Ana sanya foda a kan ƙaramin bel ɗin ƙarfe don ya shiga cikin injin. Tsarin matsi yana aiki ne ta hanyar haɗin bel ɗin ƙarfe guda biyu da na'urori biyu masu juyawa, kuma foda yana ci gaba da "ci gaba" a ƙarƙashin matsin lamba da ake tsammani.