1_Service-letter-top

This is a collection of technical papers published by MAN Diesel & Turbo, Copenhagen/Holeby, Denmark, covering both MAN B&W two-stroke and MAN four-stroke diesel engines.

Our technical papers provide information on new engine developments and trends, service experience, important aspects of engine management and maintenance, and emissions requirements compliance and development, etc. 

If you are using Internet Explorer 8 or 9 and you are having problems opening the documents, please right-click the files to save them on your local drive. Or completely disable the ‘PDF in Browser’ setting in your Acrobat Reader.

  • Jan 06, 2017

    Publication Thumbnail
    SL2016-636
    Splash Guarding (Connections in the fuel oil and lubricating oil system)
    PDF, 245.35 KB
  • Jan 06, 2017

    Publication Thumbnail
    SL2016-635
    Fretting Marks on Connecting Rod Contact Surfaces
    PDF, 598.74 KB
  • Nov 30, 2016

    Publication Thumbnail
    SL2016-634
    Ridge Wear at Crankpin Journals
    PDF, 722.01 KB
  • Dec 07, 2016

    Publication Thumbnail
    SL2016-633
    Hard-Coated Piston Rings for Operation on Ultra-Low Sulphur Fuel Including gas and liquefied gas
    PDF, 1.49 MB
  • Dec 01, 2016

    Publication Thumbnail
    SL2016-632
    Alpha Lubricator - Service Experience
    PDF, 1.90 MB
  • Nov 11, 2016

    Publication Thumbnail
    SL2016-631
    Performance Test of the Pilot Operated Check Valves (POCVs) Updating of SL13-575/BTT
    PDF, 1.18 MB
  • Nov 09, 2016

    Publication Thumbnail
    SL2016-630
    Change-over to EAL in Propeller Servo Systems (Replacement of SL13-580/BTT)
    PDF, 184.60 KB
  • Nov 09, 2016

    Publication Thumbnail
    SL2016-629
    Temperature Range for Propeller
    PDF, 253.72 KB
  • Oct 09, 2016

    Publication Thumbnail
    SL2016-628
    Fuel Injection Valve Condition
    PDF, 1.23 MB
  • Oct 09, 2016

    Publication Thumbnail
    SL2016-627
    Tightening of Roller Guide Housing - GenSet
    PDF, 1.51 MB

All data provided on this site is for information purposes only, explicitly non-binding and subject to changes without further notice.

Unless otherwise stated, the copyright and any other rights in the contents of the Service Letters available through our website, including any images and text, are owned by MAN Diesel & Turbo.

For the avoidance of doubt, you must not adapt, edit, change, transform, publish, republish, distribute, redistribute or show in public the Service Letters (in any form or media) without the prior written consent of MAN Diesel & Turbo.

Permission is granted to:

1) download, display or print material for personal use or use within an individual organisation and for a non- commercial purpose;

2) create links to these pages;

3) reproduce short extracts provided the source is stated. 

Requests for further authorisation regarding proposed usage of the information provided should be addressed to: 

MAN Diesel & Turbo
Teglholmsgade 41
2450 Copenhagen SV
or by email to 

peterd.petersen@man.eu