Izikali zamaleveli emishini zibalulekile emishinini yokwakha ukuze kuqinisekiswe ukusebenza kahle nokuphephile. Banikeza inkomba eqondile nebonakalayo yamazinga kaphethiloli emathangeni emishini, okubalulekile ekuvimbeleni ukuphelelwa isikhathi kwemishini nokugcina ukusebenza kahle. Lawa ma-gauge, ngendlela yawo elula yokuntanta, ahlinzeka ngesilinganiso esicacile nesifundeka kalula esikhuphukayo futhi sehle nezinga likaphethiloli. Ukwakhiwa kwazo okuqinile kanye nokuntuleka kwezakhi ze-elekthronikhi kubenza bamelane nokuphelelwa amandla kanye nezimo zemvelo ezinzima ezivame ukuhlangana nazo ezindaweni zokwakha. Lokhu kuthembeka kuyisihluthulelo semishini yokwakha, lapho ukuqapha izinga likaphethiloli kubalulekile kukho kokubili ukukhiqiza nokuphepha.