Sorry, Ae, misunderstood. There's a lot of wheels here. And sure, Cooba.

Also, Torkell, the clock on the trolley was the only one with an identifying mark signifying direction. Shuri was presuming the time was 3:00 on all of them from this. Sorry if I didn't imply that well enough.

I suddenly realized that I had misunderstood my own brilliant plan. I trudged back through the cold wind until I reached the previous valve. I snagged the crowbar under the bolt to try to pry it out class-two-lever style. After a bit of prying, I finally managed to work out both the wheel and the fragile, rusty bolt that held it in place. Score.