Troubleshooting - Hilti TE 1000-AVR Operating Instructions Manual

8.3 Service indicator
NOTE
The power tool is equipped with a service indicator.
Indicator
en
8.4 Cleaning or replacing the dust shield
Clean the dust shield on the chuck with a dry, clean
cloth at regular intervals. Clean the sealing lip by
wiping it carefully and then grease it again lightly
with Hilti grease. It is essential that the dust shield
is replaced if the sealing lip is found to be damaged.
Push the tip of a screwdriver under the edge of the
dust shield and prise it out toward the front. Clean
the area of the chuck in contact with dust shield and
then fit a new dust shield. Press it in firmly until it
engages.
8.5 Maintenance
WARNING
Repairs to the electrical section of the power tool
may be carried out only by trained electrical spe-

9. Troubleshooting

Fault
The power tool doesn't start.
12
Constant red light End of service interval - servicing is due. After the
lamp lights for the first time, the power tool may
continue to be used for several hours before the
automatic cut-out is activated. To ensure that the
power tool is always ready for use, it should be
returned to Hilti for servicing in good time.
Blinking red light See section "Troubleshooting".
cialists. Wait approx. 1 minute to allow dissipation
of residual voltage before dismantling the power tool
and removing the electronics unit.
Check all external parts of the power tool for dam-
age 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 appliance 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.
Possible cause
Initialization of the electronics is in
progress (takes up to approx. 4 sec.
after plugging in) or the electronic
restarting interlock has become
activated after an interruption in the
electric supply.
Interruption in the electric supply.
The supply cord or plug is defective. Have it checked by a trained
The control switch is defective.
maintenance
Remedy
Switch the power tool off and on
again.
Plug in another electric appliance
and check whether it works.
electrical specialist and replaced if
necessary.
Have it checked by a trained
electrical specialist and replaced if
necessary.