OK, I'm confused. When you say "it won't move", does that mean when running it won't move under it's own power OR, that it won't roll when pushing.
My response about relief valves was to a 'wont roll' complaint primarily. But manual valves with the buttons depressed will result in a 'no drive' condition.
The responses about the roll pin were addressing a won't move under its' own power issue.
Unconfuse me please.