Gear teeb meem
Kev hloov pauv thiab hloov pauv yuav tsum yog du, meej, thiab tsis muaj qhov tsis txaus siab ntawm qhov hloov pauv. Yog tias qhov no tsis yog, koj yuav tsum ceev nrooj nrhiav qhov laj thawj thiab tshem tawm nws.
Kev hloov pauv ntxhib, tshwj xeeb tshaj yog rov qab iav, tuaj yeem suav tias yog qhov qub thaum lub cav txias. Thaum 
Kev tiv thaiv kev hloov mus rau hauv iav txawm tias tom qab lub cav tau sov tuaj yeem tshwm sim los ntawm ntau yam laj thawj. Ib qho ntawm lawv yog kev siv cov roj tsis zoo, tuab heev, tsis zoo li cov neeg tsim khoom pom zoo.
Yog hais tias lub suab sib tsoo tau hnov thaum hloov lub zog (txawm hais tias kev ua haujlwm clutch zoo), qhov no yog ib qho piv txwv ntawm synchronizer hnav. Tsis tas li ntawd, qhov kis tau tus mob yuav raug hloov mus, i.e. poob ntawm iav thaum tsav tsheb. Tus neeg tsav tsheb nws tus kheej feem ntau yog liam rau kev hnav ntxov ntxov ntawm cov synchronizers, uas tso cai rau lub clutch kom tsis txhob cuam tshuam thaum hloov lub zog, txo lub zog ntawm qhov siab dhau, hloov lub zog sai sai, tiv thaiv cov txheej txheem synchronization los ntawm kev ua haujlwm ib txwm. Synchronizers kuj tsis nyiam caij lub zog siab ntawm qhov qis dhau.
Lub hauv paus ntawm qhov nyuaj thaum hloov lub zog thiab qhov ua rau lub sijhawm ntxov ntawm cov synchronizers tuaj yeem yog lub flywheel bearing uas lub clutch ncej tau teeb tsa. Seized bearing ua rau deformation ntawm lub clutch ncej journal. Kev xyaum ntawm kev cob qhia kuj kho cov teeb meem ntawm synchronizer hnav los ntawm kev puas tsuaj rau lub crankshaft kev co damper.
Ntxiv nrog rau hnav synchromesh, qhov tsis zoo ntawm kev hloov pauv hauv lub cev tuaj yeem ua rau muaj kev hloov pauv nyuaj. Nyob rau hauv cov tsheb uas lub gearshift lever nyob deb ntawm lub internal gearshift mechanism, i.e. lub gearbox nws tus kheej, lub iav xaiv yog nqa tawm siv ib tug tsim nyog system ntawm levers los yog cables. Ib qho malfunctions nyob rau hauv no system nyob rau hauv daim ntawv ntawm kev ua si ntau heev los yog deformation ntawm lub Cheebtsam kuj yuav ua rau hloov nyuaj.
