Change the exhaust filter annually
Pfeiffer Vacuum recommends replacing the exhaust filter in the operating fluid separator
annually, depending on the work process and the contamination incurred during the proc-
ess.
Signs for saturation of the exhaust filter:
● higher current consumption of the motor
● increased emission of operating fluid mist at the gas outlet
● increased pressure in the operating fluid separator (pressure gage display in the red area).
7.4.1 Dismantling the exhaust filters
Prerequisites
● Vacuum pump switched off
● Vacuum pump vented to atmospheric pressure
● Vacuum pump cooled
Required tools
● Socket key,
WAF 13
● Allen key,
WAF 6
8x
1
2
4
3
5
6
7
8
Fig. 18:
Dismantling the exhaust filters
1 Separator cover plate
5
Filter unit
2 Flat seal
6
Operating fluid separator
3 Fixing bolts
7
Exhaust filter
4 Filter material
8
Clamping plate
Procedure
1. Remove the exhaust line.
2. Remove the separator cover plate.
– Pay attention to the flat seal.
3. Remove the fixing bolts inside the operating fluid separator.
4. Remove the filter material.
5. Loosen the nut from the threaded rod of the filter unit.
Maintenance
38/60