PPT_2108_001_01 变桨位置演示课件.ppt

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1、HydraulicsTroubleshootingServiceTrainingApproval:PNOHydraulicstroubleshootingWorkprecautionsSafetyprecautionsduringworkWorkprecautionsStopthepumpmotorbypushinganemergencystopbutton.Draintheaccumulatorsinthepartofthesystemthatyouareworkingon.Donotusetoolstocloseneedlevalves.Tools

2、maydamagethevalveanditmaybeimpossibletoopenthevalvelater.NeveradjustvalvesorpressureswitcheswithoutpermissionfromtheVestasservicedepartment.Thecomponentsareadjustedfromfactory.Whenusingatesthose:Firstconnectanexternalpressuregaugetothehose.Thenconnecttheotherendofthehosetothetes

3、tconnector.Itisthenpossibletoseeifthereishighpressureonthetestconnector.Beforedisassemblyofpartsinthehydraulicsystem:CleanlinessduringworkWorkprecautionsNeverplacedisassembledpartsonthefloororotherdirtyplaces.Sealorplugoffanyopenorificeinthesystem.Beabsolutelysurethatcontaminant

4、sarenotaddedtothesystemoilduringwork.Payspecialattentiontopaintflakesorcorrosionparticles.Wipeoffanyspilledoilafterwork.Makesuretokeepthesystemcleanduringwork:HydraulicstroubleshootingDrainingaccumulatorsDrainingpumpsystemaccumulatorsDrainingaccumulatorsDrainaccumulators(1Z14)an

5、d(3Z2)……byuseofvalve(1V8)DrainingpitchsystemaccumulatorsDrainingaccumulatorsDrainaccumulators(1Z14)and(3Z2)byuseofvalve(1V8).Openneedlevalve(1V3)toremovebackpressure.Whenallpressureisrelievedthenopenballvalve(1V9)andneedlevalve(3V3)toensureallpressureisgone.Drainaccumulator(5Z1)

6、byopeningneedlevalve(5V1)ontheactualpitchblock.Relievetheremainingpressurebyconnectingatesthosetothetestconnector(4T3)ontheactualpitchblock.111332445HydraulicstroubleshootingSourcesoffaultsFaultstatisticsSourcesoffaults70%10%10%5%5%HydraulicstroubleshootingProportionalvalvePitch

7、controldiagramProportionalvalveMenu23–testno.5ProportionalvalvePress’5’and’Enter’ThecursormovestoControlRefThesignalssenttothevalvemustbecontrolledwhentroubleshootingMenu23–test5canbeusedforthatpurpose.Testvaluesareenteredintest5Testno.5TestanaloguemoduleProportionalvalveTypeany

8、controlvoltagebetween-10VDCand+10VDCintotest5.A