Shaabada daboolka dhamaadka, oo sidoo kale loo yaqaan daboolka dhamaadka ama daboolka boodhka saliidda, ayaa inta badan loo adeegsadaa sanduuqyada gearbox iyo yareeyayaasha si looga ilaaliyo boodhka iyo wasakhda inay galaan qaybaha dhaqaaqa.Inta badan waxaa loo isticmaalaa qalabka hawo-mareenada sida mishiinada injineernimada, mishiinada wax lagu durayo, mishiinada warshadaha, mashiinnada hawo-qaadista, fargeetada, wiishashka, biibiyaasha, iwm. sanduuqyada gearbox, oo u adeegaya beddelka cidhifyada dhamaadka ama daboolyada dhamaadka, oo leh lakabka caagga ah ee dibedda ka dhigaya mid u nugul daadinta saliidda kursiga saliidda.Isla mar ahaantaana, waxay xoojisaa muuqaalka guud iyo daacadnimada sanduuqa gearbox iyo qaybaha kale.Daboolayaasha saliidda guud ahaan waxay tixraacaan daboolka daboolka weelasha ay ku jiraan warbaahinta sida shidaalka, saliidda injiinka, saliidda saliidda, iyo wixii la mid ah qalabka farsamada.