Gooseneck Hydraulic Dad badan ayaa raba inay ogaadaan sababta ay u doorteen gooseneck haydarooliga iyo sababta ay u dooranayaan bar-jiitaan (bar jiid). Caadiyan gooseneck-keena ku shaqeeya waxa uu ku qalabaysan yahay mishiinka naaftada (waxa aanu sidoo kale ugu yeedhnaa baakad koronto). Liistada macluumaadka soo socota ee faa'iidada gooseneck: Qoorta goose, jack hydraulic (dhululubo) qoorta goose ayaa xoog saaraya cagaf-cagaf, looma baahna in la saaro miisaannada xamuulka (dhaqdhaqaaqa koowaad), iyo kordhinta awoodda culeyska iyo maneuverability ee trailer modular. Shiinaha, gooseneck trailer (loo yaqaan semi trailer) ayaa loo oggol yahay inuu ku socdo dariiqa xawaaraha sare leh, barbaro bar-jiif ah (oo loo yaqaan trailer buuxa) lama ogola. Haydarooliga gooseneck trailer wuxuu leeyahay isteerin aad u deggan oo sax ah marka la barbar dhigo kan barbaradka barbaradka ah. Dhaqdhaqaaqa xoogga ah ee ka dhashay gooseneck waa la hagaajin karaa. Dhererka biinka xiga waa la hagaajin karaa, markaa way fududahay in gooseneck (trailer) laga gooyo cagafyada. Way adagtahay in dib loo celiyo barbaradka bar-bar-jiidka, way fududahay in la rogo tareenka qoorta.