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Adjusting Handwheel
Scale
The rotary table scale collar is marked in whole
degrees and has a resolution of 1 arc second (
of 1°). For every full rotation of the handwheel, the
indexing scale on the rotary table moves 4°.
The handwheel scale (see Figure 7) can be
repositioned without rotating the handwheel. This
helps when aligning all of the zeroes at the
beginning of a job.
Rotary Table
Scale Collar
Figure 7. Rotary table scale collar index.
Items Needed
Hex Wrench 3mm .............................................. 1
1.
To adjust collar, loosen set screw (see
Figure 8) securing collar to handwheel, then
rotate collar to desired alignment.
Set
Screw
Figure 8. Location of collar set screw.
2.
When finished, tighten set screw to secure
collar.
Model T1243 (Mfd. Since 02/18)
Adjusting Indexing
The degree scale is marked on the edge of the
rotary table in 1° increments (see Figure 9). The
⁄
1
60
zero point can be synchronized with the handwheel
to start the table indexing at 0° by using the index
marker as a starting point.
The index marker position for the rotary table can
be adjusted within +/-2.5° by loosening the thumb-
screw and moving the marker.
Index
Marker
Figure 9. Location of degree scale.
Qty
Mounting Table
The T1243 comes with (3) M10-1.5 x 60 T-bolts,
(3) M10-1.5 hex nuts, (3) 10mm flat washers, and
(3) hold-down clamps for mounting horizontally to
a milling machine table. Use the supplied hard-
ware to mount the T1243 to milling machine tables
with spacing up to 4" on center between
T-slots.
To mount the T1243 to tables with T-slots
spaced wider than 4" on center, or with
T-slots wider than
clamps (available separately).
Scale
Degree
Scale
Thumbscrew
Horizontally
⁄
", use step blocks and
1
2
⁄
" or
⁄
"
7
1
16
2
-9-
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