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1、Lesson8OperationandMaintenanceofMainEngine第8课主机的运行与养护OperatingProcedures操作程序Medium-speedandslow-speeddieselengineswillfollowafairlysimilarprocedureforstartingandmanoeuvring.中、低速柴油机的起动和操作的程序完全相似。Wherereversinggearboxesorcontrollable-pitchpropellersareusedthenenginereversingi
2、snotnecessary.当采用可换向减速齿轮箱或变距桨时主机不必逆转。Ageneralprocedureisnowgivenforengineoperationwhichdetailsthemainpointsintheircorrectsequence.如下给出的为主机正确操作程序的要点。Whereamanufacturer'sinstructionbookisavailablethisshouldbeconsultedandused.当有厂家说明书时,应参照说明书。Preparationsforstandby备车1.Beforeala
3、rgedieselisstarteditmustbewarmedthroughbycirculatinghotwaterthroughthejackets,etc.Thiswillenablethevariousenginepartstoexpandinrelationtooneanother.1.在主机起动前,应通过在缸套中循环的热水对主机进行暖机,以使主机各部分相对膨胀。2.Thevarioussupplytanks,filters,valvesanddrainsarealltobechecked.2.检查各补给柜、滤器、阀件,并放残。3
4、.Thelubricatingoilpumpsandcirculatingwaterpumpsarestartedandallthevisiblereturnsshouldbeobserved.3.起动滑油泵、循环水泵,并观察回流情况。4.Allcontrolequipmentandalarmsshouldbeexaminedforcorrectoperation.4.检查所有控制设备和报警装置是否工作正常。5.Theindicatorcocksareopened,theturninggearengagedandtheengineturned
5、throughseveralcompleterevolutions5.打开示功旋塞,合上盘车机,转动主机几转Inthiswayanywaterwhichmayhavecollectedinthecylinderswillbeforcedout.如果气缸中有水将会被排出。6.Thefueloilsystemischeckedandcirculatedwithhotoil.6检查燃油系统,并用热油对系统进行循环。7.Auxiliaryscavengeblowers,ifmanuallyoperated,shouldbestarted.7.如果辅助
6、扫气泵为手动起动,应将其起动。8.Theturninggearisremovedandifpossibletheengineshouldbeturnedoveronairbeforeclosingtheindicatorcocks,8.脱开盘车机,如果可能,在关闭示功旋塞前,应使用空气转动主机。9.Theengineisnowavailableforstandby.9.主机现在已备好。Thelengthoftimeinvolvedinthesepreparationswilldependuponthesizeoftheengine.备车时间的
7、长短取决于主机的尺寸。Enginestarting起动1.Thedirectionhandleispositionedaheadorastern.Thishandlemaybebuiltintothetelegraphreplylever.1.将转向手柄置于正车或倒车位置(转向手柄可与车钟手柄做成一体)Thecamshaftisthuspositionedrelativetothecrankshafttooperatethevariouscamsforfuelinjection,valveoperation,etc.此时,凸轮轴相对曲轴处于某
8、位置以转动用于燃油喷射、气阀启闭的各种凸轮。2.Themanoeuvringhandleismovedto"start".Thiswilladmitcompress
