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

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.
7.2.4.3 Chiseling 13
1. Fit the battery.
NOTE Do not operate the function selector switch
en
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.

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
running water for cleaning. This may negatively affect the
electrical safety of the power tool.
26
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
8.3 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 NiCd battery
Avoid entrance of moisture. Keep the electrical contacts
free from dust, oil and grease. If necessary, use a clean
cloth to clean the contact surfaces. Do not continue to
operate the power tool until the battery is completely dis-
charged as this may damage the battery cells. Recharge
the battery as soon as a drop in performance is noticed.
NOTE
Please refer to the operating instructions for the charger
for further information about charging the battery.
8.5 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.