Care And Maintenance; Service Indicator - Hilti TE 500 Mode D'emploi

2. Hold the TPS key or the TPS watch strap buckle
against the lock symbol. The power tool is unlocked
as soon as the yellow theft protection indicator LED
no longer lights.
NOTE If, for example, the electric supply is briefly
interrupted due to a power failure or disconnected
when moving to a different workplace, the power
tool remains ready for operation for approx. 20
minutes. In the event of a longer interruption, the
TPS key must be used again to unlock the power
tool.
7.2.1.2 Activation of the theft protection system for
the power tool
NOTE
Further detailed information on activation and use of the
theft protection system can be found in the operating
instructions for the theft protection system.
7.2.2 Chiseling
NOTE
Working at low temperatures: The hammering mech-
anism works only when the power tool has reached a
minimum operating temperature. Bring the chisel into
contact with the base material and allow the power tool
to run under no load until the minimum operating tem-
perature is reached. If necessary, repeat this procedure
until the hammering mechanism begins to operate.
NOTE
The chisel can be adjusted to 24 different positions
(in 15° increments). This ensures that flat chisels and

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.
8.2 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.

8.3 Service indicator

NOTE
The power tool is equipped with a service indicator.
shaped chisels can always be set to the optimum working
position.
7.2.2.1 Chisel position adjustment 6
CAUTION
Do not operate the power tool when the selector switch
is set to "Chisel adjustment".
1. Disconnect the supply cord plug from the power
outlet.
2. Turn the function selector switch until it engages in
the "Chisel adjustment" position.
3. Rotate the chisel to the desired position.
4. Turn the function selector switch to the "chiseling"
position.
5. Rotate the chisel until it engages. Do not operate the
function selector switch while the motor is running.
7.2.3 Locking the control switch
When chiseling, the control switch can be locked in the
"on" position.
7.2.3.1 Locking the control switch
1. Press the control switch fully.
2. Press the control switch lock fully. The lock is posi-
tioned on the inside of the upper control switch.
NOTE The power tool then operates in sustained
mode.
7.2.3.2 Resetting the control switch
Press the control switch fully and then release it.
The power tool then switches off.
The outer casing of the power tool is made from impact-
resistant plastic. Sections of the grip are made from a
synthetic rubber material.
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.
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