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 429 of 552

TM 9-2350-311-34-2

d. Assembly

1

Invert commander’s cupola (4).

NOTE

Slot on inside of each bearing ring must be in line when bearing rings are assembled.

2

Install outer bearing ring (18), 12 new lockwashers (17), and 12 cap screws (16). Torque cap screws to 38

lb-ft (52 N·m).

NOTE

Some cupola race rings may have 128 white, cream, or yellow bearing balls and 128 pink or red

bearing balls. Install the white, cream, or yellow bearing balls alternately with 128 pink or red bearing

balls.

3

Install upper bearing ring (15) and 252 white or cream bearing balls (14).

4

Install lower bearing ring (13) and 12 cap screws (12). Torque cap screws to 35 lb-ft (47 N·m).

5

Install bearing shield (11) and 12 washer assembled screws (10).

10-5