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4.
Install the indicator holder into the spindle or
onto the quill, then mount the indicator onto it
so that the point is as parallel to the block as
possible (see the illustration in Figure 33 for
an example).
Indicator
Holder
Dial Indicator
Parallel Block
Table
Figure 33. Dial indicator mounted.
5.
Place the parallel block directly under the
spindle and the indicator across the length of
the table, as illustrated in Figure 34.
Note: If you must reposition the quill to
accommodate the above step, then review
tasks in Step 2 to make sure the machine is
properly prepared for tramming.
Table (Top View)
Indicator
Figure 34. Setup for the X-axis adjustment.
Model G0757 (Mfg. Since 6/13)
Spindle
Parallel Block
Spindle
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 the spindle by hand so that the indi-
cator point rests on one end of the parallel
block, as illustrated in Figure 34, then zero
the dial.
7.
Rotate the spindle so that the indicator point
rests in the same manner on the other end of
block, then read the dial.
— If the indicator dial still reads zero or is
within the acceptable variance, continue on
with Step 8.
— If the indicator dial has moved from zero
beyond the acceptable variance, you will
need to compensate for
tilting the head left or right. Repeat Steps
6–7 until you are satisfied with the 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 the tilting hex nuts.
⁄
that amount by
1
2
-35-
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