Grizzly G0509 - Manual (Page 49)

G0509 & G0509G 16" x 40" Lathe
-47-
leadscrew endplay
adjustment
halfnut adjustment
to adjusted the halfnut gibs, remove the thread
dial to expose the two gib screws (
figure 63).
your goal is to remove sloppiness in the ways
without causing the half nut to bind. you will loos-
en the jam nuts and turn the two set screws clock-
wise until slight tension is felt in the set screw. the
gibs will then be slightly pre-loaded. tighten the
jam nuts when finished.
figure 63. typical halfnut gib adjustment
screws.
half nut gib
Adjustments
points
(thread dial
removed)
leadscrew
Apron
After a long period of time, you may find that the
lead screw for threading operations may develop
a bit of end play. this lathe is designed so that this
play can be removed.
to remove leadscrew end play:
1. disConnECt lAthE FroM poWEr.
2. using a 3mm hex wrench, loosen the retainer
set screw ( figure 62).
figure 62. leadscrew end play adjustment
location.
Adjustment
nut and
set screw
leadcrew
3. Engage the halfnut lever and manually rotate
the manual apron feed handwheel back and
forth slightly to test for end play. While you
are doing this, tighten the adjustment nut with
a 22mm wrench until all leadscrew-endplay is
removed.
4. tighten the set screw.