Yanmar 3JH5E Operation Manual

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Yanmar 3JH5E Operation Manual Manual pdf 21 page image

PRODUCT OVERVIEWYANMAR JH SERIESFEATURES ANDAPPLICATIONSThe JH series are four-stroke direct injectiondiesel engines equipped with liquid coolantsystems.The 3JH5E is 3-cylinder and naturallyaspirated.The 4JH5E is 4-cylinder and naturallyaspirated.The 4JH4–TE is 4-cylinder andturbocharged.The 4JH4–HTE is 4-cylinder andturbocharged with an intercooler.The engines are equipped with a marinegear or sail drive unit.These engines are designed for pleasurecraft use.It is recommended that new vessels bepropped so the engines can operate at 100to 200 rpm above the fuel stop power rpm toallow for some added weight and hullresistance.Failure to do so can lead to reduced vesselperformance, lead to increased smokelevels and cause permanent damage to yourengine.The engine must be installed correctly withcoolant lines, exhaust gas lines andelectrical wiring. Any auxiliary equipmentattached to the engine should be easy to useand accessible for service. To handle thedrive equipment, propulsion systems(including the propeller) and other onboardequipment, always observe the instructionsand cautions given in the operation manualssupplied by the shipyard and equipmentmanufacturers.The JH series engines are designed to beoperated at maximum throttle(3000 to 3200 rpm) for less than 5% of totalengine time (30 minutes out of every 10hours) and cruising speed (2800 rpm orless) for less than 90% of total engine time(9 hours out of every 10 hours).The laws of some countries may require hulland engine inspections, depending on theuse, size and cruising area of the boat. Theinstallation, fitting and surveying of thisengine all require specialized knowledgeand engineering skills. See Yanmarʼs localsubsidiary in your region or your authorizedYanmar Marine dealer or distributor.JH Series Operation Manual 15© 2009 Yanmar Marine International