TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-401-34&P 12 Remove plug (26) and spring (27). 13 Remove setscrew (28) and post (29). 14 Remove detent plunger (30). 15 Remove headless straight pin (31), door (32), and spring (33). 16 Remove two machine screws (34) and protective cap (35) from overlay assembly (36). 17 Pull wire (37) with lamp base through to the front of the overlay assembly (36). 18 Using 11/16 and 45/64 inch tubular spanner wrench, remove retaining ring (38) and remove overlay assembly (36) from adapter assembly (10). 19 Using 1/2 and 33/64 inch tubular spanner wrench, remove externally threaded ring (39). 20 Unsolder electrical lead (40) from headless shoulder pin (41). 21 Remove electrical lead (40) and lens (42). 22 Remove two machine screws (43), two lockwashers (44), and azimuth rotating counter (45) from adapter assembly (10). Discard lockwashers. Change 1 5-41