10
Malfunction Possible cause Action to be taken
1 LED blinks. The battery is discharged. ▶ Change the battery and charge
the empty battery.
The battery is too hot or too cold. ▶ Bring the battery to the recom-
mended working temperature.
4 LEDs blink. The circular saw was overloaded
briefly.
▶ Release the control switch and
then press it again.
The overheating prevention cut-out
has been activated.
▶ Allow the circular saw to cool
down to cool down and clean
the air vents.
7.2 The circular saw is in working order.
Trouble or fault Possible cause Action to be taken
The on/off button cannot be
pressed, i.e. the button is
locked.
Not a fault (safety function). ▶ Press the safety lock.
Running speed suddenly
drops considerably.
The saw blade jams. ▶ Do not tilt the saw blade.
Chips / cuttings are not trans-
ported into the chip collector
and thus fall onto the base
plate.
The chip collector is full. ▶ Empty the chip collector.
The chip ejector channel is
blocked.
▶ Clean the chip ejector channel.
The saw blade stalls. Saw advance pressure is too high. ▶ Reduce advance pressure and
switch the product back on.
The battery runs down more
quickly than usual.
Very low ambient temperature. ▶ Allow the battery to warm up
slowly to room temperature.
The battery does not en-
gage with an audible "double
click".
The retaining lugs on the battery
are dirty.
▶ Clean the retaining lugs and refit
the battery.
The circular saw or battery
gets very hot.
Electrical fault. ▶ Switch off the circular saw
immediately. Remove the
battery and keep it under
observation. Allow it to cool
down. Contact Hilti service.
The product is overloaded (appli-
cation limits exceeded).
▶ 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 “Technical data”
section.
8 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.
Printed: 01.09.2017 | Doc-Nr: PUB / 5292940 / 000 / 00Printed: 01.09.2017 | Doc-Nr: PUB / 5292940 / 000 / 01
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