Before Use - Hilti DC-EX 230/9 Manual De Instrucciones

Do not "jam" the diamond wheel or apply excess-
f)
ive pressure. Do not attempt to make an excessive
depth of cut. Overstressing the diamond wheel in-
creases the loading and susceptibility to twisting or
binding of the wheel in the cut and the possibility of
kickback or wheel breakage.
g) When the diamond wheel is binding or when inter-
rupting a cut for any reason, switch off the power
tool and hold the power tool motionless until the
wheel comes to a complete stop. Never attempt to
remove the diamond wheel from the cut while the
wheel is in motion otherwise kickback may occur.
Investigate and take corrective action to eliminate the
cause of wheel binding.
h) Do not restart the cutting operation in the work-
piece. Let the diamond wheel reach full speed
and carefully reenter the cut. The diamond wheel

6 Before use

DANGER
Always disconnect the supply cord from the elec-
tric supply when the power tool is not in use (e.g.
during breaks between working), before making ad-
justments, before carrying out care and maintenance
and before changing core bits. This safety precaution
prevents the power tool starting unintentionally.
6.1 Fitting the cutting guard to the power tool 2
1. Release the clamping lever on the power tool.
2. Fit the guard onto the drive spindle collar so that the
specially-shaped locating lug engages in the recess
in the mounting flange on the power tool.
3. The guard can be adjusted to the desired working
position by pivoting it in a counterclockwise direc-
tion.
4. Close the clamping lever and check that the cutting
guard is securely attached to the power tool.
5. Fit the hose connector to the connecting point on
the guard.
6.2 Opening the cutting guard 3
1. Push back the depth gauge locking lever.
2. Pivot the lower section / extension down and away
from the guard.
3. The guard lower section / extension can then be
disengaged from the pivot point.
6.3 Fitting diamond cutting discs
DANGER
Check that the speed rating printed on the cutting
or grinding disc is equal to or higher than the rated
speed of the power tool.
DANGER
Check the condition of the grinding disc before us-
ing it. Do not use discs that are broken, cracked or
damaged in any way.
may bind, walk up or kick back if the power tool is
restarted in the workpiece.
i) Support panels or any oversized workpiece to
minimize the risk of the diamond wheel pinching
and kickback. Large workpieces tend to sag under
their own weight. Supports must be placed under the
workpiece near the line of cut and near the edge of
the workpiece on both sides of the wheel.
j) Use extra caution when making a "pocket cut"
into existing walls or other blind areas. The pro-
truding diamond wheel may cut gas or water pipes,
electrical wiring or objects that can cause kickback.
5.2.3 Service
Have your power tool serviced by a qualified repair
person using only identical replacement parts. This
will ensure that the safety of the power tool is maintained.
6.3.1 Fitting diamond discs to the DCG 230‑D and
DAG 230‑D 4
CAUTION The clamping flange is equipped with
1.
an O-ring. If this O-ring is missing, the clamping
flange must be replaced.
Fit the clamping flange onto the drive spindle.
2. Fit the spacing flange onto the clamping flange on
the drive spindle.
3. Fit the diamond cutting disc according to the spe-
cified direction of rotation (observe the direction-of-
rotation arrow).
4. Screw on the clamping nut or the Kwik-Lock nut
until it is seated against the disc.
5. CAUTION Do not press the spindle lockbutton
before the drive spindle has stopped rotating.
Press the spindle lockbutton and hold it in this
position.
6. Use the wrench to tighten the clamping nut or,
respectively, rotate the cutting disc firmly by hand
in a clockwise direction until the Kwik‑Lock nut is
tight, and then release the spindle lockbutton.
7. Close the guard by engaging the lower section / ex-
tension at the pivot point, moving the depth gauge
locking lever back and pushing in the guard exten-
sion until the desired cutting depth is set.
6.3.2 Fitting diamond cutting discs to the
DCG 230‑DB 5
1. Fit the spacing flange onto the mounting flange on
the drive spindle.
2. Fit the diamond cutting disc according to the spe-
cified direction of rotation (observe the direction-of-
rotation arrow).
3. Screw on the Kwik-Lock nut until it is seated against
the disc.
en
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