Troubleshooting - Hilti SCW22-A Manual De Instrucciones

- Interruption of the charging procedure has no negative
effect on battery life.
- Charging can be started at any time with no negative
effect on battery life. There is no memory effect (as
with NiCd or NiMH batteries).
- For best results, batteries should be stored fully
charged in a cool dry place. Storing the battery in
places subject to high ambient temperatures (e.g. at
a window) has an adverse effect on battery life and
increases the rate of self-discharge.
- If the battery no longer reaches full charge, it may
have lost capacity due to aging or overstressing. It
is still possible to work with this battery. You should,
however, soon replace the battery with a new one.
8.4 Cleaning the safety devices
1. Remove the saw blade before cleaning the safety
devices.
2. Clean the safety devices carefully with a dry brush.
3. Use a suitable tool to remove deposits or wood
chips from the inside surfaces of the safety devices.

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.
4.
8.5 Maintenance
WARNING
Repairs to the electrical section of the power tool may
be carried out only by trained electrical specialists.
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.
8.6 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.
To check the pivoting guard, open the guard fully by
moving the guard operating lever.
The pivoting guard must close quickly and completely
when the guard operating lever is released.
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 feed
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.
Fit the saw blade.
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 feed
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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