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 482 of 775

TM 9-2350-311-10

3-6 ARMAMENT AND CAB MAINTENANCE — CONTINUED

3-6.8

Breech Mechanism — Continued

c. Assembly — Continued

NOTE

Step 24 applies to M35 firing mechanism on M109A2/M109A3/M109A4 M185 cannon assembly.

24 Assemble M35 firing mechanism.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

Assemble sear (52) and firing spring (51).

Aline hole in rod end clevis (43) with hole in hammer guide cup (50). Install firing hammer (49) into

hammer guide cup and rod end clevis.

Install sear (52) and firing spring (51) using grooved pin (48) on rod end clevis (43).

Install two springs (47 and 46) on rod end clevis (43).

Install case (44) and follower (40) on sear group (45).

Depress follower (40).

Install pin (41) in manual control lever (42) and rod end clevis (43).

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