Service Letters
This is a collection of service letters published by MAN Energy Solutions, Copenhagen/Holeby, Denmark, covering both MAN B&W two-stroke and MAN four-stroke combustion engines.
Our service letters provide information on new engine developments and trends, service experience, important aspects of engine management and maintenance, and emissions requirements compliance and development, etc.
Table of content
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SL2023-734pdf, 811 KBLocal monitoring control and safety, LMCS base module 2 replacement.
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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)
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SL2020-705pdf, 653 KBLoad-up program Update of load-up recommendations in SL09-503/JAP
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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.
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2450 Copenhagen SV
or by email to jacob.bonelli@man-es.com