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 mate-
rial
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, clean the
gas ballast valve fil-
ter
● If fitted, check and
clean the air/oil heat
exchanger
■
Maintenance Level 1 – operating fluid and filter change
● Changing the oper-
ating fluid
● Changing the oper-
ating fluid filter
● Changing the ex-
haust filter
■
● Operating
fluid
● Maintenance
set level 1
Maintenance Level 3 – overhaul including changing all wear parts
● Change the bear-
ings, seals and
valves
● Vane change, op-
tional
■
Contact Pfeiff-
er Vacuum Serv-
ice.
● Set of vanes,
optional
● Overhaul kit
Tbl. 11:
Maintenance intervals
Maintenance
40/70
