Operating Instruction SF 2(H)-A12

*2235450*
2235450 English 15
▶ Do not store batteries on the charger. Always remove the battery from
the charger when the charging operation has completed.
▶ Never leave batteries in direct sunlight, on sources of heat, or behind
glass.
▶ Store the product and batteries where they cannot be accessed by
children or unauthorized persons.
▶ Prior to each use and before and after prolonged storage, check the
product and the batteries for damage.
9 Troubleshooting
If the trouble you are experiencing is not listed in this table or you are unable
to remedy the problem by yourself, please contact Hilti Service.
9.1 Troubleshooting
If the trouble you are experiencing is not listed in this table or you are unable
to remedy the problem by yourself, please contact Hilti Service.
Trouble or fault Possible cause Action to be taken
The power tool
doesn’t run.
The battery is not fully
inserted.
▶ Push the battery in
until it engages with
an audible click.
Battery is discharged. ▶ Charge the battery.
The control switch
can’t be pressed, i.e.
the switch is locked.
The forward/reverse
switch is in the middle
position.
▶ Set the
forward/reverse
switch to the desired
position. → page 12
The battery runs
down more quickly
than usual.
Very low ambient tem-
perature.
▶ Allow the battery to
warm up slowly to
room temperature.
The battery doesn’t
engage with an audi-
ble click.
The retaining lugs on the
battery are dirty.
▶ Clean the retaining lug
and push the battery
in until it engages.
Contact Hilti Service if
the problem persists.
The power tool or
the battery becomes
very warm.
Electrical fault. ▶ Switch the power
tool off immediately,
remove the battery,
keep it under obser-
vation, allow it to cool
down and contact
Hilti Service.