• Injin yana amfani da tsarin akwatin tare da halaye masu kyau na matsi.

• A spindle hannun riga rungumi dabi'ar daidaici-sa dogara sanda musamman hali, wanda yana da kyau kwarai daidaito da kwanciyar hankali.

• Daidaita ƙwallon ƙwallo yana ɗaukar kwaya biyu, kuma kowane shaft yana tallafawa jimlar kwallaye biyar a ƙarshen iyakar shaft ɗin. Bearaura na musamman suna cikin damuwa don tabbatar da daidaiton fadadawar zafin jiki.

• 'Yan rakiyar sun dauki nauyin hada karfi sosai don watsa kai tsaye don rage rarar yaduwar.