7.2 Checklist for inspection and maintenance
Notes on maintenance intervals
The times for the maintenance intervals depend to a great extent on the process condi-
tions; they apply for working with clean and inert gases. The use of corrosive process gas-
es can substantially curtail the maintenance intervals.
● Agree shorter maintenance intervals for extreme loads or for specific processes with
Maintenance intervals
You can carry out the
inspection
yourself.
We recommend Pfeiffer Vacuum Service for carrying out maintenance work of
Mainte-
nance Level 1
and
Maintenance Level 3
(revision). If the required intervals listed below
are exceeded, or if maintenance work is carried out improperly, no warranty or liability
claims are accepted on the part of Pfeiffer Vacuum. This also applies wherever parts other
than original spare parts are used.
Action
Inspection
Maintenance
level 1
Maintenance
level 3
Required mate-
rial
described in docu-
ment
OI
Interval
Monthly
8500 h, or once
a year at the
latest
16000 h or ev-
ery 4 years
Inspection
Visual and acoustic
pump check
■
● Check the lubri-
cant level and col-
or of the lubricant
● Check vacuum
pump for leaks
■
Maintenance level 1 – replacing lubricant and filter
● Clean the outside
of the pump hous-
ing
● Cleaning the in-
take strainer
● If installed, inspect
gas ballast filter
and clean as nec-
essary
● If installed, inspect
silencer and clean
as necessary
● Clean magnetic
sealing plug
■
Suitable clean-
ing agent, com-
patible with the
process
Changing the lubricant
■
Lubricant
Check electric connec-
tions and monitoring
equipment
■
Maintenance level 3 – overhaul
General repair of vac-
uum pump
■
Contact Pfeiff-
er Vacuum Serv-
ice.
Tbl. 9:
Maintenance intervals
Maintenance
33/52
