Hilti TE 7-A Manual De Instrucciones página 31

7.1.4 Removing the chuck 8
CAUTION
Remove the depth gauge from the side handle and the
insert tool from the chuck in order to avoid injury.
NOTE
Set the selector switch to the "Chiseling" position before
removing the chuck.
1. Set the forward / reverse switch to the middle posi-
tion or remove the battery from the power tool.
2. Pull the chuck sleeve forward and hold it securely.
3. Remove the chuck by pulling it away from the power
tool.
7.1.5 Fitting the chuck 9
CAUTION
Remove the depth gauge from the side handle and the
insert tool from the chuck in order to avoid injury.
NOTE
Set the selector switch to the "Chiseling" position before
removing the chuck.
1. Set the forward / reverse switch to the middle posi-
tion or remove the battery from the power tool.
2. Grip the chuck sleeve, pull it forward and hold it
securely in this position.
3. Slide the chuck onto the guide tube from the front
and then release the sleeve.
4. Rotate the chuck until it is heard to engage.
7.2 Operation
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.
7.2.1 Working at low temperatures
NOTE
The hammering mechanism works only when the power
tool has reached a minimum operating temperature.
Bring the drill bit briefly into contact with the base material
while allowing the power 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.
7.2.2 Drilling without hammering 10
1. Turn the function selector switch until it engages in
the "Drilling without hammering" 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. 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
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.
7.2.3 Hammer drilling 11
1. Turn the function selector switch until it engages in
the "Hammer drilling" 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. 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
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.
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