Required consumable material
● Operating fluid
Required tools
● Open-end wrench,
WAF 27
● Socket key,
WAF 30
Required aids
● Collection receptacle (> 7 l)
3
4
5
2
1
Fig. 18:
Draining the operating fluid
1 Filler screw with manometer
4
Drain screw
2 O-ring
5
Collection receptacle
3 O-ring
Procedure
1. Unscrew the filler screw.
– Be careful with the O-ring.
2. Place a collection receptacle below the drain hole.
3. Unscrew the drain screw.
– Be careful with the O-ring.
4. Fully drain the operating fluid.
5. Seal the drain hole.
7.3.3 Filling up operating fluid
Cleaning by changing the operating fluid
Pfeiffer Vacuum recommends, in cases of heavy contamination with process residues,
cleaning the inside of the vacuum pump with several operating fluid changes.
Required consumables
● Operating fluid
Required tools
● Open-end wrench,
WAF 27
● Socket key,
WAF 30
Required aids
● Collection receptacle (> 7 l)
Maintenance
41/64
