Thanks Norm, That would be greatly appreciated. Yes the top pulley is for the cone drive, A section. The bottom pulley is the larger one and for the cutter drive, B section. I reckon the gap between them would only be about an inch or a bit over an inch. They seem like they must run pretty close together.

The original specs say that the cone drive belt is a V23. The cutter belt is a B55. How does that match with your model?