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TM 9-1240-375-34&P
0054 00
INSTALLATION
NOTE
Check that correction and elevation counters are set at zero before installation of
counter assembly. Ensure scribe lines are aligned on M17/M18 quadrant housing
assembly.
3
1
4
2
1 fc 2 0 9
1.
Apply sealing compound (item 13, WP 0152 00) to threads of three machine screws (1).
2.
Place counter assembly (2) in housing assembly (3) and secure with three new lockwashers (4) (item 19,
5
7
6
1 fc 2 1 0
3.
Install correction knob assembly (5) and cover assembly (6). Refer to WP 0049 00 or WP 0050 00.
4.
Turn elevation knob (7) in one direction to 1433 mils.
5.
Turn elevation knob (7) in opposite direction to 9720 mils.
0054 00-11
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