Southbend ROTARY TABLE SB - Manual (Page 14)

-12-
Mfg. Since 10/09 SB1363-64/SB1367-68 O P E R AT i O n
Aligning Handwheel &
Vernier Scales
The handwheel scales can be
easily aligned with each other and
adjusted for easy viewing.
Tools needed Qty
Hex Wrench 5mm. . . . . . . . . . . . . . 1
To align and adjust the handwheel
and vernier scales:
1. Loosen the two set screws on
the vernier scale (see Figure 9),
rotate the vernier scale so that
it is in a convenient viewing
position, the re-tighten the set
screws.
Figure 9. Locations of the handwheel and
vernier scale set screws
Vernier Scale Set Screw
(1 of 2)
Handwheel Scale
Set Screw
2. Use the handwheel to rotate the
table until the 0° on the table
rotation scale aligns with the
center mark on the pointer (see
Figure 10).
Figure 10. Location of the rotation scale
pointer.
Rotation
Scale
Pointer
3. Loosen the set screw on the
handwheel (see Figure 9),
rotate the handwheel scale until
the 0° mark aligns with the 0°
mark on the vernier scale, then
re-tighten the set screw.
Using Vernier Scale
The vernier scale is used to measure
table rotation by 10" (ten arc
seconds) at a time.
Use your rotary table to follow along
with the example below to better
understand how to use the vernier
scale.
note: This example assumes the
table rotation position is at 0°, and
the handwheel and vernier scales
are aligned at 0°.
To set the table at 16° 32' 20":
1. With the table at 0°, rotate the
handwheel clockwise four full
turns, which will rotate the
table 16°.
— If you go past the handwheel
scale 0° mark on the fourth
turn, rotate the table
counterclockwise
1 ⁄
2
turn,
then start again.
note: When changing direction
with the handwheel, take into
account any backlash.