Care And Maintenance - Hilti TE 1000-AVR Original Operating Instructions

7.3.3 Chiseling direction 9
1. Begin with the chisel positioned at an angle of 70°
to 80° to the concrete surface, with the tip of the
chisel pointing toward the edge of the workpiece.
2. Break material away by increasing the angle to ap-
prox. 90° as the chisel penetrates.
7.3.4 Self-sharpening process 10
The chisel should be rotated at regular intervals as even
wear assists the self-sharpening process.

8 Care and maintenance

CAUTION
Disconnect the mains plug from the power outlet.
8.1 Care of insert tools
Clean off dirt and dust deposits adhering to the insert
tools and protect them from corrosion by wiping the
insert tools from time to time with an oil-soaked rag.
8.3 Service indicator
NOTE
The power tool is equipped with a service indicator.
Indicator
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 specialists.
7.3.5 Chiseling depth 11
The polygon chisel design ensures that material is broken
up even when the chisel penetrates to great depths.
7.3.6 Contact pressure
If inadequate pressure is applied, the chisel will jump
around uncontrollably.
Application of excessive pressure will result in a loss of
chiseling performance.
8.2 Care of the power tool
CAUTION
Keep the power tool, especially its grip surfaces,
clean and free from oil and grease. Do not use clean-
ing agents which contain silicone.
Never operate the power tool when the ventilation slots
are blocked. Clean the ventilation slots carefully using
a dry brush. Do not permit foreign objects to enter the
interior of the power tool. Clean the outside of the power
tool at regular intervals with a slightly damp cloth. Do
not use a spray, steam pressure cleaning equipment or
running water for cleaning. This may negatively affect the
electrical safety of the power tool.
Constant red light
Blinking red light
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 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 appliance repaired by Hilti Service.
8.6 Checking the power tool after care and
maintenance
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.
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.
See section "Troubleshooting".
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