TM-9-1240-400-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-400-34&P 5-8. MAINTENANCE OF UPPER TELESCOPE MOUNT ASSEMBLY (CONT). DISASSEMBLY (CONT) 9 Remove contact assembly plunger (20) and nonmetallic seal (21) from housing (9) and unsolder electrical wire (22). 10 Unsolder two electrical wires (22) from two electrical contacts (23). 11 Remove boot (24), hexagon nut (25), and toggle switch (26) from housing (9) with electrical wires (22) attached. 12 Unsolder electrical wires (22) from toggle switch (26). 13 Remove screw (27) and terminal lug (28) and unsolder electrical wire (29). 14 Remove screw (30), headless shouldered pin (31), elevating plate (32), and electrical shell (33) from bushing insulator (34). 15 Unscrew and remove bushing insulator (34) and attached parts as a unit. 16 Unsolder and remove electrical wires (29) and (11). 17 Remove two hexagon nuts (35), two terminal lugs (36), and two electrical contacts (37). CLEANING Clean all parts per TM 9-254. REPAIR 1 Extension light is a repairable assembly; refer to page 5-17. 2 Repair is by replacement of authorized parts as required. Refer to appendix B. 5-14