Maintenance Plan – VN2020

It’s a good solution to maintenance your Visatron VN2020 Oil Mist Detector system with a view to be
precautionary in relation to technical problems. This eliminates the risk of downtime of the oil mist detector
and the engine. The following table lists the maintenance cycles for the VN2020 oil mist detector.

By conducting regular maintenance, the product will have a long service life. If the maintenance intervals are not observed, the oil mist detector may fail prematurely. It is essential that you follow the given sequence for the work. NOTE: All maintenance steps should be performed while engine is stopped!


What to do:

Procedure 1 / Every 6 months


  • M1 | Clean infrared filters in measuring head and replace seal on inspection cover.
  • M2 | Exchange seal on connection box and check bellows and suspension system between measuring head and base plate for damage.
  • M3 | Exchange filter in pressure regulator and check negative pressure in measuring head.
  • M4 | Clean suction/pipe system with compressed air.
  • M5 | Functional test with smoke test to be carried out.

                                   For step-by-step guide, see the dropdown boxes below.

Procedure 2 / Every 2 years

This procedure is to be carried out by authorized service personnel only!

Main two-year service (2 years) by authorized and certificated Schaller personnel only!

  • Service and test of complete Oil Mist Detector installation incl. software check and upgrade if necessary.
  • Replacement of mayor part kit for VN2020.
  • Service certificate to be approved by authorized personnel!

                               Please contact us for authorized personnel at:

Procedure 3  / Every 4 years

This procedure is to be carried out by authorized service personnel only!

  • Replace measuring head or complete oil mist detector. NOTE: When ordering an exchange unit – always inform us about engine type!
  • Perform procedure 1 & procedure 2

                               Please contact us for authorized personnel at:

According to maker’s operation manual, an inspection of the entire OMD installation on board has to be executed by authorized service staff every 2-years or 16 000 operating hours – whatever comes first!

Your professional partner within Oil Mist Detector technology. Engine Protection Partner AS is a Schaller Automation authorized repair, sales and service centre based in Scandinavia. Headquarter for Norway, Svalbard, Jan Mayen, Faroe Islands, Aaland Islands, Sweden, Finland, Denmark, Iceland, Estonia, Latvia, Lithuania and Greenland. We are represented world-wide! Main training center for clients such engine manufactorers, the norwegian military, scandinavian maritime schools, hundreds of ship owners and more.

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