Grizzly G0751 Owner's Manual page 44

5. place the parallel block directly under spindle
and indicator across length of table, as illus-
trated in Figure 51.
Note: If you must reposition quill to accom-
modate the above step, then review tasks in
Step 2 to make sure mill is properly prepared
for tramming.
Table (Top View)
Indicator
Figure 51. setup for the X-axis adjustment.
Note: Generally, the goal is to get the differ-
ence of the indicator readings between ends
of the parallel bar down to 0.0005". However,
the acceptable variance will depend on the
requirements for your operation.
6. rotate spindle by hand so that the indicator
point rests on one end of parallel block, as
illustrated in Figure 51, then zero dial.
-42-
Parallel Block
Spindle
7. rotate spindle so that the indicator point
rests in the same manner on other end of
block, then read dial.
— if indicator dial still reads zero or is within
the acceptable variance, continue on with
Step 8.
— if indicator dial has moved from zero
beyond the acceptable variance, you will
need to compensate for that amount by
tilting head left or right. repeat Steps 6–7
until you are satisfied with spindle axis
alignment along table X-axis.
Tip: Keep one of the tilting hex nuts snug so
that the head does not move loosely while
you adjust it in small amounts.
8.
retighten tilting hex nuts.
Model G0751 (Mfg. Since 1/13)