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 20 of 344
TM 9-1240-400-34&P
2-5.
CATEGORIES OF INSPECTION (CONT).
Table 2-1.
INITIAL INSPECTION-Ml15 PANORAMIC TELESCOPE (CONT)
ITEM
ITEM T0
NO.
BE INSPECTED
PROCEDURE
11
Elevation Knob
Use torque wrench and torque adapter (8213928) to
rotate from midpoint in each direction.
The knob
shall operate within 0.50 to 2.50 in.-lb (0.06 to 0.28
N-m) of torque.
12
Reset Counter Knob
Use torque wrench and torque adapter (8599920) to
push in and rotate the knob counterclockwise.
Running torque required to rotate knob shall not
exceed 2.50 in.-lb (0.28 N-m) of torque.
13
Gunner’s Aid Knob
Rotate knob in both directions while observing effect
on gunner’s aid counter.
Counter indications must
increase or decrease as knob is rotated.
Using
torque wrench and torque adapter (8213929) rotate
knob in each direction.
Knob shall operate within
10 to 4.00 in.-lb (0.11 to 0.45 N-m) of torque.
14
Gunner’s Aid Counters
Rotate gunner’s aid knob to stop in both directions.
Counters (L and R) must each have an excursion of
50 mils in each direction before contacting the stops
at each extreme of the counter setting.
15
Deflection Counter
Rotate deflection knob clockwise, and then counter-
clockwise, while observing effect on counter.
Counter indication must increase when knob is
turned clockwise, and decrease when knob is turned
counterclockwise.
2-4
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