Service Letters
This is a collection of Service Letters published by MAN Energy Solutions, up until 1 June 2025.
For Service Letters published after the company name change to Everllence, use this link:
https://www.everllence.com/services/offerings/marine-power/service-letters
Table of content
Download
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SL2023-736pdf, 590 KBMAN NOx sensors – for SCR and EGR
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SL2023-735pdf, 677 KBReconditioning of exhaust valve spindles
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SL2023-733pdf, 578 KBStarting air valve - Failure to close
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SL2023-732pdf, 1195 KBFees for technical assistance and advisory work.
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SL2022-731pdf, 884 KBCorrect installation of lubricating oil supply valve for the Alpha Lubricator. Non-flow cylinder oil alarm
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SL2022-730pdf, 2614 KBPrevention of crankcase explosions. The latest safety components standard
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SL2022-729pdf, 847 KBPreventive grinding of exhaust valve seats
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SL2022-728pdf, 508 KBCylinder and system oils MAN B&W low-speed two-stroke engines
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SL2022-727pdf, 772 KBRegular dp-RTV and RTV position check of SCR installations
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SL2022-726pdf, 3213 KBService experience with 2020-compliant fuels
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SL2022-725pdf, 681 KBUpdated evaluation guidelines - piston ring coating and deposit build-up on piston ring lands
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SL2022-724pdf, 873 KBInlet and exhaust valve issues when operating on low-sulphur fuels
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SL2022-723pdf, 487 KBEEXI Compliance
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SL2022-722pdf, 539 KBRunning without gas injection for prolonged periods
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SL2022-721pdf, 850 KBExcessive wear on the locking keys of crankshaft thrust bearing.
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SL2022-720pdf, 1263 KBFees for technical assistance and advisory work
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SL2021-719pdf, 687 KBCleaning of fuel injection nozzles
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SL2021-718pdf, 882 KBOverspeed incident with disintegrated flywheel ̶ Updated information
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SL2021-717pdf, 690 KBSafety during emergency repair Safety precautions
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SL2021-716pdf, 538 KBReaming of valve guide after replacement
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SL2021-715pdf, 1039 KBStarting air system Main engine and requirements to auxillary system
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SL2021-714pdf, 1222 KBLow-load operation 5% to 40% engine load
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SL2021-713pdf, 503 KBRemoval and re-installation of drive end hub on the crankshaft
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SL2021-712pdf, 2359 KBInspection of valve roller guide
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SL2021-711pdf, 326 KBNew PCU card for AT2000
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SL2021-710pdf, 6149 KBNew procedure for honing of cylinder liners
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SL2021-709pdf, 433 KBSafety screen filter
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SL2021-708pdf, 1271 KBFees for technical assistance and advisory work - MAN PrimeServ, Copenhagen
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SL2020-707pdf, 904 KBFuel leakage – from high-pressure pipes and low-pressure circulation lines
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SL2020-706pdf, 1049 KBFretting in main bearing bore (replaces SL2017-645)
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 jacob.bonelli@man-es.com
Requests of the S.E.M.T. Pielstick Service Bulletin should be addressed to:
MAN Energy Solutions France
Attention: Technical Assistance MAN PrimeServ
Avenue de Chatonay , Porte 7
BP 427
44615 Saint-Nazaire Cedex
France
or by email to primeserv.technical-france@man-es.com
MAN Energy Solutions is now Everllence.
We have adopted a new brand name and moved to a new domain: www.everllence.com. This page will also be relocated there shortly. We are working on shifting all pages to www.everllence.com.