Chapter 4 Angular Measurements
Angular Position Measurements
Measurements Reference Guide 4-51
10 Back the post assembly away from the adapter, so it does not exert any
force on the clutch control shaft.
11 Tighten the clutch breakaway nut on the clutch control shaft against the
top of the angular position measurements fixture.
This locks the clutch in its engaged position, and prevents any load from
the linkage hardware from affecting the shaft’s position.
12 Fasten the adapter to the stub post at the end of the post assembly, using
the spherical washers and bolt provided.
13 Tighten the post assembly in the spindle.
14 Loosen the clutch breakaway nut and run it about 5 mm (1/4-inch) along
the clutch control shaft.
15 Disengage the locking loops that have been holding the top and bottom of
the precision index table together.
16 Proceed to the “Mounting the fixed optic” instructions below.
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