Hilti NURON AG 6D-22-5 Mode D'emploi page 23

Diamond wheels must be replaced when their cutting or grinding performance drops significantly. This
generally is the case when the segments reach a height of less than 1/16".
Other wheels must be replaced when their cutting performance drops significantly or other parts of
the angle grinder (not the wheel) come into contact with the material you are working on.
Abrasive wheels must be replaced when their expiry date has been reached.
6.9.1 Installing accessory tool
1. Clean the clamping flange and the clamping nut.
2. Check that the O-ring is in place in the clamping flange and that it is undamaged.
▶ Replace the O-ring if it is missing or damaged.
3. Fit the clamping flange on to the spindle (keyed fit to prevent slipping and rotation).
4. Fit the accessory tool.
5. Screw on the clamping nut corresponding to the type of accessory tool fitted.
6. Press the spindle lock button and hold it in this position.
7. Use the pin wrench to tighten the clamping nut securely, then release the spindle lock button and remove
the wrench.
6.9.2 Removing accessory tool
WARNING
Risk of breakage and irreparable damage. If the spindle lockbutton is pressed while the spindle is
rotating, the accessory tool can detach from the power tool.
▶ Press the spindle lockbutton only when the spindle has stopped rotating.
1. Press and hold down the spindle lock button.
2. Release the clamping nut by gripping it with the pin wrench and turning the wrench counter-clockwise.
3. Release the spindle lock button and remove the accessory tool.
6.9.3 Fitting an accessory tool secured with a Kwik lock nut
WARNING
Risk of breakage. Heavy wear (abrasion) may cause the Kwik lock nut to break.
▶ When working with the power tool, make sure that the Kwik lock nut doesn't come into contact with the
working surface.
▶ Do not use a damaged Kwik lock nut.
The optional Kwik lock nut can be used instead of the standard clamping nut. Accessory tools (wheels
etc.) can then be changed without need for additional tools (keyless system).
1. Clean the clamping flange and the quick-release clamping nut.
2. Check that the O-ring is in place in the clamping flange and that it is undamaged.
▶ Replace the O-ring if it is missing or damaged.
3. Fit the clamping flange on to the spindle (keyed fit to prevent slipping and rotation).
4. Fit the accessory tool.
5. Screw on the Kwik lock nut until it is seated against the accessory tool.
▶ The name Kwik lock should be visible when the nut is screwed on.
6. Press the spindle lock button and hold it in this position.
7. Firmly turn the accessory tool clockwise by hand until the Kwik lock nut is tightened securely and then
release the spindle lock button.
6.9.4 Removing Kwik lock
If the Kwik lock quick-release lock nut cannot be released by turning it by hand, use a pin wrench to
turn the nut counter-clockwise.
Never use a pipe wrench or an adjustable wrench of any kind. Use of the wrong tool can damage the
Kwik lock quick-release lock nut.
1. Press and hold down the spindle lock button.
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