Gobusters Episode 7 is entitled: Bad Maintenance on the Ace?! "Ēsu Seibi Furyō?!" (エース整備不良?!). A rookie mechanic takes over maintenance of the Go-Buster Ace, making Hiromu feel unsure if he is ready. The Train Zord attacks, and there is a problem when sorting the Go-Buster Ace to combat the new Vaglass Megazord. Due to fault issues, Gobuster Ace must need of immediate repair and takes 30 minutes to complete.
subbed version can be found here: