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Azimuth Correction Inspection - continued
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TM-9-1240-375-34-P Quadrant Fire Control: M17 (1290-01-037-3883) and M17A1 (1290-01-515-8260); Mount Telescope and Quadrant: M171 (1240-01-039-7273) Manual
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Torque Inspection - continued
TM 9-1240-375-34&P
0073 00
Table 2. Azimuth Correction Data.
Reference
Cant angle
Azimuth correction
Tolerance
elevation
(mils)
(mils)
(mils)
(mils)
300
88.9
27.0
0.3
600
88.9
59.6
0.7
900
88.9
108.8
1.5
1200
88.9
216.8
1.8
300
177.8
54.5
0.6
600
177.8
120.3
1.0
1100
177.8
342.4
2.0
NOTE
When M171/M171A1 mount is canted 88.9 and 177.8 mils below zero, the azimuth
corrections will be added to the 4800-mil azimuth counter reading. When
M171/M171A1 mount is canted 88.9 and 177.8 mils above zero, the azimuth corrections
will be subtracted from the 4800-mil azimuth counter reading.
Torque Inspection
1
2
1 fc 4 8 0
1.
Place torque adapter (1) on torque wrench (2).
2
1
3
1 fc 4 8 1
2.
Place torque wrench (2) with torque adapter (1) over cross level knob (3). Torque required for
continuous movement (running torque) must be between 4 in.-lb (0.45 N-m) and 12 in.-lb (1.35 N-m).
0073 00-37

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