Covering the politics, Business and technology of defense - Subscribe Today

TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download

Page 216 of 344

TM 9-1240-401-34&P 5-23. ADAPTER ASSEMBLY MAINTENANCE INSTRUCTIONS - continued a. Removal/Disassembly - continued 23 Remove two machine screws (46) and plate (47). 24 Remove two machine screws (48) and plate (49). 25 Remove headless shoulder pin (41) and plug (50). 26 Remove window (51) by pressing gently from backside of adapter assembly (10). 27 Remove window (52) and mask (53). Remove index (54) by pressing gently from backside of adapter assembly (10). b. Repair 1 Remove corrosion, grease, and dirt from all parts. Refer to TM 9-254 for cleaning instructions. 2 Visually inspect for missing or damaged parts. 3 Repair or replace parts in accordance with authorized parts listed in appendix D. c. Assembly/lnstallation 1 If removed, stake index (54) to adapter assembly (10). 2 Install mask (53) on adapter assembly (10) and stake in six places. 3 Apply sealing compound to edge of windows (52 and 51). 4 Install windows (52 and 51). Remove excess sealing compound. 5 Install plate (47) on adapter assembly (10) and secure with two machine screws (46). 6 Install plate (49) on adapter assembly (10) and secure with two machine screws (48). 7 Install plug (50) and headless shoulder pin (41). 5-42 Change 1