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Myford 254V Plus gearbox noise and vibration

Question from members who have experience of servicing a lathe

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Robert Trethewey07/11/2020 16:39:30
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Hi: Everyone - on the 2nd of May 2019 IFoggy wrote that he'd found a small piece of iron in one of the gears of his Myford 254V Plus lathe which caused a vibration when using the lathe's back gear - I'd very much appreciate knowing how he actually found the offending piece of metal as I may have a similar problem effecting my machine to a small amount but I'd like to ensure that this doesn't develope into a real problem.

My Myford 254V plus can be seen on www.ritasears.blogspot.com look at tab "R" if you're interested in seeing the rebuild of a Myford KF-MC-C milling machine which will shortly be fitted with a three axis DRO and a home built power drive on it's longitudinal table look at tab"O"

Chris Pearson 107/11/2020 18:30:16
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Are you able to measure the frequency of the vibration (against spindle speed)? That ought to give you an idea where to look.

Robert Trethewey07/11/2020 18:58:02
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Hi: Thanks for coming back to me so quickly - I don't have anything to measure the vibration. I can hear and feel a very slight knocking - this is why I looked up posts about bearing setup and adjustment thinking it was a loose bearing which could be the case as the previous owners, a technical college in London, who's engineers had done little or no maintenance since the machine was first supplied to them.

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