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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). REASSEMBLY/INSTALLATION (CONT) NOTE Steps 21 thru 23 are written and illustrated for reassembly of counter assembly. 21 If required, drill through spur gear (30) and shaft on rotating counter (31). Ream hole and install tapered pin (32). Refer to TM 9-254. 22 Install spring (33), clutch half (34), key shaft (35), and gearshaft (36). 23 Install pin (37) through spur gearshaft (36) and shaft on rotating counter (31). 24 Wind up small gear on differential gear (38) 2 or 3 teeth and hold. 25 Install differential gear (38) on counter assembly (39), meshing gears. 26 If removed, install two headless shoulder pins (40), counter assembly (39), differential gear (38), two new lockwashers (41), and two screws (42). 2-48