This is a close up of the
vial, showing the ability to
adjust it for level. One side
is fixed permanently using
the socket screw and a
nylon washer under the
vial with Loctite.
Do not
adjust this side.
The right
side is where adjustments
for level are made, where
there are a stack of spring
washers between the vial
and the level body. The
adjusting screw is a fine
pitch thread, so adjusting
for level is relatively easy
even though the vial is
very accurate.
To level the cast iron top of
a saw table, place the
LTW level as shown to see
if the machine is fairly
close to level to begin with.
If the bubble is to the left,
then the left side of the
machine is high; to the
right, then the right side is
high.
At this point you have two
options: use feeler gages
or adjust the vial. We
cover how to do both in
the following pages.
Page 3