TM 9-1240-400-34&P
3-12.
FINAL INSPECTION INSTRUCTIONS (CONT).
EYEPIECE ASSEMBLY FOCUS INSPECTION AND ADJUSTMENT (CONT)
4
Place dioptometer (4) over eyepiece assembly
(5).
5
If minus 0.75 to minus 1.0 cannot be obtained,
move eyepiece assembly (5) in or out until reticle
(6) is at its sharpest point.
SETTING UP AND ADJUSTING TELESCOPE TEST FIXTURE
1
Secure telescope test fixture (1)
on
an
adjustable test stand of suitable height.
2
Position precision level (2) on telescope test
fixture (1).
3
Adjust telescope test fixture (1) until level bubble
(3) is centered.
4
Remove precision level (2).
5
Hang a plumbline at a convenient distance.
3-20
