TM-9-1240-400-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-400-34&P 2-14. MAINTENANCE OF ADAPTER ASSEMBLY AND COUNTER ASSEMBLY (CONT). REMOVAL/DISASSEMBL Y (CONT) NOTE • Steps 7, 9, and 10 are written and illustrated for removal and disassembly of counter assembly. • Remove pins only if damaged. 7 Remove two screws (20), two lockwashers (21), counter assembly (22), and two pins (23) from adapter (4). 8 Remove differential gear (24). NOTE Depress key shaft (25) and rotate gearshaft (19) to gain access to pin (26). 9 Remove pin (26), gearshaft (19), key shaft (25), clutch half (27), and spring (28). 10 Remove tapered pin (29) and spur gear (30) from rotating counter (31). 11 Remove two screws (32) and cap (33) from adapter (4). 12 Unsolder wire (34) from contact (35). 13 Remove contact (35) and plug (36). 2-44