Yanmar 3JH2 Series User Manual

3JH2 Series2000. 3. 10MARINE DIESEL ENGINESERVICE MANUAL0000A0A1015-9112

1-2-23JH2 SeriesChapter 1 General1. Exterior ViewsWith KM3P1/ KM35P1Operating sideOperating side Fuel injection pumpAir intake manifoldMist separatorK

Mixing elbowIntake air silencer4-1-13JH2 seriesChapter 4 Intake and Exhaust System1. Intake and Exhaust System3JH25A/30AIntake systemPrinted in Japa

3JH2 SeriesChapter 1 General2. Specifications1-3-1Model Unit 3JH25A Vertical 4-cycle water cooled diesel engineDirect injectionNormal aspiration382×86

5-2-13JH2 seriesChapter 5 Lubrication System1. Lubrication SystemPrinted in JapanA0A1015-0302Printed in JapanA0A1015-03023JH25A/30A Lubricating oil f

5-6-13JH2 seriesChapter 5 Lubrication System3. Lube Oil FilterPrinted in JapanA0A1015-0302Printed in JapanA0A1015-03023JH25A/30ALubricating oil filte

6-3-13JH2 seriesChapter 6 Cooling Water System1. Cooling Water SystemPrinted in JapanA0A1015-0302Printed in JapanA0A1015-03023JH25A/30AMixing elbowHe

3JH2 Series1-4-1Chapter 1 General2. Specificationsmarine gearsystemModelKM3P112kgNot EqippedCone clutch2.36 / 3.1 6Clock wise0.3 / 0.350.45 / 0.5SAE

7-293JH2 seriesChapter 7 Reduction and Reversing Gear1. Construction Printed in JapanA0A1015-0302Printed in JapanA0A1015-0302Marine Gear ModelsKM3P1,

Reduction ratio No. of bladeDiameter of the propeller Moment of inertia N-m2Material3 450 1.49(0.15)2.364 4253 470 Bronze2.61 4 440 1.86(0.19

7-313JH2 seriesChapter 7 Reduction and Reversing Gear1. Construction Printed in JapanA0A1015-0302Printed in JapanA0A1015-03021-3 Power transmission

442.5 JOINT φ8 FOR FO RETURNJOINT φ8 FOR FO INLET28.8701.3730.1180.6183.8AHEADASTERN309.1MIXING ELBOW PT 11/4237.568033.531.56.54.5SOLE PLATE543278 26

7-413JH2 seriesChapter 7 Reduction and Reversing Gear3. Inspection and Servicing Printed in JapanA0A1015-0302Printed in JapanA0A1015-0302NOTE : When

series

9-4-13JH2 seriesChapter 9 Electrical System1. Electrical SystemPrinted in JapanA0A1015-0302Printed in JapanA0A1015-03023JH25A/30ATacho with Hour mete

1-11-13JH2 seriesChapter 1 General4. Performance Curves3JH25A Performance CurveCrankshaft speed (min-1)Specific fuel consumptionSpecific fuel consumpt

1-11-23JH2 seriesChapter 1 General4. Performance Curves3JH30A Performance CurveCrankshaft speed (min-1)Specific fuel consumptionExhaust Gas Temp.Prope

PT1 1/44520φ53EXH. GASDETAIL OF PART BA WATER1-14-13JH2 seriesChapter 1 General5. Piping Diagrams3JH25A/30AMarks of PIPING NAME RUBBER HOSESTEEL PI

Publication No. A0A1015Page No 1Manual NameService Manual for Marine Diesel EngineHistory of RevisionEngine Model :3JH2 seriesNumber ofrevisionReas

CONTENTSCHAPTER 1 GENERAL1.Exterior Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12.Specifications . . . . . . . . . . . . . .

Printed in JapanA0A1015-03023-1-1Printed in JapanA0A1015-03023JH2 seriesChapter 3 Fuel Injection Equipment1. Fuel Injection Pump Service DataItemEngi

1-2-13JH2 SeriesChapter 1 General1. Exterior Views1-3 3JH25A/30AWith KM3P3Operating sideOperating side Fuel injection pumpAir intake manifoldMist se