7.5.4 Filling lubricant on the vacuum side
2
1
MAX
MIN
Fig. 32:
Filling lubricant on the vacuum side
1 Filler screw
2
Sight glass
Procedure
1. Unscrew the filler screw.
2. Fill up with lubricant according to the marks on the sight glass.
3. Screw in the filler screw.
4. Check the fill level during operation when running with final pressure.
7.6 Changing the cooling liquid
NOTICE
Property damage as a result of inadequate cooling
Inadequate cooling may cause damage to the vacuum pump.
► Only use the cooling liquid prescribed by Pfeiffer Vacuum (Zitrec M 25).
► Evacuate the cooling chambers following repairs and fill cooling liquid.
7.6.1 Draining cooling liquid
Prerequisites
● Vacuum pump switched off and cooled
● Vacuum pump vented
Required tools
● Allen key,
WAF 10
Wrench,
WAF 19
Required aids
● Collection receptacle
● Cleaning cloth
Maintenance
45/62