Before Use - Hilti DCH 300 Mode D'emploi

chine, especially dust from conductive materials, may
present a risk of electric shock.
d) When working outdoors with a power tool check
to ensure that the tool is connected to the electric
supply by way of a ground fault circuit interrupter
(GFCI) with a rating of max. 30 mA (tripping cur-
rent). Use of a ground fault circuit interrupter reduces
the risk of electric shock.
e) Use of a ground fault circuit interrupter (GFCI)
with a maximum tripping current of 30 mA is
recommended.
5.4.4 Work area
Ensure that the workplace is well ventilated. Exposure
to dust at a poorly ventilated workplace may result in
damage to the health.

6 Before use

WARNING
The supply cord must be disconnected from the elec-
tric supply and the cutting disc or drive spindle must
have come to a complete stop before attempting to
change or adjust discs, parts of the tool or its acces-
sories.
CAUTION
The mains voltage must comply with the specification
given on the type identification plate. Ensure that the
power tool is disconnected from the electric supply.
CAUTION
Wear protective gloves, especially when changing
discs, adjusting the guard (hood) and when fitting the
hood extension with depth gauge.
6.1 Guard (hood)
WARNING
Never use the power tool without the guard (hood).
NOTE
If the guard (hood) clamping force is found to be inade-
quate, this can be increased by tightening the clamping
screw slightly.
6.1.1 Fitting and adjusting the guard (hood) 5
1. Disconnect the supply cord plug from the power
outlet.
2. Use the hex. socket wrench to release the clamping
screw.
3. Fit the guard (hood) onto the collar on the gearing
section.
4. Rotate the guard (hood) into the desired position.
5. Use the hex. socket wrench to tighten the clamping
screw.
5.4.5 Personal protective equipment
The user and any other persons in the vicinity must
wear ANSI Z87.1-approved eye protection, a hard
hat, ear protection, protective gloves and breathing
protection while the machine is in use.
6.1.2 Removing the guard (hood)
1. Disconnect the supply cord plug from the power
outlet.
2. Use the hex. socket wrench to release the clamping
screw.
3. Rotate the guard (hood) and pull it away from the
tool.
6.2 Depth gauge (optional)
DANGER
The hood extension with depth gauge is to be used
exclusively for cutting mineral materials with diamond
discs.
6.2.1 Fitting / removing the hood extension with
depth gauge 4
1. Disconnect the supply cord plug from the power
outlet.
2. Fit the hook over the guide wheel axle.
3. Pivot the hood extension into the hood until the
catch is heard to engage.
4. To remove the hood extension, press the catch and
pivot the hood extension down and away from the
hood.
6.2.2 Using the depth gauge to adjust cutting depth
1. Press the cutting depth sliding indicator.
2. Move the cutting depth sliding indicator to the de-
sired cutting depth.
6.3 Fitting a cutting disc
DANGER
Use only the metric-size clamping flange and the
wrench supplied with the power tool.
CAUTION
Use only cutting tools with a rated maximum permis-
sible speed which is at least as high as the machine's
highest no-load running speed.
en
9