Hilti TE 70 Operating Instructions Manual page 13

CAUTION
Switch the power tool on only after bringing it into
the working position.
CAUTION
Do not operate the function selector switch while
the motor is running.
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7.2.1 TPS theft protection system (optional)
NOTE
The power tool may be equipped with the optional
theft protection system. If the power tool is equipped
with this feature, it can be unlocked and made ready
for operation only through use of the corresponding
TPS key.
7.2.1.1 Unlocking the power tool 5
1. Plug the supply cord into the power outlet. The
yellow theft protection indicator LED blinks. The
power tool is now ready to receive the signal from
the TPS key.
2. Hold the TPS key 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 Hammer drilling 6
NOTE
Working at low temperatures: The hammering mech-
anism works only when the power tool has reached
a minimum operating temperature. Bring the tip of
the drill bit or chisel into contact with the workpiece
and allow the power tool to run under no load until
it reaches the minimum operating temperature. If ne-
cessary, repeat this procedure until the hammering
mechanism begins to operate.
26
1. Turn the function selector switch until it engages
in the "Hammer drilling" position.
2. Bring the side handle into the desired position
and check that it is fitted correctly and secured.
3. Plug the supply cord into the power outlet.
4. Set the drilling power.
NOTE After connecting the supply cord to the
electric supply, the power tool is always set to full
drilling power.
NOTE To set the power tool to reduced (50%)
drilling power, press the "reduced power" button.
The drilling power LED then lights. To reselect full
drilling power, press the "reduced power" button
again.
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 working
at full power.
8. Do not apply excessive pressure. This will not in-
crease the power tool's hammering performance.
Lower pressure extends the life of the insert tool.
9. Reduce drilling speed shortly before breaking
through in order to avoid damage to the surface
at the rear side.
7.2.3 Active Torque Control (TE 80‑ATC/
TE 70‑ATC)
In addition to the mechanical safety clutch, the power
tool is also equipped with the Active Torque Control
system. This system offers additional comfort while
drilling as it causes rapid shutdown upon sudden
rotation of the power tool about the drill bit axis, e.g.
when the drill bit sticks due to hitting a rebar or when
the drill bit is tilted unintentionally. When the torque
control system has become activated, the power tool
can be restarted by releasing the control switch and
re-engaging it after the motor has stopped rotating
(a "click" indicates that the power tool is again ready
for operation). Always choose a working position in
which the electric tool is free to rotate in a clockwise
direction (as seen by the operator). If this rotation is
not possible, the ATC system will be unable to react.
7.2.4 Chiseling 7
NOTE
The chisel can be adjusted to 24 different positions
(in 15° increments). This ensures that flat chisels and