TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-401-34&P 5-22. COUNTER ASSEMBLY 7660610 MAINTENANCE INSTRUCTIONS This task covers: a. Removal b. Repair c. Installation INITIAL SET-UP Tool Kit, Electronic System, Repair, Field Mainte- nance (SC5180-95-CL-B29) 5180-01-168-0487 M117/M117A2 panoramic telescope removed from howitzer (TM 9-2350-311-10/ Parts TM 9-2350-314-10) Adhesive (Item 2, appx B) Gasket (Item 5, appx E) Grease (Item 7, appx B) Azimuth knob removed (ref. para 5-13) Lockwashers (4) (Item 65, appx E) Preformed packing (Item 34, appx E) Plate for azimuth knob removed (ref. para 5-13) Shims (4) (Item 48, appx E) Gunner's aid knob removed (ref. para 5-13) References Correction counter cover removed (ref. para TM 9-254 5-13) a. Removal 1 2 3 4 5 Remove machine screw (1) and reset counter knob (2). Remove two machine screws (3), access cover (4), and gasket (5) from lower housing (6). Remove preformed packing (7) from access cover (4). Dis- card preformed packing and gasket. Remove two machine screws (8), two machine screws (9), four lockwashers (10), and counter as- sembly (11) from lower housing (6). Discard lock- washers. Remove four shims (12) from lower housing (6) or the mating surface of counter assembty (11). Dis- card shims. Remove two headless straight pins (13) from lower housing (6), only if damaged. 5-37