Preparing maintenance
► Safely disconnect the drive motor from the mains.
► Secure the motor against switching back on.
► For maintenance work, only dismantle the vacuum pump to the extend needed.
► Dispose of used operating fluid according to applicable regulations in each case.
► When using synthetic operating fluid, please observe the associated application instructions.
► Only clean the pump parts using industrial alcohol, isopropanol or similar media.
7.2 Checklist for inspection and maintenance
Notes on maintenance intervals
Depending on the process, the required maintenance intervals may be shorter than the ref-
erence values specified in the table.
● Consult with Pfeiffer Vacuum Service about shorter maintenance intervals for extreme
loads or for specific processes.
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
described in document
Inspection
Maintenance
level 1
OI
Maintenance
level 3
Required materi-
al
Interval
daily every 6
months
Yearly
every 5
years
Inspection
● Check the operating
fluid filling level
● Check the vacuum
pump for operating
fluid leaks
■
● Clean the outside of
the pump housing
● If fitted, check and
clean the air/oil heat
exchanger
● Inspect and clean
the water cooler
■
Maintenance level 1 – Changing the operating fluid and filter
● Changing the oper-
ating fluid
● Changing the oper-
ating fluid filter
● Change the exhaust
filter
● Change the gas bal-
last valve filter if nec-
essary
■
● Operating flu-
id
● Maintenance
set level 1
● Gas ballast
filter (option-
al)
Maintenance
36/62
