Mu rwego rwo gushushanya imashini, guhuza no gushyigikira ni ingenzi kugira ngo imiterere y’imashini ihamye kandi ikore neza. Imashini zisuka (zizwi kandi nka gaskets) ni igikoresho gihuriweho. Nubwo ari nto, zigira uruhare runini mu guteranya imashini. Iyi nkuru izasuzuma akamaro k’imashini zisuka, isesengura imikorere yazo, ubwoko bwazo, n’akamaro kazo mu mikoreshereze yazo.