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 273 of 828

TM 9–2350–311–20–2

5–17

10

Remove spindle assembly (18) from breechblock (1). Push on spindle (19) as necessary.

11

Remove the following from spindle (19): washer bearing (20), rear retaining ring (21), inner retaining ring

(22), obturator pad (23), and front retaining ring (24).

CAUTION

Do not apply oil or cleaning solvent to obturator pad to prevent damage to obturator pad.

12

Clean obturator pad (23) with soap and water. Dry with clean rags.

b.

Disassembly

Remove spring pin (25) and machine key (26) from spindle (19) shaft. Discard spring pin.

c.

Assembly

Install machine key (26) in spindle (19) shaft and secure with new spring pin (25).

19

24

23

22

21

20

18

19

19

25

26

1