TM-9-2350-311-34-2

CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS HOWITZER, MEDIUM, SELF-PROPELLED, 155MM

TECHNICAL MANUAL; DIRECT AND GENERAL SUPPORT MAINTENANCE MANUAL

SEPTEMBER 1994

TM-9-2350-311-34-2 - Page 432 of 552

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