Hilti DCG125-S Mode D'emploi page 33

6.4 Using the Kwik-Lock clamping nut with
grinding / cutting discs
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.
en
NOTE
The Kwik-Lock nut can be used instead of the clamping
nut. No tools are then required for changing cutting discs.
NOTE
The Kwik-Lock nut cannot be used with cup wheels,
brushes, rubber backing pads, tuck pointing discs (spe-
cial discs used for joint repair) or with diamond cup
wheels.
6.4.1 Fitting grinding / cutting discs using the
Kwik-Lock clamping nut 9
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. Disconnect the supply cord plug from the power
outlet.
2. Clean the clamping flange and Kwik-Lock nut.
3. 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.
4. Fit the diamond disc, cutting disc or grinding disc.
7 Operation
DANGER
Wear ear protectors. Exposure to noise can cause hear-
ing loss.
WARNING
Do not use the power tool if it starts with a jolt.This
may be an indication that the electronic control unit is
defective. Have the tool repaired at an authorized Hilti
service center right away.
28
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5.
6.
7.
6.4.2 Removing grinding / cutting discs secured
1.
2.
3.
6.5 Rotating the gearing section 10
NOTE
To allow the power 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.
2.
3.
4.
5.
6.
7.
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
Slits cut in loadbearing walls of buildings or other struc-
tures may influence the statics of the structure, especially
when steel reinforcing bars or load-bearing components
are cut through. Consult the structural engineer, ar-
chitect, or person in charge of the building project
before beginning the work.
Screw the Kwik-Lock nut onto the spindle until it
contacts the disc (the side with the lettering should
be visible after the nut is screwed on).
CAUTION Do not press the spindle lockbutton
before the drive spindle has stopped rotating.
Press the spindle lockbutton and hold it in this
position.
Turn the grinding disc firmly by hand in a clock-
wise direction until the Kwick-Lock nut is tightened
securely and then release the spindle lockbutton.
with the Kwik-Lock nut
Disconnect the supply cord plug from the power
outlet.
Press the spindle lockbutton and hold it in this
position.
Release the Kwik-Lock nut by turning the knurled
ring in a counter-clockwise direction. (Use the pin
wrench to release the Kwik‐Lock nut if very tight. Do
not use a pipe wrench.)
Disconnect the supply cord plug from the power
outlet.
Clean the power tool.
Remove the side handle from the power tool.
Remove the four screws from the gearing section.
Rotate the gearing section to the desired position
without pulling it away from the power tool.
Secure the gearing section by inserting and tighten-
ing the four screws.
Fit the side handle.