This Service Letter specifies the recommended maximum acceptable level of cat fines entering the engine, which is as follows:Always keep the level as low as possible and, max. at 15 ppm Al + Si at engine inlet for short periods.Some guidelines on optimal operation are also given:
This guideline summarises the required checks to investigate possible causes in case of alarms indicating improper function of the ICU.Unnecessary costs may be avoided by simple rectifying actions instead of an ICU replacement and shipping to a Wärtsilä service centre; e.g. exchange of available spare parts or a proper understanding of the alarms.Should a problem not be rectified by the described countermeasures, however, replacement of the ICU must be taken into consideration.
We refer to our Product Safety Warning Letter SL2016-614/PRP of May 2016, where we informed you about incidents reported with TSP accumulators which have suffered from breakage.
Based on the latest service experience and engine development we are pleased to issue a revised version of the Guiding Overhaul Intervals tables. The guiding overhaul intervals apply to electronically controlled ME type engines, dual fuel ME-GI type engines, and mechanically controlled MC types engines.
This service letter provides recommendations on a detailed overhaul strategy, monitoring and update of the ME specific components of MAN B&W two-stroke engines (ME/ME-C and ME-B) based on approximately 10 years of service experience.
Following an engine fire due to removed splash guards, we herewith want to draw your attention to the importance of a correct installation of splash guard facilities.
This service letter gives important information regarding development of fretting/corrosion on main bearing caps. In service, we occasionally observe fretting/corrosion between the main bearing shell and the main bearing cap on engines without main bearing temperature sensors.
The high reliability of MAN B&W engines is of key importance to MAN Diesel & Turbo, and we have therefore decided to terminate the reconditioning programme for the MPC and MPC-10.
For the engine type L16/24 we have learned that the lifetime of the fuel injection nozzle can be extended considerably by lowering the opening pressure from 450 bars to 400 bars. Based on our findings, we have updated our attached description: Data for Pressure and Tolerance 500.35.
The latest ISO marine fuel standard specifies levels of up to maximum 60 ppm Al + Si in the fuel (ISO 8217). Such a level would cause high wear compromising reliability in the combustion chamber, and so the fuel must be cleaned on board the ship before it reaches the engine.
This Service Letter specifies the recommended maximum acceptable level of cat fines entering the engine, which is as follows:Always keep the level as low as possible and, max. at 15 ppm Al + Si at engine inlet for short periods.
This service letter provides recommendations on a detailed overhaul strategy, monitoring and update of the ME specific components of MAN B&W two-stroke engines (ME/ME-C and ME-B) based on approximately 10 years of service experience
This service letter contains important information about the development of fretting marks at the assembly surfaces of the connecting rod and the marine head, and possible rework of this. The complete connecting rod consists of three different parts, upper and lower marine head parts and the connecting rod. Due to the operation forces the connections of these parts are exposed to the development of fretting that may occur over time.
This paper describes in detail the service experience of the new generation of super-long stroke S and G Mk 9 type engines. Focus will be on the cylinder condition in general and cold corrosion control in particular.
The Wartsila Sulzer RT-flex Launching the Era of Common Rail for Low Speed Engines for the Second Century of the Diesel Engine Sulzer RT-flex: A major milestone in diesel technology / 13.10.99 / HS. The electronically controlled, camshaftless common rail fuel injection system for heavy fuel operation.
Provides information and guidance concerning the cylinder lubrication of Wärtsilä 2-stroke engines.The piston running behaviour of 2-stroke engines is exhibiting an ever growing complexity. The key internal factors are the changes of operation patterns (e.g. slow steaming).
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