Hilti DAG 125-S Mode D'emploi page 34

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.
NOTE
Diamond discs must be replaced when the cutting or
grinding performance drops significantly. This generally
is the case when the segments reach a height of less
than 2 mm. Other discs must be replaced when the
cutting performance drops significantly or other parts of
the angle grinder (not the disc) come into contact with
the material you are working on. Abrasive discs generally
have to be replaced when the durability date has been
reached.
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 insert tool.
3. Screw on the clamping nut corresponding to the
type of disc fitted11.
CAUTION Do not press the spindle lockbutton
4.
before the drive spindle has stopped rotating.
Press the spindle lockbutton and hold it in this
position.
5. Use the wrench to tighten the clamping nut securely
and then release the spindle lockbutton.
6. To remove the disc from the power tool, follow the
instructions for fitting the disc but carry out the steps
in the reverse order.
6.4 Insert tool with Kwik-Lock quick-release nut
CAUTION
When operating the power tool, take care to ensure
that the Kwik-Lock nut does not come into contact
with the work surface. Do not use a damaged Kwik-
Lock nut.
NOTE
The Kwik-Lock nut can be used instead of the clamping
nut. No tools are then required for changing cutting discs.
7 Operation
NOTE
Adjust the position of the guard to suit the requirements
of the work being done.
DANGER
Wear ear protectors. Exposure to noise can cause hear-
ing loss.
6.4.1 Fitting and removing the insert tool using the
Kwik-Lock quick-release nut 12
NOTE
The arrow on the upper surface of the nut must be within
the index marks. If the arrow is not within the index marks
when the Kwik-Lock nut is tightened it will be impossible
to release the nut by hand. In this case, use the pin
wrench to release the Kwik-Lock nut (do not use a pipe
wrench!).
1. Clean the clamping flange and Kwik-Lock nut.
2. CAUTION The clamping flange is equipped with
an O-ring. If this O-ring is missing, the clamping
flange must be replaced.
Fit the clamping flange onto the drive spindle.
3. Fit the insert tool.
4. Screw the Kwik-Lock nut onto the spindle until it
contacts the grinding disc (the side with the lettering
should be visible after the nut is screwed on).
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. Turn the grinding disc firmly by hand in a clock-
wise direction until the Kwik-Lock nut is tightened
securely and then release the spindle lockbutton.
7. To remove this, follow the instructions for fitting the
module but carry out the steps in the reverse order.
6.5 Rotating the gearing section 13
NOTE
To allow the tool to be used safely and without fatigue
in all positions (e.g. on / off switch facing upwards), the
gearing section can be rotated to one of four positions at
90° intervals.
1. Clean the tool.
2. Remove the side handle from the tool.
3. Remove the four screws from the gearing section.
4. Rotate the gearing section to the desired position
without pulling it away from the tool.
5. Secure the gearing section by inserting and tighten-
ing the four screws.
6. Fit the side handle.
CAUTION
The closed side of the guard must always face the
operator.
WARNING
Test new cutting or grinding discs by allowing them
to run at maximum speed in a protected area for at
least 30 seconds.
WARNING
Do not use the power tool if it starts with a jolt.This
may be an indication that the electronic control unit is
en
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