TM 9-2320-280-34
14-4. SUPPORT RING MAINTENANCE (Cont'd)
b. Disassembly
1. Remove four screws (4), washers (3), and two 'B" pillar support covers (1) from connecting
blocks (5).
2. Remove four spring pins (6) and two connecting blocks (5) from two upper supports (2). Discard
spring pins (6).
3. Remove six locknuts (7), washers (8), capscrews (10) and washers (8) from two upper
supports (2) and support ring (9). Discard locknuts (7).
4. Remove two spring pins (11) and two upper supports (2) from support ring (9). Discard spring
pins (11).
5. Remove eighteen capscrews (14), washers (15), and three turret lockrings (13) from support ring (9).
6. Remove four bushings (12) from support ring (9). Inspect bushings (12) for damage. Replace if
damaged.
c. Assembly
1. Install four bushings (12) on support ring (9).
2. Install three turret lockrings (13) on support ring (9) with eighteen washers (15) and capscrews (14).
Tighten capscrews (14) to 37 lb-ft (50 N.m).
3. Install two upper supports (2) on support ring (9) with six washers (8), capscrews (10), washers (8),
and locknuts (7). Finger tighten locknuts (7).
4. Install two connecting blocks (5) on upper supports (2).
5. Install two 'B" pillar support covers (1) on connecting blocks (5) with four washers (3) and
screws (4). Finger tighten screws (4).
14-8
