TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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3-42 TM 9-1240-401-34&P 3-25. RETICLE CAGE ASSEMBLY MAINTENANCE INSTRUCTIONS (M118A2) This task covers: a. Removal b. Repair c. Installation INITIAL SET-UP Tools and Special Tools Spanner wrench, fabricated (fig. C-6, appx C) Tool Kit, Electronic System, Repair, Field Mainte- nance (SC5180-95-CL-B29) 5180-01-168-0487 aterials/Parts Grease (Item 7, appx B) Lockwashers (8) (Item 68, appx E) Preformed packing (2) (Item 23, appx E) TM 9-254 M118A2 elbow telescope removed from howitzer (TM 9-2350-311-10) Reticle cage and cant corrector subassembly removed from eyepiece and erector lens subas- sembly (ref. para 3-21) a. Removal 1 2 3 4 Remove eight cap screws (1), eight Iockwashers (2), two access covers (3) and two preformed packings (4) from both sides of housing (5). card preformed packings and Iockwashers. Remove threaded ring (6) from housing (5), fabricated spanner wrench. Dis- using Remove reticle cage assembly (7) from housing (5) being careful not to damage wiring harness (8). Remove machine screw (9) and clamp (10). Re- lease wiring harness (8) from side of the reticle cage assembly (7). b. Repair 1 Visually inspect for missing or damaged parts. 2 Repair or replace parts in accordance with author- ized parts listed in appendix D.