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8/10/2015 Tractorpartsandattachments:PowershiftGearboxhttp://tractorz.blogspot.ro/2012/06/powershiftgearbox.html 1/6Descriptionandapplicationoftractorsparepartsandcomponents.MasseyFerguson,JohnDeere,CaseIH.TractorpartsandattachmentsHome Clutch Transmission Gearbox DieselEngine Frontaxle Steering Rearaxle Hydraulic BrakesTractorsplitPowershiftGearboxTheAG150andAG250Powershiftgearboxcompriseforwardandrearhousingscontainingsevenshaftsandnineclutches.Sixspeedclutchesandthreerangeclutches.Threeclutchesmustbehydraulicallyengagedinordertotransmitenginepower.ThesetransmissionsarefittedwiththeirownGerotorhydraulicpump,filter,pressureregulatingvalve,lubricatingmeteringvalveandnineproportionalsolenoidvalvestoengagetheclutches.Thesetransmissionsuseanoiltankthatiscommontothegearboxandaxleassembly.Thegearboxiscoupledtotheengineviaasplinedcouplingshaftsituatedinthetransmissionandadamperlocatedontheengineflywheel.TheAG150andAG250Powershiftgearboxhavethefollowingcharacteristics:18forwardspeeds6or8reversespeedsconstantmeshing,helicoidalgearsballandrollerbearingstoeliminateallvibrationcommonaxle/gearboxoiltankhydraulicallycontrolledmultiplateclutcheselectrohydraulicgearchanges100%modulatedgearchangesadaptationtospeedofmovementreverseshuttlecompactdesignina2parthousinghousingalsoactsasthetractorchassisbetweentheengineandrearaxleunitpressurelubricationofallclutchesselfcontrolledhydraulicpumpvibrationdamperintheengineflywheelelectronicallyprotected.TractorTransmissionPartslist(1)Forwardtransmissionhousing(2)Reartransmissionhousing(3)Locationofthefirststageshaft(4)Locationofthesecondstageshaft(5)Locationofthethirdstageshaft(6)Locationofthefourthstageshaft(7)Locationofthefifthstageshaft(8)Locationofthesixthstageshaft(9)Locationoftheseventhstageshaft(10)Inputshaftandseal(11)260psi(18bar)pressureregulatingvalve(12)Clutch2proportionalsolenoidvalveSearchSearchThisBlogDisassemblyandassemblytheOrbitrolsteeringunit(125/160cm)Removethesteeringunitfromthetractor.Placethesteeringunitinavicefittedwithplasticjaws.Takeoutthescrews(1).Carefu...TractorhydraulicsystemThehydraulicsystemoftractorisclosedcentrewithcontrolledpressureandflowrate.Itconsistsoftwoseparatesystems(highandlow...BasicDieselEnginePartsandcomponentsTheeightmajormechanicalcomponentsofthebasictractordieselenginearethefollowingparts:CylinderblockCylinderhead...CoolingandLubricationSystemsDieselEngineCoolingSystemThetractorenginecoolingsystemhasthefollowingcomponents:RadiatorWaterpumpCylinder...DanafrontaxleThismayormaynotbefittedonthetractordependingontheenginefrontaxlemodel.Thefrontaxlesmountedonthe4WDtractorsconsis...PopularPostsMFTractorSpecsMasseyFergusonTractorSpecsMasseyFergusonTractorMF1540MasseyFergusonTractorMF5470MasseyFergusonTractorMF6490MasseyFergusonTractorMF7615JCBTractorspecificationsChallengerTractorChallengerTractorSpecsChallengerTractorMT465BspecChallengerTractorMT525BspecChallengerTractorMT645DspecChallengerTractorMT955CspecCASEIHTractorSpecifications0 Maimulte Urmtorulblog Creaiblog