Maintenance
21
Checklist for inspec-
tion, maintenance
and overhaul
Certain repair and overhaul work should only be performed by Pfeiffer Vacuum Service
(PV). Pfeiffer Vacuum will be released from all warranty and liability claims if the required
intervals for inspection, maintenance, or overhaul are exceeded or inspection, mainte-
nance, repair or overhaul procedures are not performed properly. This also applies if re-
placement parts other than Pfeiffer Vacuum OEM replacement parts are used.
Activity
daily
as required; at
least annually
as required;
at least every
2 years
as required;
at least every
4 years
Check operating fluid level
X
Visual inspection (leak-tightness/oil leaks)
X
Check filter insert of external oil mist filter (if
existent)
X
Change filter insert of external oil mist filter (if
existent)
X
Change operating fluid
X
Cleaning the pump and renew the seals
X
Clean gas ballast valve and silencer nozzle
X
Clean the motor fan cap
X
Clean or change vacuum safety valve
X (PV)
Clean or change exhaust valves
X (PV)
Change vanes and hydraulic vane
X (PV)
Check or change coupling
X (PV)
Depending on the process, the required replacement intervals for lubricants and the intervals for inspec-
tion, maintenance and overhaul may be shorter than the guide values specified in the table. Consult with
Pfeiffer Vacuum Service if necessary.
