Ah ok, got it, so the motor/gearbox drives two pinions (one on each side) which then use direct contact with the traction tyres to produce wheel rotation. So in this scenario the traction tyres have a dual purpose. I would guess you'd have trouble if the rubber on the pinions is worn and/or dirty so it slips. Quite a strange arrangement in comparison to most of the others we seem to get around.
Any plan to remedy the problem? I'm not sure where you'd get those small rubber tyres (for the pinions) from. Maybe some rubber heatshrink over the pinion? Don't know if that would work though or just cause even more slippage...
Any plan to remedy the problem? I'm not sure where you'd get those small rubber tyres (for the pinions) from. Maybe some rubber heatshrink over the pinion? Don't know if that would work though or just cause even more slippage...
Happily collecting things all my life... 