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  Purifiers Problems -Trouble shooting 1)      What to do if treated oil flows through water side?  Ans) i) Check the size of the gravity disc and fit it as per mentioned in the nomograph          ii) Incorrect treated oil temperature.         iii) Check o rings           2)      What is a nomograph? Ans)  It is a graph by which you can select correct gravity disc for the purifier          It is available on internet or you may find it the ship’s purifier instruction manual. 3)    Why treated oil flows out through sludge outlet? Ans) Following reasons could lead to treated oil flowing through sludge outlet. Drop in purifier rotating speed i)    Worn friction blocks/pads ii)   Reduced voltage supply to electric motor   ...
  Diesel Generators Trouble shooting  Why engine unable to start on air? Ans)     Air bottle start air valve not opened              Air bottle pressure very less              Start air interlock activated              i)  Low lub oil pressure             ii)  Flywheel turning rod not kept in place            iii)  over speed trip activated and not reset             Start air motor defective or Start air valves defective             Or Start air distributor defective Why engine not turning on fuel? Ans)    Fuel line valv...
  FRESH WATER GENERATOR TROUBLE SHOOTING  Why no vacuum or less vacuum? Ans)      Ejector pump not running              Ejector pump filter dirty               Ejector pump /motor coupling bolts sheared off               Air ejector defective               Vaccum gauge defective               Shell cover leaking                   Why FWG salinity high alarm?             Brine ejector defective             Fouled  salinity indic...
                                    MAIN ENGINE TROUBLE SHOOTING Why Engine not starting on air? Ans)    No control air/ starting air            Automatic start air valve is in shut position            Air distributor valve stuck            Turning gear Interlock activated    Why engine fail to run on fuel after starting on air? Ans)    Fuel viscosity high            Fuel injector defective            Insufficient fuel oil pressure             Incorrect fuel pump timing            Fuel ...