Hilti SF 4-A22 Manual page 21

Trouble or fault
The power tool does
not work.
The control switch
cannot be pressed,
or is stuck.
The battery runs
down more quickly
than usual.
The battery doesn't
engage with an audi-
ble click.
The power tool or
the battery becomes
very warm.
9 Disposal
WARNING
Risk of injury due to incorrect disposal! Health hazards due to escaping
gases or liquids.
▶ DO NOT send batteries through the mail!
▶ Cover the terminals with a non-conductive material (such as electrical
tape) to prevent short circuiting.
▶ Dispose of your battery out of the reach of children.
▶ Dispose of the battery at your Hilti Store, or consult your local gov-
ernmental garbage disposal or public health and safety resources for
disposal instructions.
*2253605*
Possible cause
The battery is not fully
inserted.
Battery is discharged.
The forward/reverse
switch is in the middle
position.
Very low ambient tem-
perature.
The retaining lugs on the
battery are dirty.
Electrical fault.
The tool is overloaded
(application limits ex-
ceeded).
2253605
Action to be taken
▶ Push the battery in
until it engages with
an audible click.
▶ Change the battery
and charge the empty
battery.
▶ Push the
forward/reverse
switch to the left or
right.
▶ Allow the battery to
warm up slowly to
room temperature.
▶ Clean the retaining
lugs and push the
battery in until it
engages. Contact
Hilti Service if the
problem persists.
▶ Switch the power
tool off immediately,
remove the battery,
keep it under obser-
vation, allow it to cool
down and contact
Hilti Service.
▶ Select a suitable
power tool for the
application.
English 15