Hilti AG 230-27DB Original Operating Instructions page 29

Note
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. Disconnect the supply cord plug from the power outlet.
2. Clean the clamping flange and the quick-release 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 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 arbor 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 arbor lockbutton.
6.4.4 Removing an accessory tool secured with a Kwik lock nut
1. Disconnect the mains 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 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.
Note
Never use a pipe wrench! A pipe wrench could damage the Kwik lock nut.
5. Release the arbor lockbutton and remove the accessory tool.
6.5 Adjusting the side handle
WARNING
Risk of injury. If the grip position is adjusted while the tool is in operation it is no longer possible to
hold the tool in a stable position, resulting in a risk of accident.
▶ Do not, under any circumstances, attempt to adjust the grip while the tool is running.
▶ Check to ensure that the grip is engaged in one of the three possible positions.
1. Disconnect the supply cord plug from the power outlet.
2. Press the unlocking button.
3. Pivot the grip to the left or right as far as it will go.
4. Release the unlock button and move the grip until it engages in position.
6.6 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.
Printed: 26.09.2017 | Doc-Nr: PUB / 5376157 / 000 / 00
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