Hilti UH 650 Manual De Instrucciones página 11

7.2.2 Key-type chuck
-NOTE-
Use the chuck key supplied for opening and closing the
chuck.
Unplug the supply cord from the mains socket.
Opening the key-type chuck
1. Insert the chuck key in one of the three holes provided
on the chuck.
2. To open the chuck, turn the key counterclockwise.
3. Remove the insert tool from the chuck.
4. Remove the chuck key.
Closing the key-type chuck
1. Open the chuck sufficiently to allow the shaft of the
insert tool to be inserted.
2. Fit the insert tool into the chuck.
3. Close the jaws of the chuck by turning the toothed
ring until the jaws grip the insert tool.
4. Insert the chuck key in one of the three holes provided
on the chuck.
5. Secure the insert tool in the chuck by turning the chuck
key clockwise.
6. Remove the chuck key.
7.2.3 2-speed gear selector switch
-NOTE-
Change gear only when rotation has stopped.
The mechanical 2-speed gear selector switch can be
used to set the desired speed range:
st
1 gear = 0 – 1100 r.p.m.
nd
2 gear = 0 – 3100 r.p.m.
7.2.4 Rotary drilling
-NOTE-
The forwards/reverse switch must be set to the "R" posi-
tion.
1. Engage the function selector switch in the
position.
2. Adjust the side handle to the desired position and
check that it is fitted and secured correctly.
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 (on/off 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 (on/off switch) fully to con-
tinue drilling at full power.
7.2.5 Hammer drilling
-NOTE-
The forwards/reverse switch must be set to the "R" posi-
tion.
1. Engage the function selector switch in the
tion.
Printed: 07.07.2013 | Doc-Nr: PUB / 5071287 / 000 / 00
2. Adjust the side handle to the desired position and
check that it is fitted and secured correctly.
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 (on/off 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 (on/off switch) fully to con-
tinue drilling at full power.
7. When drilling through-holes, avoid spalling by reduc-
ing drilling speed shortly before breaking through
(release the on/off switch slowly).
7.2.6 On/off switch with electronic speed control
The speed can be controlled by pressing the on/off switch
gradually until maximum speed is reached.
7.2.7 Lockbutton for sustained operation
The lockbutton is used to lock the on/off switch in the
"on" position: the motor then runs constantly (sustained
operating mode).
Activating sustained operating mode
1. Press the on/off switch and hold it in this position.
2. Press the lockbutton and hold it in this position.
3. Release the on/off switch.
4. Release the lockbutton.
Deactivating sustained operating mode
1. Press the on/off switch and then release it.
7.2.8 Forwards/reverse rotation
The forwards/reverse switch can be used to select the
desired direction of rotation.
-NOTE-
An interlock prevents switching between forwards/reverse
while the motor is running.
The forwards/reverse switch must be set to the "R" posi-
tion for hammer drilling and rotary drilling.
– Switch set to "R"
position
– Switch set to "L"
position
posi-
= forwards rotation
(R )
= reverse rotation (L)
en
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