TM-9-2350-274-BD

M109/M110/M578 VEHICLES HOWITZER, MEDIUM, SELF-PROPELLED FULL-TRACKED

TECHNICAL MANUAL; OPERATORS, ORGANIZATIONAL DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

JANUARY 1984

TM-9-2350-274-BD - Page 125 of 219

TM 9-2350-274-BD

ARMAMENT AND FIRE CONTROL SYSTEM

Location and Description of Howitzer Cannon and Mount Components

1.

Howitzer cannon M185 or M284

2.

Muzzle brake

3.

Muzzle brake locking ring

4.

Evacuator

5.

Torque key (hidden)

6.

Upper rotor shield

7.

Upper recoil cylinder

8.

Dust shield

9.

Recuperator

10.

Lower rotor shield

11.

Howitzer mount M178 or M182

12.

Breech operating handle

13.

Lower recoil cylinder

14.

Trunnion

15.

Buffer (hidden)

16.

Breech operating cradle cam

M109 Cannon and Mount

Change 3

10-3