Hi Steve and grumpy,
I have just spoken to the gentleman in Mildura, who worked for Scott Bonnar in Adelaide and later was a SB dealer/repairer, about the drum weight and the drum hole debate.
He stated that the "drum weight" was placed in it's position (offside)
opposite the "driven" roller (nearside) to assist in the
turning of the machine whilst in motion. He said that most machines that have a "split rear roller" have a counter-weight for
turning purposes.
Re the holes, he stated (as Steve correctly thought) that they were part of the manufacturing process when mould casting the roller segment.
This guy has a wealth of information, and I thank him for his assistance helping with this issue.
