Adjusting Handwheel Scale; Adjusting Indexing Scale; Adjusting Vernier Scale - Grizzly T25937 Owner's Manual

Adjusting
Handwheel Scale
The handwheel scale (see Figure 6) can be
repositioned without rotating the handwheel. This
helps when aligning all of the zeros at the begin-
ning of the job.
Figure 6. Adjusting the handwheel scale.
The scale collar is marked in whole degrees and
has a resolution of 2' (2 arc minutes). For every full
rotation of the handwheel, the indexing scale on
the rotary table moves 4°.
To adjust the collar, loosen the set screw (see
Figure 7) securing the collar to the handwheel,
then rotate the collar to the desired alignment.
Figure 7. Location of collar set screw.
Model T25937 (Mfd. Since 3/16)
The degree scale is marked on the edge of the
rotary head in 1° increments (see Figure 8). The
zero point can be synchronized with the handwheel
to start the table indexing at 0° by using the index
marker as a starting point.
Scale
Collar
The handwheel dial is marked in degrees with
divisions in 2 minutes (2'). The vernier scale is
marked with graduations of 20 seconds (20") (see
Figure 9). The scale is attached to the backlash
adjustment lever collar and is positioned accord-
ing to the backlash setting.
Set
Screw
Adjusting
Indexing Scale
Rotary
Head
Index
Marker
Degree
Scale
Figure 8. Location of degree scale.
Adjusting
Vernier Scale
Vernier
Scale
Figure 9. Location of vernier scale.
Backlash
Adjustment
Lever
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