Thank you Deejay. It is good to know that those parts are available, though I did have to sit down after seeing the price. Are the parts you quote new? I wonder why the "cutter bearing housing pivot" as it is called in the parts manual, has morphed into a "cam action bearing housing moving"? How much would I need to pay for a cutter reel (mine is 8 blade) in good condition?
As a first move I have taken the cutter assembly to an aluminium welder who has a very good reputation. He seemed unfazed by the request to weld the part; I suspect that it will need rebushing. I do not know what the "bearing housing pivot" looks like when removed; is it just a simple pivot rod, or does it also prevent the bearing housing from moving laterally?
Thank you Grumpy for your advice which, as you see, I have followed.
Is a suitable bottom blade available?
