(1) Nadiifinta isku dhafka gearku aad ayuu u weyn yahay ama aad buu u yar yahay.
(2) Fogaanta dhexe ee u dhaxaysa daloolka xadhkaha weyn ee crankshaft iyo daloolka xajinta kambuyuutarka ayaa isbeddela inta lagu jiro isticmaalka ama hagaajinta, noqda mid weyn ama yar; shafka iyo xadhkaha xadhkaha camshaft-ka maaha kuwo isbarbar socda, taasoo keentay inay xumaato isku-xidhka qalabka.
(3) Habayn aan sax ahayn ee astaanta iligga gear, qallafsanaanta inta lagu jiro daawaynta kulaylka ama daalka xad-dhaafka ah ee dusha iliga;
(4) Wareegga Gear - Farqiga u dhexeeya godadka cirridka ee wareegga ma aha mid la mid ah ama hoos u dhaca ayaa dhacaya;
(5) Ilkaha waxaa ku yaal nabarro, dildilaac ama ilko jabay;
(6) Qalabku waa dabacsan yahay ama ka baxay shafka ama shafka;
(7) Gear dhamaadka wejiga orod wareeg ah ama radial runout waa mid aad u weyn;
(8) Nadiifinta axial-ka ee shafka ama shafka kaamirada ayaa aad u weyn;
(9) Gearsyada laguma beddelo laba-labo.
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(11) Qalabka wax lagu hagaajiyo ee looska waa dabacsan yahay.
(12) Ilkaha marsho waqti-camshaft ah ayaa jabay, ama qalabku wuxuu u jabay jihada radial.