Hilti TE 1000-AVR Manual De Instrucciones página 26

7.1.1 Fitting the insert tool 3
NOTE
The chisel can be adjusted to 6 different positions (in 60°
increments). This ensures that flat chisels and shaped
chisels can always be set to the optimum working posi-
tion.
1. Disconnect the supply cord plug from the power
en
outlet.
2. Check that the connection end of the insert tool is
clean and lightly greased. Clean it and grease it if
necessary.
3. Check that the sealing lip of the dust shield is clean
and in good condition. Clean the dust shield if ne-
cessary or replace it if the sealing lip is found to be
damaged (please refer to the "Care and mainten-
ance" section).
4. Push the insert tool into the chuck and rotate it while
applying slight pressure until it engages in the guide
grooves.
5. Push the insert tool further into the chuck until it is
heard to engage.
6. Check that the insert tool has engaged correctly by
pulling it.
7.1.2 Removing the chisel 4
DANGER
Do not lay a hot insert tool down on flammable ma-
terials. This could cause the material to ignite, resulting
in a fire.
1. Disconnect the mains plug from the power outlet.
2. Open the chuck by pulling back the locking sleeve.
3. Pull the chisel out of the chuck.
7.2 Operation
WARNING
If the power tool starts without pressing the on/off
switch when the supply cord is plugged back in after
unplugging, the power tool must be brought to Hilti
Service immediately.
WARNING
Unplug the supply cord if the on/off switch is found
to be faulty.
CAUTION
Working on the material may cause it to splinter. Wear
eye protection and protective gloves. Wear breathing
protection if no dust removal system is used. Splin-
tering material presents a risk of injury to the eyes and
body.
CAUTION
The work generates noise. Wear ear protectors. Expos-
ure to noise can cause hearing loss.
22
7.2.1 Chiseling
7.2.1.1 Working at low temperatures
NOTE
The power tool must reach a minimum operating tem-
perature before the hammering mechanism begins to
operate.
Bring the power tool to the minimum operating temperat-
ure by switching it on and allowing it to run and warm up.
Bring the tip of the chisel into contact with the work sur-
face at regular intervals (approx. every 30 sec.) to check
whether the hammering mechanism has begun to oper-
ate. Repeat the procedure if the hammering mechanism
does not begin to operate.
NOTE
As starting is electronically controlled, the power tool's
starting characteristics may be different in cold condi-
tions.
7.2.1.2 Switching on
1. Plug the supply cord into the power outlet.
2. Press the on / off switch.
7.2.1.3 Adjusting chiseling power 5
Chiseling power can be reduced to approx. 70% by
pressing the power level selector switch. The power level
LED then lights up, indicating reduced power.
NOTE
Chiseling power can be adjusted only when the power
tool is switched on and ready for use. To reselect full
chiseling power, press the chiseling power level selector
switch again. Switching off and then on again also causes
the power tool to return to full chiseling power.
7.2.1.4 Switching off
1. Press the on / off switch.
2. Disconnect the supply cord plug from the power
outlet.
7.3 Chiseling tips
7.3.1 Starting chiseling 6
Position the tip of the chisel approx. 80-100 mm from the
edge of the workpiece.
7.3.2 Reinforcing bars 7
Always guide the tip of the chisel toward the edge of the
workpiece, not toward reinforcing bars.
7.3.3 Chiseling direction 8
1. Begin with the chisel positioned at an angle of 70°
to 80° to the concrete surface, with the tip of the
chisel pointing toward the edge of the workpiece.
2. Break material away by increasing the angle to ap-
prox. 90° as the chisel penetrates.
7.3.4 Self-sharpening process 9
The chisel should be rotated at regular intervals as even
wear assists the self-sharpening process.