Troubleshooting - Hilti SCW 22-A Mode D'emploi

- If the battery no longer reaches full charge, it may
have lost capacity due to aging or overstressing. It
is possible to continue working with a battery in this
condition but it should be replaced in good time.
8.4 Maintenance
WARNING
Repairs to the electrical section of the power tool may
be carried out only by trained electrical specialists.

9 Troubleshooting

Fault
The power tool does not run.
The on / off button can not
be pressed, i.e. the button is
locked.
Running speed suddenly drops
considerably.
The battery runs down more
quickly than usual.
The power tool does not restart
by itself after the saw blade has
stalled.
The battery does not engage
with an audible double click.
The power tool or the battery
becomes very warm.
No / reduced suction power.
Check all external parts of the power tool for damage
at regular intervals and check that all controls operate
faultlessly. Do not operate the power tool if parts are
damaged or when the controls do not function faultlessly.
Have the power tool repaired by Hilti Service.
8.5 Checking the power tool after care and
After carrying out care and maintenance work on the
power tool, check that all protective and safety devices
are fitted and that they function faultlessly.
Possible cause
The battery is discharged or fitted
incorrectly.
Electrical fault.
The battery is discharged/hot.
Not a fault (safety function).
The battery is discharged or the work-
ing pressure applied to the power tool
is too high.
Battery condition is not optimal.
The overload cut-out has been activ-
ated.
The retaining lugs on the battery are
dirty.
Electrical fault.
The power tool has been overloaded
(application limits exceeded).
Chip ejector channel blocked.
maintenance
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.
Change the battery and recharge the
discharged battery. Reduce the work-
ing pressure applied to the power
tool.
Have battery condition diagnosed by
Hilti Service or replace with a new
battery.
Press the switch-on interlock and the
on/off button again.
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).
Clean out the chip ejector channel.
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