1. Chida chowongolera bwino cha kutalika kosatha chimapangitsa kusintha kukhala kosavuta komanso kolondola.
2. Zolemba za wiper ndi strap tensioner ndizokwanira komanso zoyenera pamtundu uliwonse wa nsapato. The tensioner yokutidwa ndi unyolo, kotero tension zotsatira zabwino kwambiri.
3. Wiper ili ndi chipangizo chotenthetsera. Thandizo la nsapato lomaliza limadzuka ndikukakamiza kachiwiri. Kutsirizitsa mankhwala ndi lathyathyathya popanda ngodya iliyonse pambuyo chokhalitsa, kuwongolera khalidwe la nsapato.