Troubleshooting - Hilti SF 22-A Manual

▶ Store the tool and batteries in a place where they cannot be accessed by children or unauthorized
persons.
▶ Check the tool and batteries for damage before use after long periods of storage.
8

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.
8.1 Troubleshooting
Trouble or fault
The power tool doesn't run.
The power tool doesn't work
and all four LEDs blink.
The power tool doesn't work
and one LED flashes.
The on/off button can't be
pressed, i.e. the button is
locked.
No hammering action.
The battery runs down more
quickly than usual.
The battery doesn't engage
with an audible double click.
The tool or battery gets very
hot.
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!
Printed: 24.09.2018 | Doc-Nr: PUB / 5152424 / 000 / 05
Possible cause
The battery is not fully inserted.
The battery is discharged.
The power tool has been over-
loaded briefly.
The overheating cut-out has been
activated.
The battery is discharged.
The battery is too hot or too cold.
The forward/reverse selector
switch is in the middle position.
The operating mode is not set cor-
rectly at the selector ring.
Very low ambient temperature.
The retaining lugs on the battery
are dirty.
The tool is overloaded (application
limits exceeded).
Action to be taken
▶ Insert the battery. → page 7
▶ Charge the battery. → page 7
▶ Release the control switch and
then press it again.
▶ Allow the power tool to cool
down. Clean the air vents.
▶ Charge the battery. → page 7
▶ Bring the battery to the recom-
mended operating temperature.
▶ Set the forward/reverse switch
to the desired position.
→ page 9
▶ Set the power tool to "hammer
drilling". → page 10
▶ 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.
▶ Pay attention to the power
and performance rating of the
product before using it, i.e
check its suitability for the job
on hand. See the "Technical
data" section.
English 11