Hilti AG 125-15DB Mode D'emploi Original page 30

6.2.1 Installing the guard
The guard is keyed to ensure that only guards of a type suitable for use with the product can be
installed. The keyed locating lug also prevents the guard from coming into contact with the tool.
1. Fit the guard on to the arbor collar so that the two triangular marks on the guard and on the product are
in alignment.
2. Press the guard on to the drive spindle collar.
3. Press the guard release button and turn the guard until it engages in the desired position.
◁ The guard release button jumps back.
6.2.2 Adjusting the guard
▶ Press the guard release button and then rotate the guard until it engages in the desired position.
6.2.3 Removing the guard
1. Press the guard release button and turn the guard until the triangular marks on the guard and on the
product are in alignment.
2. Lift off the guard.
6.3 Fitting or removing the front cover
1. Position the front cover with the closed side on the standard guard and push it on until it engages.
2. To remove it, release the catch for the front cover and then lift the front cover away from the standard
guard.
6.4 Fitting or removing the discs
CAUTION
Risk of injury. The accessory tool may be hot.
▶ Wear protective gloves when changing the accessory tool.
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 the grinding disc
1. Disconnect the mains plug from the power outlet.
2. 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.
▶ Fit a new clamping flange with O-ring.
3. Fit the clamping flange onto the drive spindle.
4. Fit the grinding disc.
5. Screw on the clamping nut corresponding to the type of accessory tool fitted.
6. Press the spindle lockbutton and hold it in this position.
7. Use the pin wrench to tighten the clamping nut securely, then release the spindle lockbutton and remove
the wrench.
6.4.2 Removing the grinding disc
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.
24 English
5
6
7
8
2143515
*2143515*