While sighting through eyepiece (3), rotate
deflection knob (4) and elevation knob (5), until
reticle coincides with projector collimator (6).
Rotate deflection knob (4), clockwise, until
Check that line of sight does not deviate from
horizontal by more than 1.0 mil.
counterclockwise, until reticles coincide.
Check that line of sight changes no more than
0.5 mil from reading in step 5.
Repeat steps 3 thru 8 until head assembly (7)
has made 2 full revolutions.
If level travel exceeds tolerance specified on
page 2-74, check mounting surfaces of M115
panoramic telescope (8) and adapter fixture (9)
for dirt, nicks, or burrs. If none of above
conditions exist, adjust optic cell assembly.
Overtightening of plugs will cause
binding in deflection mechanism.
Check lift tolerance. If lift exceeds tolerance
specified on page 2-74, loosen setscrews and
tighten plugs in cover (10).