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1、ChassisChassisincludetheclutch,thetransmission,thedriveshaft,thefinaldriveassembly,thefrontsuspension,therearsuspension,thesteeringsystem,thebrakesystem,thewheelsandtires.l.clutchTheengineproducesthepowertodrivethevehicle.Thedrivelineordrivetraintransferthep
2、oweroftheenginetothewheels.Thedrivetrainconsistsofthepartsfromthebackoftheflywheeltothewheels.Thesepartsincludetheclutch,thetransmission,thedriveshaft.andthefinaldriveassembly•Theclutchwhichincludestheflywheel,clutchdisc,pressureplate,springs,pressureplateco
3、verandthelinkagenecessarytooperatetheclutchisarotatingmechanismbetweentheengineandthetransmission.Itoperatesthroughfrictionwhichcomesfromcontactbetweentheparts.Thatisthereasonwhytheclutchiscalledafrictionmechanism.Afterengagement,theclutchmustcontinuetotrans
4、mitallenginetorquetotransmissiondependingonthefrictionwithoutslippage•Theclutchisalsousedtodisengagetheenginefromthedrivetrainwheneverthegearsinthetransmissionarebeingshiftedfromgearratiotoanother.Tostarttheengineorshiftthegears,thedriverhastodepresstheclutc
5、hpedalwiththepurposeofdisengagementthetransmissionfromtheengine.Atthattime,thedrivenmembersconnectedtothetransmissioninputshaftareeitherstationaryorrotatingataspeedthatissloweroffasterthanthedrivingmembersconnectedtoenginecrankshaft.Thereisnospringpressureon
6、theclutchassemblyparts.Sothereisnofrictionbetweenthedrivingmembersanddrivenmembers.Asthedriverletsloosetheclutchpedal,springpressureincreaseontheclutchparts•Frictionbetweenthepartsalsoincreases•Thepressureexertedbythespringsonthedrivenmembersiscontrolledbyth
7、edriverthroughtheclutchpedalandlinkage.Thepositiveengagementofthedrivinganddrivenmembersismadepossiblethefrictionbetweenthesurfacesofthemembers.Whenfullspringpressureisapplied,thespeedofthedrivinganddrivenmembersshouldbethesame•Atthemoment,theclutchmustactas
8、acouplingdeviceandtransmitallenginepowertothetransmission,withoutslipping.However,thetransmissionshouldbeengagedtotheenginegraduallyinordertooperatethecarsmoothlyandminimizetorsionalshockonthedr
