1. Kugwedezeka.
Pamene wononga ndi dzimbiri, siloledwa kuchotsedwa mokakamiza ndi wrench. Dinani wononga ndi wrench, thyola ma sundries pamalo a dzimbiri, tembenuzira wononga kumanzere ndi kumanja ndi wrench, ndiyeno mutha kuchotsa wononga. Anathyoledwa.
2. Moto.
Ngati wononga ndi dzimbiri kwambiri, mungagwiritse ntchito kuwotcherera magetsi kuti oxidize wononga, kuwotcha wononga wononga, ndiyeno kuponya mafuta mafuta mu kusiyana kwa wononga, dikirani kanthawi, ndiyeno kuchotsa wononga ndi wrench.