Geoff, pics of the mechanism are all we can get, unless you'd like to arrange to have the mower itself shipped to each of 4,000 members in turn so they can experiment. The drive, from several angles so we can try to find the external control that operates the pawls, seems to be what we need. From what you said I take it the pawls are all disengaged so the wheels can rotate either forward or backward without affecting the reel. That would be for towing the mower around the property without mowing. There will be another position of some control that lowers the pawls into mesh with the ratchet wheel, so the wheels drive the reel, but either wheel can get ahead of the other wheel without having to skid. Most likely there will be two of these external controls, one on each side of the mower. It wouldn't be those large rotating knobs directly above the reel axle on each side, would it?
