9
Trouble or fault
Possible cause
Action to be taken
The screwdriver doesn’t work
and one LED blinks.
The battery is too hot or too cold.
▶
Bring the battery to the recom-
mended operating temperature.
The screwdriver doesn’t work
and all four LEDs blink.
The overload cut-out has been
activated.
▶
Release the control switch and
then press it again. Reduce the
load on the tool.
The control switch can’t be
pressed, i.e. the switch is
locked.
The safety lock is engaged.
▶
Set the forward / reverse
selector switch to forward or
reverse rotation.
The screwdriver runs but the
screw can’t be driven.
The wrong direction of rotation is
set.
▶
Use the forward / reverse
selector switch to set the right
direction of rotation.
Running speed suddenly
drops considerably.
Low battery.
▶
Use an approved charger to
charge the battery. → page 6
The battery runs down more
quickly than usual.
Battery condition is not optimal.
▶
Have the battery condition
diagnosed by
Hilti
Service or fit
a new battery.
The battery doesn’t engage
with an audible click.
The retaining lugs on the battery
are dirty.
▶
Clean the retaining lugs and
engage the battery in the
working position.
The screwdriver or the battery
gets very hot.
Electrical fault.
▶
Switch the screwdriver off
immediately, remove the battery
and contact
Hilti
Service.
The screwdriver has been over-
loaded by exceeding its application
limits.
▶
Select a screwdriver with
adequate performance for the
application.
9 Disposal
WARNING
Risk of injury.
Hazards presented by improper disposal.
▶
Improper disposal of the equipment may have the following consequences: The burning of plastic
components generates toxic fumes which may present a health hazard. Batteries may explode
if damaged or exposed to very high temperatures, causing poisoning, burns, acid burns or
environmental pollution. Careless disposal may permit unauthorized and improper use of the
equipment. This may result in serious personal injury, injury to third parties and pollution of the
environment.
▶
Dispose of defective batteries right away. Keep them out of reach of children. Do not disassemble
or incinerate the batteries.
▶
Batteries that have reached the end of their life must be disposed of in accordance with national
regulations or returned to
Hilti
.
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.
10 Manufacturer’s warranty
▶
Please contact your local
Hilti
representative if you have questions about the warranty conditions.
Printed: 26.10.2015 | Doc-Nr: PUB / 5070549 / 000 / 03
