Classic school boy error. I have reassembled my Webb 14" 1960 style mower but have a circlip and thin flat washer left over. They were on the bench together and are the same diameter suggesting they go together. The shaft diameter would have been 5/8" and they are quite clean so I think they must have come from the clutch/drive assembly.
Does anyone have the exploded view of the clutch arrangement?
I'll be more careful next time and take more photos.
2nd concern.... Should the nuts on the roller shaft be left loose? When I tighten them up the roller stops turning, not surprising as it is a solid connection to the roller. The nuts appear to just be one half nut which seems quite out of keeping with the way the rest of the unit is engineered. Am I missing something here (besides the circlip). Nowadays we would use a nyloc nut.