hi Deejay and Grumpy, thanks for the picture and information. I see now that what I thought was a local modification, is in fact a replacement for the original adjusting screw arrangment. The original must have worn out and without spares available in this country, the Greenkeeper simply copied it. Its not shiny metal but it works!
My mower must be a very old one judging by the lack of any protection around the pulleys and rotating shaft - a present day armageddon for health and safety fellows.
thansk for the link to an operators manual.
William
