti customer ser-
vice department or your Hilti representative. Hilti offers
a comprehensive range of special insert tools in pro-
fessional quality.
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