4 Maintenance frequency and responsibilities
Maintenance level 1 and 2 operations are described in this manual.
Level 3 maintenance operations require a technician from the Pfeiffer Vacuum Service network.
Operation Number of hours in use
Level
1)
Site
2)
Diaphragm pump MVP 020-3DC
Diaphragms replacement and valves checking 15,000 hours
Every 2 years if the pump is not used
3 OS
Pump replacement As needed 3 OS
Pump AMH 020
Bearings replacement 15,000 hours
Every 2 years if the pump is not used
3 WS
Pump replacement As needed 3 OS
Analyzer cell
Seal replacement As needed 2 OS
Filament replacement As needed 2 OS
Overhaul of analyzer cell As needed 3 OS
Valves
All valves replacement 500,000 tests
Every 4 years if the pump is not used
3 OS
Electronic
Cleaning / Dusting According to conditions of use 1 OS
Purge filter
Cleaning or replacement of the purge filter According to conditions of use 2 OS
Pirani gauge
Setting According to conditions of use
Every 4,300 hours (recommended)
1 OS
Gauge replacement As needed 2 OS
Sniffer probe
Sintered filter replacement As needed 1 OS
Fan
Fan replacement As needed 2 OS
Calibrated leak
Recalibration Every 2 years (recommended) 2 WS
Leak detector
Overhaul of the detector According to conditions of use
Every 4 years (recommended)
3 OS/WS
1) Maintenance level
● 1: Operator
● 2: Technician with Pfeiffer Vacuum training
● 3: Pfeiffer Vacuum maintenance technician
2) Maintenance site
● OS: on customer site
● WS: Pfeiffer Vacuum service center
Maintenance time monitoring
The maintenance timers of the backing pump, the turbomolecular pump and the valves alert the opera-
tor that a maintenance operation must be carried out (see chapter “Timers before next maintenance” of
the operating instructions).
How to contact us
Product overhauls must be carried out by personnel with manufacturer training. Contact our
nearest service center at the following e-mail address: Pfeiffer Vacuum Service Support.
Maintenance frequency and responsibilities
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