Hi
SBM,
I must admit that the description of a Scott Bonnar Model 45 as a "Professional balanced wheel cutter", the most extraordinary that I've heard, in my 40+ years experience with cylinder mowers.....
So from your last post, I gather that you are only concerned with a perceived fault of the Scotty 45.
As we go through the idiosyncrasies of my particular favourite machine, we shall inevitably condemn this thread to Tech Talk, a topic that we have for in-depth technical discussion.
Just so we are on the same page, firstly, alignment is the term we use when we are concerned with the machine chassis itself, and the components fitted to it.... eg., soleplate, rear rollers, front rollers etc.
It is not to be confused with cylinder reel to bedknife clearance, which is discussed in detail
HERE I have owned my Scotty 45 since new, and have never found my alignment to be an issue. Its chassis was aligned in the jigs at the SB factory, and has never required adjustment.
Mine has a G100 Honda (Japan) engine fitted, whose weight I do not know compared with a Kirby Tecumseh or Briggs.
As for the cut, with a sharp cylinder reel and ground bedknife blade, carefully adjusted, on my kikuyu lawn I have no problem....the finish is superb.
If your machine is cutting unevenly, I suggest you may have a chassis alignment problem with your machine.
