TM-9-2350-311-20-2

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS

DECEMBER 1993

TM-9-2350-311-20-2 - Page 591 of 828

TM 9–2350–311–20–2

14–27

b.

Disassembly

1

Remove four sleeve bearings (7) from left bustle door (6) and discard.

2

Remove two cap screws (8), two lockwashers (9), locking bar slide (10), plate spacer (11), and shim(s) (12)

from left bustle door (6). Discard lockwashers and shims.

3

Remove two cap screws (13), two lockwashers (14), catch strike (15), wear plate (16), and shim(s) (17) from

left bustle door (6). Discard lockwashers and shims.

4

Remove self-locking nut (18), thrust washer bearing (19), clevis assembly (20), and thrust washer bearing

(21) from left bustle door (6). Discard self-locking nut.

5

Repeat steps 1 through 4 for right bustle door (4).

6

Remove self-locking nut (22), flat washer (23), flat washer (24), rim latch (25), and flat washer (26) from left

bustle door (6) only. Discard self-locking nut.

20

7

19

18

21

17

16

15

14

13

12

11

10

9

8

26

25

24

23

22

6