Sand fashewa injia matsayin muhimmin inji a cikin samar da masana'antu, ba wai kawai rage amfani da aiki ba, rage farashin samarwa, amma kuma yana sa samarwa masana'antu ya fi dacewa da sauri, amma idan yanayin aiki yana da tsawo, zai rage rayuwar sabis, don haka yi aiki mai kyau Maintenance ne mahimmanci, kuma gabatarwa ta gaba ga ilimin kulawa na injin yashi.
Kulawa dayashi ayukan iska mai ƙarfiza a iya raba shi cikin kulawa kowane wata, gyaran mako, da gyara na yau da kullun. Mataki na kulawa shine yanke tushen iskar gas, gudanar da binciken tsayawa, cire bututun ƙarfe, dubawa da tsaftace akwatin tace, tsaftace kofin ruwa.
Duba wutar lantarki, bincika idan al'ada ce, da jimlar lokacin shaye-shaye, duba ko hatimin bawul ɗin da ya rufe yana tsufa da fashewa, idan hakan ta faru, ya zama dole a maye gurbinsa.
Don bincika tsarin tsaro akai -akai don gujewa haɗarin tsaro yayin aiki don tabbatar da aikin al'ada na al'adainjin fashewa.