Help with Hardinge HLV-H tailstock

The tailstock on my HLV-H has become virtually impossible to move. I've
removed the clamping assembly and the gib, so that only the tailstock
boy itself remains on the bed, and the thing still moves only with
extreme difficulty. Should I be using some special oil for the
tailstock bearing? Any other suggestions?
(I guess the previous owner- IBM labs - had a similar problem: they
drilled two holes through the body to the bearing surface on the
bottom; one hole is fitted with an air coupling, the other is plugged
with a screw but is, I assume, intended to provide a path for
lubricating oil.)
Thanks!
George
Reply to
George Woodzell
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They do tend to sock on down tight, especially if you use way oil and leave them sit for a while. To break them loose, bump with the carriage.
I tend to keep ATF (which is what hardinge says to put in the pump lubricator on the carriage) under the tailstock. But the bearing surface is large and it does still stick if not used for a week or so.
Which IBM laboratory did it come from? T.J. Watson?
Jim
Reply to
jim rozen
I'm not certain which lab used my lathe, but I believe it was in Endicott, New York, if that helps.
Thanks for the suggestion about transmission fluid - I'll give it a try.
Thanks
George
Reply to
George Woodzell
That's what the mfr. specs for the pumper oiler that does the cross slide and carriage. It's already on the ways, I just juice up the tailstock end with a pump oiler now and again.
When I was putting way oil on it, it would lock down *real* tight after a few days if it didn't get used. Come to think of it, I haven't *used* the pump oiler at work that has way oil in it, in a couple of years.
Jim
Reply to
jim rozen
I also use ATF in my HLV-H.
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Reply to
Gunner

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