Hilti AG 500-A22 Mode D'emploi Original page 18

6.7.3 Fitting an accessory tool secured with a Kwik lock nut
CAUTION
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 (discs
etc.) can then be changed without need for additional tools (keyless system).
1. Remove the battery. → page 10
2. Clean the clamping flange and the quick-release clamping nut.
3. Fit the clamping flange onto the drive spindle.
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 lockbutton and hold it in this position.
7. Turn the accessory tool firmly by hand in a clockwise direction until the Kwik lock nut is tightened
securely and then release the spindle lockbutton.
6.7.4 Removing an accessory tool secured with a Kwik lock nut
1. Remove the battery. → page 10
CAUTION
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.
2. Press the spindle lockbutton and hold it in this position.
3. Release the Kwik lock nut by turning it counterclockwise by hand.
4. If the Kwik lock nut cannot be released by turning it by hand, use a pin wrench to turn the nut in a
counterclockwise direction.
Never use a pipe wrench! A pipe wrench could damage the Kwik lock nut.
5. Release the spindle lockbutton and remove the accessory tool.
6.7.5 Fitting a threaded accessory tool
1. Remove the battery. → page 10
2. Screw the accessory tool onto the drive spindle.
3. Press the spindle lockbutton and hold it in this position.
4. Use an open-end wrench to tighten the accessory tool securely and then release the spindle lockbutton.
6.7.6 Removing a threaded accessory tool
1. Remove the battery. → page 10
CAUTION
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.
2. Press the spindle lockbutton and hold it in this position.
3. Use an open-end wrench to release the accessory tool.
4. Release the spindle lockbutton and remove the accessory tool.
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