Care And Maintenance - Hilti TE 4-A22 Manual De Instrucciones

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7.2.3 Drilling without hammering 8
1.
Set the forward / reverse switch to the "forward"
position before beginning drilling.
2.
Turn the function selector switch until it engages in
the "Drilling without hammering" position. Do not
operate the function selector switch while the motor
is running.
3.
Bring the side handle into the desired position and
en
check that it is fitted correctly and secured.
4.
Insert the battery.
5.
Position the power tool and drill bit at the point
where the hole is to be drilled.
6.
Press the control switch slowly (drill at a low speed
until the drill bit centers itself in the hole).
7.
Press the control switch fully to continue drilling with
full power.
8.
Adjust the pressure applied to the power tool ac-
cording to the material you are working on. This will
ensure the optimum rate of drilling progress.
7.2.4 Hammer drilling 9
1.
Set the forward / reverse switch to the "forward"
position before beginning drilling.
2.
Turn the function selector switch until it engages in
the "Hammer drilling" position. Do not operate the
function selector switch while the motor is running.
3.
Bring the side handle into the desired position and
check that it is fitted correctly and secured.
4.
Insert the battery.

8 Care and maintenance

CAUTION
Before beginning cleaning, remove the battery from
the power tool in order to prevent unintentional start-
ing.
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.
Check that the connection end of the insert tool is clean
and lightly greased. Clean it and grease it if necessary.
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.
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
24
5.
Position the power tool and drill bit at the point
where the hole is to be drilled.
6.
Press the control switch slowly (drill at a low speed
until the drill bit centers itself in the hole).
7.
Press the control switch fully to continue drilling with
full power.
8.
Adjust the pressure applied to the power tool ac-
cording to the material you are working on. This will
ensure the optimum rate of drilling progress.
9.
Reduce drilling speed shortly before breaking
through in order to avoid spalling.
7.2.5 Reading the charge status LED display on
Li‑ion batteries 10
NOTE
The charge status cannot be indicated while the power
tool is in operation. LED 1 blinks when the battery is
fully discharged or when it is too hot (temperature above
80°C). The battery must then be inserted in the charger.
If all 4 LEDs blink, this indicates that the power tool has
been overloaded or has overheated.
The Li-ion battery features a charge status LED display.
The charge status is indicated by the LEDs on the battery
during charging (please refer to the operating instructions
for the charger). When the battery is not in use, pressing
one of the battery release buttons or inserting the battery
into the power tool causes the battery charge status to
be displayed by the four LEDs for three seconds.
See section: 2.10 Li‑ion battery charge status
running water for cleaning. This may negatively affect the
electrical safety of the power tool.
8.3 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.
8.4 Care of the Li-ion battery
Avoid entrance of moisture.
Charge the battery fully before using it for the first time.
In order to achieve maximum battery life, stop discharging
the battery as soon as a significant drop in performance
is noticed.
NOTE
If use of the power tool continues, further battery dis-
charge will be stopped automatically before the battery
cells suffer damage.

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