955L Track came off....how do I put it back on?

We just bought a 955L a few days ago. It was running great and all of a sudden the right track came loose off the front roller. It came partially off of the rear and it is still on the sprocket at the top.

I loosened the grease fitting so that I could push the front roller toward the back. The track is still on the rear sprocket on the top.

I don't know how to get it back on. Right now I am stuck in a brush pile.

I was hoping that if I could get the rear jacked up and then the track might rethread itself by rotating the rear sprocket in reverse.

Any better ideas or advice?

Any and all help appreciated!

DP