1_Service-letter-top

This is a collection of technical papers published by MAN Energy Solutions, 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.

  • Nov 13, 2019

    Publication Thumbnail
    SL2019-684
    Piston cleaning ring Update of the instruction for piston cleaning ring replacement
    PDF, 909.10 KB
  • Nov 05, 2019

    Publication Thumbnail
    SL2019-682
    New recommendation for grinding angle of exhaust valve spindle
    PDF, 607.87 KB
  • Sep 23, 2019

    Publication Thumbnail
    SL2019-681
    Guiding overhaul intervals - replaces SL2017-650/SRJ
    PDF, 1023.61 KB
  • Aug 27, 2019

    Publication Thumbnail
    SL2019-680
    Hydraulic tightening pressure for connecting rod
    PDF, 248.23 KB
  • Aug 19, 2019

    Publication Thumbnail
    SL2019-679
    Propeller Maintenance Concept
    PDF, 806.29 KB
  • Aug 27, 2019

    Publication Thumbnail
    SL2019-678
    Check of wiring for actuator
    PDF, 411.12 KB
  • Aug 19, 2019

    Publication Thumbnail
    SL2019-677
    Sulphur corrosion package
    PDF, 1.82 MB
  • Aug 19, 2019

    Publication Thumbnail
    SL2019-676
    Preparation for 2020 fuels
    PDF, 1.51 MB
  • Jul 29, 2019

    Publication Thumbnail
    SL2019-675
    Insulation of indicator cock
    PDF, 613.03 KB
  • Jul 29, 2019

    Publication Thumbnail
    SL2019-674
    Fuel tank cleaning - Supplement to SL2019-670
    PDF, 670.17 KB

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 Energy Solutions.

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 Energy Solutions.

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 Energy Solutions
Teglholmsgade 41
2450 Copenhagen SV
or by email to 

peterd.petersen@man-es.com