Dentsply Sirona
Operating Instructions CEREC Primemill
7 Service
7.2 Changing filter bags and HEPA filters
67 19 681 D3439
D3439.201.01.01.02 09.2019
49
Changing HEPA filters
After every fourth filter bag change, the touch display automatically
displays a notification to replace the HEPA filter. This number may differ
depending on the amount of zirconium oxide materials milled and
suctioned. If the HEPA filter is full before the notification, the touch
display might display a warning at low pressure, meaning that the HEPA
filter needs to be replaced.
The HEPA filter is located behind the filter bag.
NOTE
Replace the HEPA filter if suction power is still weak after replacing
the filter bag.
1.
Loosen the two knurled nuts (A) on the maintenance cover.
2.
Remove the lid.
3.
Remove the filter bag from the nozzle.
4.
Unscrew the two Phillips screws on the perforated sheet on the
inside of the suction system.
