Sanya zoben fistan a lebur a cikin silinda, tura zoben lebur tare da tsohon fistan (lokacin canza zobe don ƙananan gyare-gyare, tura shi zuwa matsayi inda zobe na gaba ya motsa zuwa ƙananan wuri), kuma auna ratar budewa tare da kauri. ma'auni.

Idan tazarar buɗewa ta yi ƙanƙanta, yi amfani da fayil mai kyau don yin fayil kaɗan a ƙarshen buɗewa. Ya kamata a gudanar da bincike akai-akai yayin gyaran fayil don hana buɗewa daga girma da yawa, kuma buɗewa ya kamata ya zama lebur. Lokacin da aka rufe buɗe zobe don gwaji, kada a sami karkacewa; karshen fayil ɗin yakamata ya zama mara amfani.

Duba koma baya, saka zoben fistan a cikin ramin zobe sannan a juya shi, sannan a auna ratar tare da ma'aunin kauri ba tare da bayar da fil ba. Idan izinin ya yi ƙanƙanta sosai, sanya zoben fistan a kan farantin lebur da aka lulluɓe da rigar Emery ko farantin gilashin da aka lulluɓe da bawul ɗin yashi kuma a niƙa sirara.

Duba baya kuma sanya zoben piston a cikin ramin zobe, zoben yana ƙasa da bankin tsagi, in ba haka ba ya kamata a juya ramin zobe zuwa wuri mai kyau.