30 English 2235358
*2235358*
Trouble or fault Possible cause Action to be taken
The control switch
cannot be pressed,
or is stuck.
The forward/reverse
switch is in the middle
position.
▶ Set the
forward/reverse
switch to the desired
position. → page 27
Running speed sud-
denly drops consid-
erably.
Battery is discharged. ▶ Charge the battery.
→ page 26
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
lugs and engage the
battery in the working
position.
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.
The tool is overloaded
(application limits ex-
ceeded).
▶ Select a suitable
power tool for the
application.
10 RoHS (Restriction of Hazardous Substances)
Click on the link to go to the table of hazardous substances:
qr.hilti.com/r9940037.
There is a link to the RoHS table, in the form of a QR code, at the end of this
document.
11 Disposal
Most of the materials from which Hilti tools and appliances are manu-
factured can be recycled. The materials must be correctly separated before
they can be recycled. In many countries, your old tools, machines or appli-
ances can be returned to Hilti for recycling. Ask Hilti Service or your Hilti
representative for further information.
▶ Do not dispose of power tools, electronic equipment or batteries as
household waste!
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