TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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11 12 13 14 15 16 17 18 19 20 Install bearing (15), sleeve spacer (14), bearing (13), and new self-locking nut (12) on shouldered shaft (4). Install shouldered shaft (4) with related parts in the telescope mount bracket and secure with threaded ring (11 ). Tighten threaded ring (11) to allow shoul- dered shaft (4) to rotate without binding. Stake threaded ring (11). Install bevel gear (10) on shouldered shaft (4) and secure with tapered pin (9). Apply oil to flat washer (3) and install in pitch knob (2). Install pitch knob (2) on shouldered shaft (4) and secure with tapered pin (1). Install cover (8) and secure with six flat washers (7), six new lockwashers (6), and six machine screws (5). If removed, install plug (36). Install two stops (35). Install two channels (32) using two new lock- washers (34) and two machine screws (33) for each channel. Install bevel gear (30) onto shaft of housing (31) and secure with tapered pin (29). TM 9-1240-401-34&P I c. Assembly - continued I 4-35