TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-401-34&P 5-20. CELL ASSEMBLY MAINTENANCE INSTRUCTIONS This task covers: a. Disassembly b. Repair c. Assembly Condition T-UP Tools Tool Kit, Electronic System, Repair, Field Mainte- nance (SC5180-95-CL-B29) TM 9-254 5180-01-168-0487 Tubular spanner wrench, 1 and 1-1/64 inch (Item 27, appx F) Tubular spanner wrench, 1-3/32 and 1-7/64 inch (Item 28, appx F) . Materials/Parts Sealing compound (Item 13, appx B) M117/M117A2 panoramic telescope removed from howitzer (TM 9-2350-311-10/ TM 9-2350-314-10) Cell assembly removed from elbow assembly (ref. para 5-19) a. Disassembly I 1 2 3 Using 1-3/32 and 1-7/64 inch tubular spanner wrench (item 28, appx F), remove threaded ring (1) from cell (2). Using 1 and 1-1/64 inch tubular spanner wrench (item 27, appx F), remove threaded ring (3) from cell (2). Remove lens (4), spacer (5), and lens (6) from cell (2). Mark lenses (4 and 6) for reference during assembly (ref. TM 9-254). I b. Repair I 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 author- ized parts listed in appendix D. 5-34