Hilti ST 1800-A22, Original Operating Instructions

Page: 27 / 298

*439718*
439718 English 21
Trouble or fault Possible cause Action to be taken
The control switch can’t be
pressed, i.e. the switch is
locked.
The forward / reverse switch is in
the middle position.
▶
Push the forward / reverse
switch to the left or right.
The battery is not heard to
engage.
The retaining lugs on the battery
are dirty.
▶
Clean the retaining lugs and
push the battery in until it
engages. Contact Hilti Service
if the problem persists.
LED 1 blinks. The battery is discharged.
▶
Charge the battery.
The battery is too hot.
▶
Bring the battery to the recom-
mended operating temperature.
The battery is too cold.
▶
Bring the battery to the recom-
mended operating temperature.
The screwdriver doesn’t work
and all four LEDs blink.
The product is overloaded (appli-
cation limits exceeded).
▶
Release the control switch and
then press it again. Reduce the
load on the tool.
8.2 The metal construction screwdriver is operational.
Trouble or fault Possible cause Action to be taken
Speed of rotation drops con-
siderably.
The battery is discharged.
▶
Charge the battery.
The metal construction
screwdriver or battery gets
very hot.
Electrical fault.
▶
Switch the metal construction
screwdriver off immediately,
remove the battery, keep it
under observation, allow it
to cool down and contact
Hilti Service.
The screw is pressed too
tightly against the surface.
The depth gauge is set incorrectly.
▶
Turn the depth gauge to the
right.
The screw is not pressed
tightly enough against the
surface.
The depth gauge is set incorrectly.
▶
Turn the depth gauge to the left.
The screwdriver runs but the
screw can’t be driven.
The wrong direction of rotation is
set.
▶
Set the forward/reverse switch
to the desired direction of
rotation.
9 Disposal
Most of the materials from which Hilti tools and appliances are manufactured can be recycled. The
materials must be correctly separated before they can be recycled. In many countries, your old tools,
machines or appliances can be returned to Hilti for recycling. Ask Hilti Service or your Hilti representative
for further information.
Battery disposal
Improper disposal of batteries can result in health hazards from leaking gases or fluids.
▶
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 governmental garbage disposal or public
health and safety resources for disposal instructions.
▶
Do not dispose of power tools, electronic equipment or batteries as household waste!
10 RoHS (Restriction of Hazardous Substances)
Click on the links to go to the table of hazardous substances: qr.hilti.com/r6614473
There is a link to the RoHS table, in the form of a QR code, at the end of this document.
Printed: 10.08.2018 | Doc-Nr: PUB / 5070730 / 000 / 05