Autentificare8/10/2015 Tractorpartsandattachments:PowershiftGearboxhttp://tractorz.blogspot.ro/2012/06/powershiftgearbox.html 2/6(13)ClutchAproportionalsolenoidvalve(14)ClutchRproportionalsolenoidvalve(15)ClutchBproportionalsolenoidvalve(16)Clutch1proportionalsolenoidvalve(17)ClutchCproportionalsolenoidvalve(18)ClutchLproportionalsolenoidvalve(19)(AG150)clutchMproportionalsolenoidvalve(AG250)clutchHproportionalsolenoidvalve(20)(AG150)clutchHproportionalsolenoidvalve(AG250)clutchMproportionalsolenoidvalve(21)130psi(9bar)pumppressureswitch(22)Enginespeedsensor(23)Forwardspeedsensor(24)Calibrationsensor(25)Temperaturesensor(26)Clutchhydraulictestport7/16plugs(27)Lubricatingpressuretestport9/16plugs(28)Pumphydraulictestportswideplugs(29)INport(inlet)ofthepumpfromthetank(30)Freereturntohousingport(31)Pumppressureoutletport(32)Pumppressureinletporttoforwardhousing(33)Oiloutletporttowardsoilcoolerandlubricatingreliefvalve(34)Returnportforoilfromoilcooler(35)Gearboxserialandmodelnumberidentificationplate.JCBTractor2155specificationJCBTractor3200specificationJCBTractor7200specificationJCBTractor8250specificationCASE105UFarmallTractorCASE120AFarmallTractorCASE125PumaTractorCASE70FarmallTractor8/10/2015 Tractorpartsandattachments:PowershiftGearboxhttp://tractorz.blogspot.ro/2012/06/powershiftgearbox.html 3/6Theenginepoweristransmittedtothe1ststageshaftthatdrivestheshaftsofthe2nd,3rdand4thstages.The1ststageshaftalsodrivestheGerotorhydraulicpumpforthegearboxandactsasthePTOinputshaft.Theshaftsofthe2ndand4thstagesactasforwardspeedswiththevariousratiosofinputspeed,whiletheshaftofthe3rdstageactsasreversewithasingleinputspeedratio.Thisallowstoobtainforwardandreversespeeds.Whenclutch1,2orRisengaged,itlockstheclutchhousingtothecorrespondingshaft.Eachclutchhousingisfittedwithapinionthatmesheswiththeothershafts(allhavingthesameratio),permittingthepowertoenterviaaclutch(1,2orR)andtoexitviaanotherclutch(A,BorC)andanothershaft.8/10/2015 Tractorpartsandattachments:PowershiftGearboxhttp://tractorz.blogspot.ro/2012/06/powershiftgearbox.html 4/6Thevariousclutchessupplysixforwardratiosandthreereverseratiostothetransmission,inaccordancewiththeinputclutches(1,2orR)oroutputclutches(A,BorC)selected.Theoutputfromspeedclutchesdirectsthepowertotheclutchoftheselectedrange(L,MorH),thusproviding18forwardspeedsand8reversespeeds.IntheNorthAmericanmarket,theelectroniccontroldoesnotpermittheengagingofthetwohighestspeeds.Otherinternationalmarketsmayauthorisethesereversespeedsinrelationtothelegislationinforceintheircountries.Vibrationdamperandcouplingshafts8/10/2015 Tractorpartsandattachments:PowershiftGearboxhttp://tractorz.blogspot.ro/2012/06/powershiftgearbox.html 5/6Partslist(36)Engineflywheel(37)LUKdamper(38)Bearing(39)Couplingshaft(40)Spring(41)Inputshaftseal(42)1ststageshaft(43)BoltTighteningtorqueM10bolt(43):6892Nm.Recommend this on Google8/10/2015 Tractorpartsandattachments:PowershiftGearboxhttp://tractorz.blogspot.ro/2012/06/powershiftgearbox.html 6/6NewerPost OlderPost HomeAwesomeInc.template.PoweredbyBlogger.