Before Use; Charging The Battery; Operation - Hilti SF 151-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 performance 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

CAUTION
Use only Hilti SFB 150 or SFB 155 batteries.
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

7. Operation

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
Printed: 07.07.2013 | Doc-Nr: PUB / 5070660 / 000 / 00
refer to the applicable battery charger's operating
instructions for information about initial charging.
6.2.2 Charging a previously used battery
CAUTION
Use only the Hilti chargers listed under "Insert
tools, accessories".
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.
6.2.2.1 Recharging NiCd and NiMH batteries
NiCd and NiMH batteries should be allowed to reach
full charge each time they are charged.
6.3 Fitting the battery to the power tool
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.
1. Push the battery into the power tool from below
until it is heard to engage with a click.
2. CAUTION A falling battery may present a risk of
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.
direction) to select forward rotation. Push the forward
/ reverse switch to the left (power tool held in working
direction) to select reverse rotation.
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