Hilti AG 230-27DB Original Operating Instructions page 28

6.3.2 Adjusting the guard or guard with cover plate
1. Release the clamping lever.
2. Rotate the guard to the required position.
3. Secure the guard by closing the clamping lever.
6.3.3 Removing the guard
1. Release the clamping lever.
2. Rotate the guard until the keyed locating lug is aligned with the keyed locating groove and then remove
the guard.
6.4 Fitting and removing accessory tools
CAUTION
Risk of injury. The accessory tool may be hot.
▶ Wear protective gloves when changing the accessory tool.
Note
Diamond discs must be replaced when their cutting or grinding performance drops significantly. This
generally is the case when the diamond segments reach a height of less than 2 mm (1/16").
Other discs must be replaced when their 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 must be replaced when their expiry date has been reached.
6.4.1 Fitting an accessory tool
1. Disconnect the supply cord plug from the power outlet.
2. Clean the clamping flange and the clamping nut.
3. Check that the O-ring is in place in the clamping flange and that it is undamaged.
Result
The O-ring is damaged.
There is no O-ring in the clamping flange.
▶ Replace the O-ring.
4. Fit the accessory tool.
5. Screw on the clamping nut corresponding to the type of accessory tool fitted.
6. Press and hold down the arbor lockbutton.
7. Use the pin wrench to tighten the clamping nut securely, then release the arbor lockbutton and remove
the wrench.
6.4.2 Removing the accessory tool
1. Disconnect the supply cord plug from the power outlet.
CAUTION
Risk of breakage and irreparable damage. If the spindle lockbutton is pressed while the spindle is
rotating, this may cause the accessory tool to work loose or detach from the power tool.
▶ Press the spindle lockbutton only when the spindle has stopped rotating.
2. Press the arbor lockbutton and hold it in this position.
3. Release the clamping nut by gripping it with the pin wrench and turning the nut counterclockwise.
4. Release the arbor lockbutton and remove the accessory tool.
6.4.3 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.
22 English
Printed: 26.09.2017 | Doc-Nr: PUB / 5376157 / 000 / 00
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