Hi There,
?
If I am understanding you correctly, you are referring to the hole
in the worm in the apron and the round take-up nut that holds it
in the apron casting.
?
The castings are not real hard and wear at the point the worm butts
against the boss of the apron.? First off, this isn't a real critical problem.?
The .075" backlash is just the amount the worm and casting have
worn.? The lathe will work quite well like this but there is going to
be some "play" or "take-up" before things fully get moving.? This
is just fine but some like to eliminate as much "play" or "slop" in the
mechanism as they can.
?
If you cannot rotate it one full turn to take-up the wear, you can tighten
it as much as you can (and still not have it bind) and drill a new hole in
the nut to align with the hole in the worm so the take-up and worm can
be locked together with the pin.
?
Good Luck!
-Blue Chips-
Webb
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