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TM-9-1240-400-34&P Technical Manual for M109 Telescopes and Mounts Download

Page 133 of 344

TM 9-1240-400-34&P 4-7. MAINTENANCE OF M138 TELESCOPE MOUNT (CONT). DISASSEMBLY (CONT) 11 Using adjustable spanner wrench, remove plain round nut (25), shims (26 and 27), if present, and adapter (8) from bracket assembly (28). 12 Remove pin (29). CLEANING Clean all parts per TM 9-254. REPAIR 1 Support assembly is a repairable assembly; refer to page 4-11. 2 Bracket assembly is a repairable assembly; refer to page 4-13. 3 Repair is by replacement of authorized parts as required. Refer to appendix B. REASSEMBLY 1 Install pin (1). 2 Apply sealing compound (item 10, appx C) to threads of plain round nut (2). 3 Using adjustable spanner wrench, install adapter (3), shims (4 and 5) if removed, and plain round nut (2) to bracket assembly (6). 4-8