TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-401-34&P 4-19. M145/M145A1 TELESCOPE MOUNT MAINTENANCE INSTRUCTIONS I This task covers: a. Disassembly b. Repair c. Assembly lTIAL SET-UP Tool Kit, Electronic System, Repair, Field Mainte- nance(SC5180-95-CL-B29) 5180-01-168-0487 TM 9-254 . aterials/Parts . . ment Condition Grease (Item 6, appx B) Lockwashers (10) (Item 68, appx E) M145/M145A1 telescope mount removed Oil, lubricating (Item 9, appx B) from howitzer (TM 9-2350-311-20-2/ Sealing compound (Item 13, appx B) TM 9-2350-314-20-2) Self-locking nut (Item 12, appx E) Self-locking nut (Item 16, appx E) Counter box assembly removed (ref. para 4-20) 1 a. Disassembly I 1 Drive out tapered pin (1); remove pitch knob (2) and flat washer (3) from shouldered shaft (4). 2 Remove six machine screws (5), six Iockwashers (6), six flat washers (7), and cover (8). Discard Iockwashers. 3 Drive out tapered pin (9) from bevel gear (10) and shouldered shaft (4). 4 Remove threaded ring (11) and slide out shoul- dered shaft (4) and related parts. Remove bevel gear (10) from shouldered shaft (4). 5 Remove self-locking nut (12), bearing (13), sleeve spacer (14), and bearing (15) from shouldered shaft (4). Discard self-locking nut. 6 Remove plug (16), spring (17), and V-bearing (18). 7 Remove setscrew (19). 4-32