Ruoko rwe rocker mumotokari chiredzo chine pfuti mbiri chinodzoreredza simba kubva patsvimbo yekusundidzira uye chinoshanda panoperera tsvimbo yevharuvhu kusunda kuvhura vharuvhu.Huyero hwehurefu hwemaoko kumativi ese eruwoko rwedombo hunonzi rocker arm ratio, iyo inenge 1.2 ~ 1.8.Imwe mugumo weruoko rurefu inoshandiswa kusundira valve.Nzvimbo yekushanda yerocker arm head inowanzo gadzirwa necylindrical shape.Kana ruwoko rwedombo ruchizununguka, runogona kutenderedza nechekumagumo kwerutanda rwevharuvhu, kuitira kuti simba riri pakati pezviviri riite pamwe chete neakisi yevharuvhu sezvinobvira.Ruoko rwe rocker rwunocherwawo nemafuta ekuzora uye maburi emafuta.Siruuru yekugadzirisa vharafu inopinzwa mugomba rine shinda kumucheto kweruoko rwerocker arm.Bhora remusoro rescrew rakabatana neconcave tee kumusoro kwetsvimbo yekusundidzira.
Ruoko rwe rocker haruna chinhu rwakaiswa pane rocker arm shaft kuburikidza nerocker arm bushing, uye iyo yekupedzisira inotsigirwa parocker arm shaft seat, uye ruoko rwe rocker runodhirwa nemaburi emafuta.
Ruoko rwe rocker runoshandura kutungamira kwesimba kubva kutsvimbo yekusundidzira uye kuvhura vharuvhu.
