A ƙarshen kowane aiki, ko kuma a shirye-shiryen bugawa, tabbatar da cewa an cire dukkan na'urorin tawada masu kauri kuma an tsaftace su yadda ya kamata. Lokacin yin gyare-gyare ga injin, tabbatar da cewa dukkan sassan suna aiki kuma babu buƙatar aiki don saita injin. An tsara kuma an ƙera sassan tsarin daidaitawa zuwa ga juriya mai ƙarfi kuma suna aiki cikin sassauƙa da santsi. Idan wani abu ya faru, dole ne a duba sashin bugawa da kyau don tantance abin da ya haifar da gazawar don a iya yin gyare-gyare masu dacewa.