Operation - Hilti UH 240-A Mode D'emploi

7. Operation

Noise is emitted by the tool and the
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en
screwdriving or drilling procedure.
Excessive noise may damage the
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hearing.
Wear ear protection.
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The screwdriving procedure may
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cause the material to splinter.
Splintering material may cause injury
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to the body, respiratory passages and
the eyes.
Wear eye and breathing protection.
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7.1 Setting forwards or reverse rotation
The direction of rotation can be selected by operating the
forward / reverse push switch
operation of the switch while the motor is running. When
in the middle position, the on / off switch is locked.
– Forwards rotation: Push the forward / reverse switch
to the right (as seen from the direction in which the
tool is used).
– Reverse rotation: Push the forward / reverse switch
to the left (as seen from the direction in which the tool
is used).
7.2 Setting the speed (3-speed gear selector switch)
-CAUTION-
Operate the gear selector switch only when rotation has
stopped.
1. Set the switch to position 1 for a speed range of 0–
350 r.p.m., position 2 for a speed range of 0–1300
r.p.m. or position 3 for a speed range of 0–1950 r.p.m.
7.3 Screwdriving
1. Set the desired direction of rotation by way of the for-
ward / reverse switch.
7.3.1 Torque setting
1. Set the torque by turning the torque clutch setting
ring to the desired torque setting(1–15).
7.4 Hammer drilling
1. Turn the torque clutch setting ring to the hammer
drilling symbol.
-CAUTION-
Take care to avoid pinching the fingers between the chuck
and setting ring.
7.5 Drilling
1. Turn the torque clutch setting ring to the drilling symbol.
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Printed: 07.07.2013 | Doc-Nr: PUB / 5071285 / 000 / 00
-CAUTION-
-CAUTION-
. An interlock prevents
-CAUTION-
A high torque is experienced if the insert tool sticks while
drilling with large-diameter drill bits and hole saws.
Accordingly, use the side handle and hold the tool with
both hands (one hand on the grip and one hand on the
side handle).
7.6 Switching on and off
Should a sticking drill bit cause the motor to stall for
longer than 2–3 seconds, the tool must be switched off
in order to avoid damage to it.
1. Use the forward / reverse switch to select the direc-
tion of rotation.
2. The speed of the tool can be controlled smoothly
between zero and maximum by pressing the on / off
switch slowly.
7.7 Removing the battery (2-finger operation)
1. Press in both release buttons.
2. Pull the battery downwards out of the tool.
7.8 Fitting the battery
Use only Hilti B24/2.0 NiCd, B24/2.4 NiCd or B24/3.0
NiMH batteries.
1. Push the battery into the tool from below until it is
heard to engage.
7.9 Charging the battery
The battery cannot be charged through the belt adap-
tor.
Use only the Hilti C 7/24, C 7/36-ACS chargers.
Incorrect use may lead to electric shocks, overheating
of the battery or leakage of a caustic liquid from the bat-
tery.
Read the operating instructions for the charger before
beginning charging.
7.10 Changing the insert tool
The insert tool may become hot during
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use.
There is a risk of burning the hands.
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Wear protective gloves when chan-
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ging insert tools.
-CAUTION-