17
en
-CAUTION-
●
The tool and the drilling operation
emit noise.
●
Excessive noise may damage the hear-
ing.
●
Wear ear protection.
-CAUTION-
●
Drilling may cause splintering of the
material.
●
Splinters may cause injury to parts
of the body and eyes.
●
Wear eye protection, protective gloves
and breathing protection if no dust
removal system is used.
7.4 Hammer drilling –
full hammering power
1. Engage the function selection switch in the "hammer
drilling / full hammering power" position.
2. Bring the side handle into the desired position and
check that it is correctly fitted and properly secured.
3. Plug the supply cord into the mains socket.
4. Set the desired drilling power.
– Full drilling power: Full drilling power is always acti-
vated after plugging the supply cord into the mains
socket.
– Reduced drilling power (50%): Press the "reduced
drilling power" button (the drilling power indicator
lights.) To return to full drilling power, press the "reduced
drilling power" button again.
5. Position the tip of the drill bit at the point where the
hole is to be drilled.
6. Press the control switch slowly. Begin drilling at low
speed, increasing speed only after the drill bit has
become centered in the hole.
7. Press the control switch fully to continue drilling at full
power.
8. Do not apply excessive pressure to the tool. This will
not increase its hammering power. Lower contact pres-
sure increases the life of the insert tool.
9. To avoid spalling when drilling through-holes with
breach bits, reduce drilling speed shortly before break-
ing through.
-NOTE-
When working at low temperatures:
The hammering mechanism works only when the tool
has reached a minimum operating temperature.
Bring the drill bit into contact with the base material and
allow the tool to run under no load until the minimum
operating temperature is reached. If necessary, repeat
this procedure until the hammering mechanism begins
to operate.
Active torque control (TE 56-ATC)
The TE 56-ATC is equipped with an active torque con-
trol system in addition to the mechanical clutch. This
system offers additional safety while drilling by quickly
switching off the tool, for example, when the drill bit sticks
on contacting a reinforcing bar or when the insert tool is
tilted unintentionally, thus preventing uncontrolled rota-
tion around the longitudinal axis of the drill bit.
When the torque control system has become activated,
the tool can be returned to normal operating mode by
releasing pressure on the control switch, waiting until
the motor has stopped rotating and then reapplying pres-
sure to the control switch. (An audible "click" indicates
that the tool is again ready for operation).
Always choose a working position in which the electric
tool is free to rotate in a counter-clockwise direction (as
seen by the operator). If this is not possible, the ATC
system cannot react.
7.5 Drilling without hammering action (
)
(only TE 56-ATC)
1. Engage the function selection switch in the "rotary
drilling" position.
2. Bring the side handle into the desired position and
check that it is correctly fitted and properly secured.
3. Plug the supply cord into the mains socket.
4. Position the tip of the drill bit at the point where the
hole is to be drilled.
5. Press the control switch slowly. Begin drilling at low
speed, increasing speed only after the drill bit has
become centered in the hole.
6. Press the control switch fully to continue drilling at
full power.
7. Do not apply excessive pressure to the tool. This will
not increase its hammering power. Lower contact pres-
sure increases the life of the insert tool.
7.6 Chiseling (
/
)
-NOTE-
The chisel can be locked in 24 different positions (in
15° increments). Flat and shaped chisels can thus
always be brought into the optimum position for the job
on hand.
7.6.1 Chisel positioning (
)
1. Turn the function selection switch to the "chisel adjust-
ment" position until it engages.
2. Pivot the side handle into the desired position and
check that it is fitted and secured correctly. (Alterna-
tively, when chiseling, the tool may be held at the sec-
tion of the housing behind the chuck.)
3. Adjust the chisel to the desired position.
7.6.2 Locking the chisel (
)
4. Turn the function selection switch to the "chiseling"
position until it engages.
