GMN 5239TP-2002 Global Abstract Data Model for Common Test Procedures (GADM CTP)

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1、NorthAmericanENGINEERINGTestProcedureGMN5239TPSTANDARDSBrakeSystemFloorCheckProcedure(BBS-039)checkafternewbrakepartsareinstalled1IntroductionandbeforeanyinstrumentationhasbeeninstalledinthebrakesystemNote:Nothinginthisproceduresupersedesprovidesabrakesystembaselineapplicabl

2、elawsandregulationsunlessaspecificmeasurement.Thebaselinecanbeexemptionhasbeenobtained.usedtoreturninbrakesystemtooriginalperformancelevelsintheeventofleaksNote:IfthereisaconflictbetweentheEnglishorairingestioninthehydraulicsystem.anddomesticlanguage,theEnglishlanguageshallt

3、akeprecedence.Afloorcheckperformedaftertheinstallationofinstrumentationinthe1.1Purpose.brakesystemmaybecomparedtotheThisproceduredescribestheprocesstobaselinetoascertainthatnoairwasmeasuretherelationshipbetweentheintroducedduringtheinstallation.brakepedaltravelandthebrakeped

4、alforce.Afloorcheckinsertedinthebraketestmatrixcanmeasuretheincreasein1.2Foreword.travelduetofrictionmaterialwearorcanAfloorcheckisatestofthebrakeindicatepossibleproblemswiththesystem,eitherinavehicleoronabrakehydraulicsystem.systemtestbench.Thefloorcheckmapsthebrakepedaltra

5、velasa1.3Applicability.functionofthebrakepedalforce.ForaThisprocedureisapplicabletoallvehicletest,thevehicleisatrestwiththepassengercarsandtomulti-purposeenginerunningtosupplyboosttothevehiclesandtruckswithagrossvehiclebrakesystem.Forabrakesystemweight(GVWR)of3500km(7716lb)o

6、rbenchtest,asourcetosupplyboosttolesswithahydraulicbrakesystem.thesystemisrequired.1.4Definitions.Thefloorcheckmeasuresthetravelofthefullbrakesystemor,byusingclamps1.4.1Applyrate.Requirementthatspecifiestoblockfluidflowtothecorners,theamountofforcetobeappliedtothemeasuresthe

7、pedaltravelassociatedbrakeovertime.Maybereferredtoaswiththeoperationofeachbrakecornerramprate.andtheapplysystem.Notethatunseendamagetothestructureoftheflexible1.4.2Applysystemtravel.Travelatthebrakebrakehoseispossiblewhenusingpedalmeasuredduringafloorcheckclampstocrimpthehos

8、e.Forsomewhenallhydraulicbrakecornershavevehicletests,onlythefullsystembeen