Zolowetsa ndi zotulutsa za vacuum booster. Pali malo opindika pamapindikira aliwonse omwe amafanana ndi ma digriuum osiyanasiyana pachithunzicho, chomwe chimatchedwa gawo lothandizira kwambiri lamphamvu, ndiye kuti, pomwe kusiyana kwapakatikati komwe kumachitika pa diaphragm ya servo kumafika pamlingo wake waukulu pomwe mphamvu yolowera ikuwonjezeka. Kuyambira pano, kuwonjezereka kwa mphamvu zotulutsa kumakhala kofanana ndi kuwonjezeka kwa mphamvu yolowera.
Malinga ndi QC/T307-1999 "Technical Conditions for vacuum Booster", kuchuluka kwa vacuum gwero pakuyesa ndi 66.7±1.3kPa (500±10mmHg). Zolowetsa ndi zotulutsa za vacuum booster zimatsimikiziridwa ndi njira yowerengera. Malinga ndi mfundo yogwirira ntchito ya vacuum booster, magawo awiri omwe ali pamapindikira amatha kuyerekezedwa: mphamvu yolowera yomwe ikugwirizana ndi mphamvu yayikulu kwambiri ndi kuchuluka; Chiŵerengero cha mphamvu yotulutsa mphamvu yolowera patsogolo pa malo apamwamba kwambiri, omwe ndi chiwerengero cha mphamvu
