Hilti AG 500-A22, Operator'S Manual, Page: 19 / 24

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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.
Note
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 13
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 13
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 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.
7 Operation
7.1 Grinding
CAUTION
Risk of injury. The accessory tool may suddenly stick or stall.
▶
Use the power tool with the side handle (or optional hoop grip) fitted and always hold the power
tool securely with both hands.
7.2 Cutting
▶ When cutting, apply moderate feed pressure and do not tilt the power tool or the cutting disc (when
working, hold at approx. 90° to the surface being cut).
Note
For best results when cutting profiles and square tube, start cutting at the smallest cross section.
7.3 Rough grinding
CAUTION
Risk of injury. The abrasive cutting disc could shatter and flying fragments may cause injury.
▶
Never use abrasive cutting discs for grinding.
▶ Move the power tool to and fro while maintaining a 5° to 30° angle of attack and applying moderate
pressure.
◁
This will avoid overheating and discoloration of the workpiece and help ensure an even surface finish.
7.4 Switching on (tool equipped with switch-on safety interlock)
Note
The on / off switch with safety lock (switch-on interlock) gives you full control of the switch function
and avoids unintentional starting.
Printed: 26.01.2017 | Doc-Nr: PUB / 5292879 / 000 / 00 Printed: 26.01.2017 | Doc-Nr: PUB / 5292879 / 000 / 01