Mai riƙe kusurwa
Aikace-aikace:
1. Ana amfani dashi lokacin da yake da wuya a gyara manyan kayan aiki;lokacin da aka gyara madaidaicin kayan aiki a lokaci ɗaya kuma ana buƙatar sarrafa saman saman da yawa;lokacin aiki a kowane kusurwa dangane da farfajiyar tunani.
2. Ana kiyaye aikin sarrafawa a wani kusurwa na musamman don ƙaddamar da niƙa, irin su ƙwallon ƙafa;ramin yana cikin ramin, kuma sauran kayan aikin ba za su iya shiga ramin don sarrafa ƙaramin ramin ba.
3. Ramukan da ba za a iya sarrafa su ta hanyar injin injin ba, kamar ramukan ciki na injin da casing.
Matakan kariya:
1. Gabaɗaya shugabannin kusurwa suna amfani da hatimin mai ba tare da lamba ba.Idan ana amfani da ruwan sanyaya yayin sarrafawa, ana buƙatar a yi aiki da shi kafin a fesa ruwa, sannan a daidaita hanyar bututun ruwan sanyaya don fesa ruwa zuwa ga kayan aiki don hana sanyaya ruwa shiga cikin jiki.Domin tsawaita rayuwa.
2. Guji ci gaba da sarrafawa da aiki a mafi girman gudu na dogon lokaci.
3. Koma zuwa halayen ma'auni na kusurwa na kowane samfurin kuma yi amfani da shi a ƙarƙashin yanayin aiki masu dacewa.
4. Kafin amfani, kuna buƙatar tabbatar da gwajin gwajin don 'yan mintoci kaɗan don dumama injin.Duk lokacin da kuke aiwatarwa, kuna buƙatar zaɓar saurin da ya dace da ciyarwa don sarrafawa.Ya kamata a daidaita saurin, ciyarwa, da zurfin yanke a lokacin aiki a hankali a hankali har sai an sami mafi girman aikin aiki.
5. Lokacin sarrafa babban madaidaicin kusurwa na gaba, ya zama dole don guje wa kayan sarrafawa waɗanda zasu haifar da ƙura da barbashi (kamar: graphite, carbon, magnesium da sauran kayan haɗin gwiwa, da sauransu).
