Care And Maintenance - Hilti TE 7-A Operating Instructions Manual

3. Fit the battery.
4. Position the power tool and drill bit at the point
where the hole is to be drilled.
5. Press the control switch slowly (drill at a low speed
until the drill bit centers itself in the hole).
6. Press the control switch fully to continue drilling with
en
full power.
7. 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.
8. Reduce drilling speed shortly before breaking
through in order to avoid spalling.
7.2.4 Chiseling
NOTE
The chisel can be adjusted to 18 different positions. This
ensures that flat chisels and shaped chisels can always
be set to the optimum working position.
NOTE
Check that the connection end of the insert tool is clean
and lightly greased. Clean it and grease it if necessary.
7.2.4.1 Chisel position adjustment 12
CAUTION
Do not operate the power tool when the selector switch
is set to "Chisel adjustment".
1. Turn the function selector switch until it engages in
the "Chisel adjustment" position. Do not operate the
function selector switch while the motor is running.
2. Bring the side handle into the desired position and
check that it is fitted correctly and secured.
3. Rotate the chisel to the desired position.
7.2.4.2 Locking the chisel 13
Turn the function selector switch until it engages in the
"Chiseling" position. Do not operate the function selector
switch while the motor is running.

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.
10
7.2.4.3 Chiseling 13
1. Fit the battery.
NOTE Do not operate the function selector switch
while the motor is running.
2. Position the tip of the chisel at the point where
chiseling is to begin.
3. Press the control switch.
7.2.5 Forward / reverse
NOTE
The forward / reverse switch is used to select the direction
of rotation of the drive spindle. An interlock prevents
switching while the motor is running. The control switch
is locked when the forward / reverse switch is in the
middle position.
For forward rotation, push the forward / reverse switch
on the side of the power tool toward the chuck in the
direction of the arrow.
For reverse rotation, push the forward / reverse switch on
the side of the power tool toward the grip in the direction
of the arrow.
Bring the forward / reverse switch into the desired posi-
tion.
7.2.6 Reading the charge status LED display on
Li‑ion batteries 14
NOTE
Indication of the charge status is not possible while the
power tool is in operation or immediately after operation.
Indication is given (LED 1 blinks) only when the battery is
fully discharged or when it is too hot (temperature >80°).
The Li-ion battery features a charge status LED display.
During charging, charge status is indicated by the display
on the battery. This information is not available for 3-4
seconds after using the power tool. When the battery is
at rest (not in use), its charge status is indicated by the
four LEDs on the battery for a time of three seconds after
pressing one of the battery release buttons.
See section: 2.10 Li‑ion battery charge status
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