The shiman torocco trolley train is a special train.
It resumes on the first weekend in July and runs through August.
The shedule below JR Shikoku sight.
http://www.jr-shikoku.co.jp/01_trainbus/event_train/seat_info/simantorokko.htm
Yodo-Line (UP) Leaves Uwajima station at 10:29am – Arrives at Kubokawa station at 13:16pm
Yodo-Line(DOWN) Leaves Kubokawa station at 14:14 pm – Arrives at Uwajima station at 16:46.
Watch you-tube about the Shiman trocco and JR Shikoku sightseeing trains.