Herein are two pics of the cones set up for my mower which i brought to show Bruce today.As we found out one of the cones has been glued in apparently as a retaining pin which stops the cone from turning/spinning has snapped off/missing.This mower is a zero turn,lever driven unit built by Davawn Industries Melbourne back in the 80`s.It is thought that both early Dixon and or Cox have a similar set up.However this remains to be seen.In the interim Bruce is looking into the subject matter. My thanks to you Bruce. Regards GgordonN