I don't know about the rubber track machines, but usually it requires that a pin be removed and the track put back on the sprocket and pulley. Some machines use grease that is pumped into the track area to put pressure on the track and keep it on. The more important question is not how to put it back on, but why it came off in the first place. Under some strenuous situations, it is possible to throw a track, but this is rare on a well maintained machine. My old Oliver would occasionally throw a track but that was a result of the sprocket being worn and the track needing new bushings and pins.. Sorry I can't help you any more than this, but TBN is primarily for wheeled tractors, not track machines.....