Sirona Dental Systems GmbH
59 64 171 D3355
1
1
3.8
Improving the return air pressure
Note for the service engineer:
If return air removal through the hose nut or hose is insuffi-
cient, the highspeed handpiece cannot operate at its maxi-
mum level.
In this case, you can check the pressures after unscrewing
the highspeed handpiece from the hose and removing the
two Allen screws (1).
The return air may escape at the back end of the handpiece
now.
3 Care and maintenance
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