Wane aiki ya kamata a yi kafin a hada goro?Ⅰ

1. Da farko a duba muzzle lokacin da dunƙule ba a haɗa daidai ba, zaɓi goro wanda aka yayyafa shi daidai gwargwadon girman.

2. Kula da ko ƙananan rivet goro zai zama naƙasa ko kuma a raba shi, kuma daidaita kusurwar sandar aiki daidai da ainihin halin da ake ciki.