TM-9-2350-311-10

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

TECHNICAL MANUAL; OPERATOR’S MANUAL

NOVEMBER 1994

TM-9-2350-311-10 - Page 469 of 775

TM 9--2350--311--10

3--65

3--6

ARMAMENT AND CAB MAINTENANCE — CONTINUED

3--6.8

Breech Mechanism — Continued

a. Disassembly — Continued

NOTE

Step 21 is for the M35 firing mechanism on the M109A2/M109A3/M109A4 M185 cannon assembly.

21

Disassemble M35 firing mechanism.

(a)

Place firing mechanism (2) on solid surface.

(b)

Depress follower (40) until grooved pin (41) can be removed from manual control lever (42) and

rod end clevis (43).

(c)

Separate follower (40) and case (44) from sear group (45).

(d)

Remove two springs (46 and 47).

(e)

Remove grooved pin (48) from rod end clevis (43) and separate firing hammer (49), hammer guide

cup (50), firing spring (51), and sear (52).

2

40

41

42

43

44

46

50

51

45

47

48

49

52