Hilti 3490197 Use and Care Manual download pdf (Page 17)

9. Troubleshooting

Fault Possible cause Remedy

The power tool does not run.

The battery is discharged or fitted

incorrectly.

The battery must be heard to en-

gage with a double click or, respec-

tively, needs to be charged.

Electrical fault. Remove the battery from the power

tool and contact Hilti Service.

The battery is discharged/hot. Deep discharge prevention / the

electronics switch off. Insert the

battery in the charger or allow it to

cool down.

The on / off button can not

be pressed, i.e. the button is

locked.

Not a fault (safety function).

Press the switch-on interlock.

Running speed suddenly

drops considerably.

The saw blade jams. Keep the saw blade running

straight.

Chips are not transported into

the chip collector and thus fall

onto the base plate.

The chip collector is full or the chip

deflector is blocked.

Empty the chip collector and/or

clean the chip ejector channel.

The saw blade stalls.

Saw advance pressure is too high.

Reduce advance pressure and

restart the saw.

The power tool doesn’t work

and all 4 LEDs blink.

The power tool has been over-

loaded.

Release the control switch and

press it again.

The overheating prevention cut-out

has been activated.

Allow the power tool to cool down.

Clean the ventilation slots.

The power tool doesn’t run

and 1 LED blinks.

The battery is discharged.

Change the battery and recharge

the discharged battery.

The battery is too hot or too cold. Bring the battery to the recom-

mended working temperature.

The battery runs down more

quickly than usual.

Battery condition is not optimal. Have battery condition diagnosed

by Hilti Service or replace with a

new battery.

The battery does not engage

with an audible double click.

The retaining lugs on the battery

are dirty.

Clean the retaining lugs and check

that the battery engages securely.

Contact Hilti Service if the problem

persists.

The power tool or the battery

becomes very warm.

Electrical fault. Switch the power tool off imme-

diately, remove the battery and

contact Hilti Service.

The power tool has been

overloaded (application limits

exceeded).

Use the right power tool for the job

(don’t use a low-powered tool for

heavy work).

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