L27/38
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Products services portfolio Retrofit & upgrade Four-stroke GenSet solutions

MAN PrimeServ Retrofit & Upgrade Optimized equipment Your partners for retrofit solutions Reliability, enhanced efficiency and compliance with new environmental legislation are just a few of the benefits that our advanced retrofit solutions provide. Keeping your equipment consistently up-to-date Your existing GenSet engines and control systems might be aging, but that does not mean they cannot continue to deliver value. Our comprehensive, tailored retrofit solutions will keep your assets up-to-date through continuous development and modernization. The MAN PrimeServ retrofits and upgrades...

MAN PrimeServ Retrofit & Upgrade Lube oil optimization Fuel oil savings Operational improvement Lube oil optimization Product overview Lube oil centrifugal filter 06 MAN EcoCam 06 Safety MAN EcoNozzle & reliability 08–17 07 Turbocharger Cut-Out 08 Engine specific study 09 08 Multifunction monitoring system Electronic PMI Auto-tuning overspeed protection 10 Engine PMI ACCo control box replacement 12 11 PMI VIT 12 Safety system PLC upgrade replacement 14 PMI Offline 13 Speed converter upgrade replacement 16 Charge air preheater 18 ACOM 14 Fuel system pressure pulsation damper 20 Alpha...

MAN PrimeServ Retrofit & Upgrade Lube oil centrifugal filter Installing the Lube oil centrifugal filter as an in-line filter will remove contaminants and small solid particles from the lubricating oil. MAN GenSet engines have brought value to owners of power plants and vessels for many years. GenSet engines built two or more decades ago continue to deliver value today. However, contaminants in the lubricating oil can in some cases lead to soot formation, which contributes to engine component wear as well as increasing the viscosity of the lubricating oil. An effective filter is key to...

MAN PrimeServ Retrofit & Upgrade Safety & reliability Multifunction monitoring system The Multifunction monitoring system provides temperature monitoring to protect against main bearing failure. Protect bearings with data-driven predictive maintenance Key benefits MAN GenSet engines have brought value to owners of power plants and vessels for many years. GenSet engines built two or more decades ago continue to deliver value today. However, changes in the composition of the fuel oil mean that more particles are carried over to the lubricating oil, and catalytic (cat) fines cause abrasive...

MAN PrimeServ Retrofit & Upgrade Safety & reliability Electronic overspeed protection The Electronic overspeed protection supplements the mechanical overspeed device to ensure efficient engine speed monitoring and engine shutdown in case of overspeed. Protect GenSet from uncontrolled overspeed Key benefits Service Letter SL2020-702 published in 2020 emphasized that the overspeed system must be tested according to classification society rules and the safety precautions in the instruction manual. However, from time to time, MAN PrimeServ still encounters engines of the types L23/30H and...

MAN PrimeServ Retrofit & Upgrade Safety & reliability Engine control box replacement The Engine control box updates the original relay box for the control system due to technological advancements. This leads to higher operational reliability and safer engine operation. MAN GenSet engines have brought value to owners of power plants and vessels for many years. GenSet engines built two or more decades ago continue to deliver value today. As part of the continuous development of our engines and availability of new electronic technology, MAN PrimeServ has introduced an new control box, which...

MAN PrimeServ Retrofit & Upgrade Safety & reliability Safety system PLC replacement With a Safety system PLC replacement, MAN PrimeServ fully updates the original system PLCs with Siemens S7 PLCs. Strengthen operational reliability Key benefits MAN GenSet engines have brought value to owners and operators for many years. GenSet engines built two or more decades ago continue to deliver value today. However, some safety system PLCs (programmable logic controllers) are not produced anymore, and spare parts are either unavailable or can be hard to find. If the safety system fails, the vessel...

MAN PrimeServ Retrofit & Upgrade Safety & reliability Speed converter replacement The Speed converter replacement takes over the original Deuta werke tacho converter for monitoring speed through a sensor and displaying it on the tachometers. MAN GenSet engines have brought value to owners of power plants and vessels for many years. GenSet engines built two or more decades ago continue to deliver value today. However, some electronic equipment is no longer produced, and spare parts are not available. One example is the Deuta werke tacho converter. If it fails, the vessel crew or power plant...

MAN PrimeServ Retrofit & Upgrade Operational improvement Improve performance during low-load operation The Charge air preheater lowers the charge air cooling to reduce soot accumulation during low-load operation. MAN GenSet engines have brought value to owners of power plants and vessels for many years. GenSet engines built two or more decades ago continue to deliver value today. However, to comply with emission limits and to save fuel, it has become necessary to run the GenSet engines at low load more often, even though the changed usage pattern causes poor combustion, leading to internal...

MAN PrimeServ Retrofit & Upgrade Operational improvement Fuel system pressure pulsation damper The Fuel system pressure pulsation damper relieves pulsation vibrations in the fuel system to increase the lifetime of pressure sensors and manometers and prevent pipe leakages. Prolong TBOs and engine components lifetime Key benefits MAN GenSet engines have brought value to owners of power plants and vessels for many years. GenSet engines built two or more decades ago continue to deliver value today. However, for some of the L21/31 and L27/38 engines, the fuel is delivered through relatively...