7.2 Maintenance instructions for magnetic coupling
WARNING
Danger of injury from strong magnetic field
There is a risk of injury for people with pacemakers and medical implants.
►
Make sure that such individuals do not enter the sphere of influence (≤ 2 m) of the magnetic field.
►
Identify rooms in which magnetic couplings are openly accessible with the symbol: "No access
for people with pacemakers".
►
Always keep disassembled couplings away from computers, data carriers, and other electronic
components.
This safety note applies to drive system disassembly in pump versions with magnetic coupling.
7.3 Checklist for inspection and maintenance
Maintenance frequency and service lives
Maintenance frequency and service lives are process-dependent. Chemical and thermic
loads or contamination reduce the recommended reference values.
●
Determine the specific service lives during the first operating interval.
●
Consult with Pfeiffer Vacuum Service if you wish to reduce the maintenance frequency.
You can carry out maintenance work at Maintenance Level 1 yourself.
We recommend Pfeiffer Vacuum Service for carrying out maintenance work of Maintenance Level 2
and Maintenance Level 3 (revision). If the required intervals listed below are exceeded, or if mainte-
nance work is carried out improperly, no warranty or liability claims are accepted on the part of Pfeiffer
Vacuum. This also applies if original spare parts are not used.
Action Inspec-
tion
Mainte-
nance
level 1
Mainte-
nance
level 2
Mainte-
nance
level 3
Required
materials
Described in document OI OI MM MM
Interval daily ≤ yearly ≤ 2 years ≤ 4
years
Inspection
Visual and acoustic pump check
Check operating fluid:
● Check fill level
● Check color (contamination)
● Check vacuum pump for leaks
■
Check accessories (in accordance
with respective operating instruc-
tions)
■
Maintenance level 1 – operating fluid replacement
Clean the outside of the vacuum
pump:
● Pump housing
● Clean motor fan cap
Changing the operating fluid
■ Operating flu-
id
Maintenance
kit 1
Additional activities:
● Remove cap
● Clean inside of cap and outside
of pumping system (without
cleaning agent)
● Remove and clean gas ballast
valve, replace wearing parts
■
as re-
quired
Maintenance
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