1) mmegharị ụgbọ ala na-enweghị isi;
2) Ndokwa na-ezighi ezi nke wiil ihu;
3) Ọnụ ọgụgụ dị ukwuu nke ntụgharị wheel;
4) nnyonye anya na-ebugharị usoro nnyefe;
5) axle na etiti deformation;
6) ekwekọghị nhata nke nkwusioru aka ekpe na aka nri, ọdịda ujo, ọdịda ndu, wdg.
(1) Nleba anya: lelee ma ọ bụrụ na ọdịda mmanụ ma ọ bụ ọdịda mmanụ, ga-edochi ya;lelee ma isi iyi nkwusioru nke aka ekpe na aka nri agbajiwo ma ọ bụ enweghị isi, ma ọ bụrụ na enwere nnọchi nke isi iyi nkwusioru;lelee ma njikọ nke isi iyi nkwusioru adịghị mma, usoro nnyefe ụgbọ mmiri enweghị nnyonye anya mmegharị, ma ọ bụrụ na a ga-ewepụ ihe ọ bụla;
(2) na-akwado n'akụkụ nke etiti na azụ mbanye axle, n'ihu wiil na cushion osisi pads, malite engine na nke nta nke nta mee ka ụgbọ ala n'ime elu-ọsọ gia, nke mere na mbanye axle iru ọsọ nke ahu vibration. .Ọ bụrụ na ahụ na steering wheel vibration, ọ na-akpata site na nnyefe usoro.
(3) lelee ma wiil ndị dị n'ihu ọ bụ nke na-adịghị mma: kwado axle n'ihu, tinye agịga na-akpụ akpụ n'ihu ihu, jiri nwayọọ nwayọọ gbanwee wiil ahụ, lelee ma akụkụ ahụ ọ dị oke ibu, ọ bụrụ otú ahụ, a ga-eji dochie rim;
(4) Wepu wheel n'ihu, lelee nguzozi siri ike nke wiil ihu na ihe na-agbanwe agbanwe, ma wụnye ngọngọ nguzozi dịka ọnụọgụ nke enweghị isi;
(5) Ọ bụrụ na nlele ndị a dị n'elu bụ ihe nkịtị, wee lelee etiti ahụ, nrụrụ axle, ya na ngwa ntinye n'ihu wheel iji lelee ma mezie nhazi n'ihu wheel.