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 TM 9-1240-375-34&P
0050 00
18.
Unscrew and remove spring plug retainer (33) from housing assembly (3).
19.
Remove O-ring (34) and key washer (32) from spring plug retainer (33). Discard O-ring.
20.
Remove compression helical spring (35) and V-type bearing (36) from housing assembly (3).
CAUTION
Support elevation knob in V block on solid surface to prevent damage to worm shaft
assembly.
38
39
37
1 fc 1 3 7
M17A1/M18A1 Quadrant
21.
Remove headless straight pin (37) and elevation knob assembly (38) from worm shaft assembly (39).
39
42
41
40
1 fc 1 3 8
M17A1/M18A1 Quadrant
22.
Remove spring tension washer (40), packing retainer (41), and O-ring (42) from worm shaft assembly
(39). Discard O-ring and spring tension washer.
0050 00-7
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