對于HNG型手(shou)動(dong)(dong)緊急(ji)變(bian)速(su)(su)器,具(ju)有(you)雙作(zuo)用和(he)單作(zuo)用驅動(dong)(dong)的(de)(de)(de)自動(dong)(dong)閥(fa)可以手(shou)動(dong)(dong)操(cao)作(zuo)。如果控制空氣(qi)或電源(yuan)出現故障(zhang),可使(shi)用手(shou)輪在(zai)末端位置(zhi)(zhi)之(zhi)間移動(dong)(dong)驅動(dong)(dong)裝置(zhi)(zhi)。手(shou)動(dong)(dong)應急(ji)齒輪箱配有(you)可拆卸的(de)(de)(de)螺(luo)旋傳動(dong)(dong)裝置(zhi)(zhi)。驅動(dong)(dong)裝置(zhi)(zhi)和(he)閥(fa)門之(zhi)間的(de)(de)(de)裝配套件不包(bao)括在(zai)手(shou)動(dong)(dong)緊急(ji)變(bian)速(su)(su)器的(de)(de)(de)交付范圍(wei)內(nei)。