On 25/11/2017 18:44, Rob Morley wrote:

Remove cover (one screw), slacken tension bolt, move belt from larger to
smaller pulley, move belt from smaller to larger pulley, apply tension
and tighten bolt, replace cover. SOP for this sort of machine, doesn't
take long. Of course I'd like a big one with three sets of pulleys,
but I just couldn't justify it in terms of space or cost or use. The
modern ones with electronic speed control don't appeal as much. :-)


Mine has a middle pulley on a swinging arm. You can go from
frighteningly fast to ludicrously slow.

Bill