Table Lift Screws - Grizzly G0459P Owner's Manual

table Lift Screws

tools Needed:
hex Wrench 6mm .............................................. 1
Wrench/socket 12mm ....................................... 1
Chalk, Correction Fluid, or paint ....................... 1
phillips head screwdriver #2 ............................ 1
Flat head screwdriver ....................................... 1
the table lift screws are connected by a chain and
driven by the crank handle. (When the chain is
removed from a sprocket on one of the lift screws,
that lift screw can adjust that portion of the table
up/down independently to assist in setting the
table parallel to the drum.)
adjusting the table lift screws will only be neces-
sary if you need to adjust the drum height more
than allowed at the pillow block bearing adjust-
ments, or if you have removed the table or chain
(see Page 41) during a service procedure and you
need to reset the drum parallel to the table.
each complete tooth rotation on the sprocket rep-
resents 0.007" or .18mm of table elevation move-
ment. For example, if the rear of the table was
0.007" low, rotate both rear table lift screws to the
next sprocket tooth in the same chain position.
you can easily rotate the sprockets from the top of
the table lift screws with a flat head screwdriver.
to adjust the table lift screws:
1. disConneCt poWer to the sander!
2. open the right side and front panels.
3.
raise the table up to at least the 1" mark on
the height scale.
4. at the lift screw that needs to be adjusted,
mark the end of a sprocket tooth and the
chain hole where that tooth is meshed, as
shown in figure 38.
NOTICE
Marking chain and sprocket locations will
save you a substantial amount of time when
you re-install the chain. Make sure you have
done this before removing the chain.
model g0459/g0459p (mfg. 7/11+)
Qty
figure 38. marking sprocket tooth and chain.
5. loosen the chain by loosening the hex nut on
the bottom of the idler roller sprocket shown
in figure 39.
figure 39. idler roller sprocket.
6.
Carefully move the chain off of only the
marked sprocket.
7. Keep track of the marked chain hole and
rotate the sprocket the necessary number of
teeth away from the marked one to meet the
difference in height needed.
8. Fit the chain back over the sprocket, making
sure the new sprocket tooth is inserted into
the marked chain hole.
9.
re-tension the chain and check the new
height setting.
10. repeat Steps 5–9 as needed until the table
height is parallel to the drums in all four cor-
ners, tighten the idler sprocket and calibrate
the scale pointer.
-37-