Before Use; Operation - Hilti SFH144-A Mode D'emploi

6 Before use

6.1 Battery use and care
NOTE
Battery performance drops at low temperatures. Never
use the battery until the cells become fully discharged.
Change to the second battery as soon as a drop in per-
formance is noticed. Recharge the battery immediately
so that it is ready for reuse.
Store the battery in a cool, dry place. Never store the
battery where it is exposed to direct sunlight or sources
of heat, e.g. on heaters / radiators or behind a motor
vehicle windscreen. Batteries that have reached the end
of their life must be disposed of safely and correctly to
avoid environmental pollution.
6.2 Charging the battery
DANGER
Use only the Hilti batteries and Hilti chargers listed
under "Accessories".
6.2.1 Charging a new battery for the first time
A new battery must be charged correctly for the first time
before use. This will ensure that the cells form correctly.
Incorrect initial charging may have a permanent, negative
effect on battery capacity. Please refer to the applicable

7 Operation

CAUTION
The tool may get hot during use. Wear protective gloves.
CAUTION
The power tool may suddenly swing to the side (rotate
about its own axis) when drilling, hammer drilling or
screwdriving. Always use the power tool with the side
handle fitted and hold it securely with both hands.
CAUTION
To avoid injuries caused by the insert tool, wear
protective gloves when changing insert tools.
battery charger's operating instructions for information
about initial charging.
6.2.2 Charging a previously used battery
Ensure that the outer surfaces of the battery are clean
and dry before inserting it in the corresponding charger.
Read the operating instructions for the charger for further
information about the charging procedure.
Li-ion batteries are ready for use at any time, even when
only partly charged. Charging progress is indicated by
the LED display (see charger operating instructions).
6.3 Fitting the battery
CAUTION
Before fitting the battery, check that the power tool
is switched off and that the safety lock is engaged
(forward/reverse switch in the middle position). Use
only the Hilti batteries approved for use with this
power tool.
CAUTION
Check that the terminals on the battery and in the
power tool are free from foreign objects before in-
serting the battery in the power tool.
1. Push the battery into the power tool from below as
far as it will go and until it is heard to engage with a
click.
CAUTION A falling battery may present a risk of
2.
injury to yourself or others.
Check that the battery is seated securely in the
power tool.
6.4 Removing the battery 2
1. Press both battery release buttons.
2. Pull the battery downwards out of the power tool.
7.1 Setting forward or reverse rotation 3
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 Adjusting the side handle 4
1. Release the side handle clamping band by turning
the handle counterclockwise.
2. Pivot the side handle into the desired position.
en
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