TM-9-1240-400-34-P
TELESCOPE; PANORAMIC: M115, ELBOW: M139, MOUNT: M138 AND M137
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1993
TM-9-1240-400-34-P - Page 91 of 344
LEVEL TRAVEL AND LIFT INSPECTION
NOTE
•
LEVEL TRAVEL
Line of sight shall not deviate in elevation from a horizontal target line by more than + 1.0 mil (total
excursion of 2 mils) when head is rotated through at least 2 full revolutions of travel.
•
LIFT
Displacement of the horizontal line of sight, due to reversing direction of head rotation, shall not exceed
0.5 mil while observing reticle.
1
Set azimuth ring (1) to "0" coincidence on azimuth testing fixture (2).
2-74
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