Worn Myford ML7 Cone Pulley

I've got a Myford ML7 Tri-Leva which over the past few months has developed a "knock" and I wonder if anyone can offer some advice.

I recently changed the rather old drive belts as I thought that they may have worn unevenly, but that didn't fix anything. After much prodding, I've come to the conclusion that the cone pulley block on the headstock is loose and at a certain point in a revolution it jumps from one position to another, so causing a knock when running at speed. There is a grub screw on the centre pulley, but adjusting that doesn't seem to make much difference.

Is this a problem that anyone is familiar with?

My next attempt at fixing this is to remove the pulley block from the shaft and see if it is fixable in any way or whether it needs replacing, however that's not a totally straightforward process as there is a tight bush that needs a puller to remove. So, before I do that, I thought I'd see if there is some wise person out there who has seen this before.

Thanks, John

Reply to
JohnPalombo
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Post your question in uk.rec.models.engineering. There is a wealth of info on this news group . Mostly very helpful people ,unless you piss them off . Also these sites may help

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I have a Myford Super 7 I'm not sure if the lathes are the same construction.But I have the Myford manual in pdf format for the lathe and the quick change gearbox I can send if you want it My e-mail address is munged so you will need to remove the "." between the "west" and "net"

Reply to
Kevin(Bluey)

O yeah put Myford in the subject line and I wont bounce your e-mail

Reply to
Kevin(Bluey)

Thanks Kevin, have now done.

Reply to
JohnPalombo via ModelGeeks.com

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