Izici zokufaka nokuphumayo ze-vacuum booster. Kunephoyinti lokuguquguquka kwijika ngalinye elihambisana namadigri e-vacuum ahlukene emfanekisweni, okubizwa ngokuthi iphoyinti lokusiza lamandla aphezulu, okungukuthi, iphuzu lapho umehluko wengcindezi osebenza ku-servo diaphragm ufinyelela ubukhulu bawo njengoba amandla okufaka akhula. Kusukela kuleli phuzu kuqhubeke, ukwanda kwamandla okukhiphayo kuyalingana nokwanda kwamandla okufaka.
Ngokusho kwe-QC/T307-1999 "Izimo Zobuchwepheshe Ze-vacuum Booster", idigri ye-vacuum yomthombo we-vacuum phakathi nokuhlolwa ngu-66.7±1.3kPa (500±10mmHg). Izici zokufaka nokuphumayo ze-vacuum booster zinqunywa ekuqaleni indlela yokubala. Ngokomgomo wokusebenza we-vacuum booster, amapharamitha wesici amabili ejika lesici angalinganiselwa: amandla okufaka ahambisana nephuzu lamandla aphezulu kanye nesamba; Isilinganiso samandla okukhiphayo kumandla okufakwayo ngaphambi kwephoyinti lamandla eliphakeme, okuyisilinganiso samandla
