TM-9-2350-311-34-2 Maintenance Manual for Volume 2 M109 Cab Download
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TM 9-2350-311-34-2 11-1 M15 QUADRANT MOUNTING BRACKET This task covers: a. Removal b. Installation INITIAL SETUP Tools Artillery and turret mechanic’s tool kit (SC 5180-95-CL-A12) Artillery field maintenance tool kit (SC 4933-95-CL-A06) Level, cross test (item 8, Appx F) Quadrant, M1A1 gunner’s (item 14.1, Appx F) Materials/Parts Lockwashers (4) (item 86, Appx E) Pin assemblies (2) (item 157, Appx E) Equipment Condition M15 elevation quadrant removed (TM 9-2350-311-20-2) a. Removal 1 Remove four cap screws (1) and four lockwashers (2) from M15 quadrant mounting bracket (3). Discard lockwashers. 2 Loosen nuts on two pin assemblies (4). Tap two pin assemblies in with brass hammer. Remove M15 quad- rant mounting bracket (3) with two pin assemblies. 3 Remove two pin assemblies (4), headless straight pin (5) and quadrant ring (6) from M15 quadrant mount- ing bracket (3). Discard pin assemblies. b. Installation 1 Make certain that all mating surfaces of M15 quadrant mounting bracket (3), cannon trunnion (7) and bear- ing retaining plate (8) are free of dirt, grease, and burrs. 2 Install M15 quadrant mounting bracket (3), four new lockwashers (2) and four cap screws (1). Hand tighten four cap screws only; do not tighten to final torque. 3 Install quadrant ring (6) on M15 quadrant mounting bracket (3) alining reference marks on quadrant ring with reference marks on M15 quadrant mounting bracket. 11-2 Change 2