TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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c. Repair TM 9-1240-401-34&P 3-17. COVER ASSEMBLY MAINTENANCE INSTRUCTIONS (M118A2) - continued b. Disassembly 1 Remove incandescent lamp (8) from plate cover (9). 2 Remove holder (10) from plate cover (9). 3 Remove telescope subassembly (11) and sleeve spacer (12) from plate cover (9). 4 Remove preformed packing (13) from groove in plate cover (9) and discard. 1 Remove corrosion, grease, and dirt from all parts. Refer to TM 9-254 for cleaning instructions. 2 Visually inspect for missing and damaged parts. 3 Repair or replace parts in accordance with author- ized parts listed in appendix D. d. Assembly 1 2 3 4 5 6 7 Install sleeve spacer (12) on telescope subas- sembly (11). Install telescope subassembly (11) in plate cover (9) with windows alined. Apply sealing compound to outside threads of holder (10). Install holder (10) in plate cover (9). Install incandescent lamp (8) in holder (10). Apply adhesive to the groove on the bottom of plate cover (9) and to one side of new preformed packing (13). Install preformed packing (13) in plate cover (9). 3-22