Troubleshooting; Disposal - Hilti SCM 22-A Operating Instructions Manual

9 Troubleshooting

Fault
The power tool does not run.
en
The on / off button can not
be pressed, i.e. the button is
locked.
Running speed suddenly drops
considerably.
Chips are not transported into
the chip collector and thus fall
onto the base plate.
The saw blade stalls.
The tool doesn't work and all 4
LEDs blink.
The power tool doesn't run and
1 LED blinks.
The battery runs down more
quickly than usual.
The battery does not engage
with an audible double click.
The power tool or the battery
becomes very warm.

10 Disposal

CAUTION
Improper disposal of the equipment may have serious 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.
CAUTION
Dispose of defective batteries without delay. Keep them out of reach of children. Do not attempt to open or dismantle
batteries and do not dispose of them by incineration.
12
Possible cause
The battery is discharged or fitted
incorrectly.
Electrical fault.
The battery is discharged/hot.
Not a fault (safety function).
The saw blade jams.
The chip collector is full or the chip
deflector is blocked.
Saw advance pressure is too high.
The power tool has been overloaded.
The overheating prevention cut-out
has been activated.
The battery is discharged.
The battery is too hot or too cold.
Battery condition is not optimal.
The retaining lugs on the battery are
dirty.
Electrical fault.
The power tool has been overloaded
(application limits exceeded).
Remedy
The battery must be heard to engage
with a double click or, respectively,
needs to be charged.
Remove the battery from the power
tool and contact Hilti Service.
Deep discharge prevention / the elec-
tronics switch off. Insert the battery in
the charger or allow it to cool down.
Press the switch-on interlock.
Keep the saw blade running straight.
Empty the chip collector and/or clean
the chip ejector channel.
Reduce advance pressure and restart
the saw.
Release the control switch and press
it again.
Allow the power tool to cool down.
Clean the ventilation slots.
Change the battery and recharge the
discharged battery.
Bring the battery to the recommen-
ded working temperature.
Have battery condition diagnosed by
Hilti Service or replace with a new
battery.
Clean the retaining lugs and check
that the battery engages securely.
Contact Hilti Service if the problem
persists.
Switch the power tool off immedi-
ately, remove the battery and contact
Hilti Service.
Use the right power tool for the job
(don't use a low-powered tool for
heavy work).