Mwachitsanzo, ngati chisindikizo cha mafuta cha axle chawonongeka, mafuta adzatuluka kuchokera ku chisindikizo cha mafuta, ndipo mafuta omwe atuluka adzamizidwa pamalo a brake pad. Kuwonongeka kwakukulu kwa mafuta pa brake pad ndi kulephera kwa brake. Ngati pali mavuto poyendetsa, ndi koopsa kwambiri kuponda brake. Kuphatikiza apo, phukusi lakumbuyo lidzakhala lopanda mafuta, ndipo pali mawilo akuluakulu ndi ang'onoang'ono otambasulidwa ndi magiya a planetary [omwe amatchedwa differential] mu phukusi lakumbuyo. Ngati mafuta a giya alibe mafuta, n'zosavuta kuwononga giya lakumbuyo.