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 129 of 219

TM 9-2350-274-BD

ARMAMENT AND FIRE CONTROL

Procedural Steps (Cont):

2.

Clean any blocked gas ports, if accessible.

3. Measure and record dimensions of damaged area.

NOTE

If damage is extensive, clamp should be made same

width as bore evacuator to ensure a proper seal.

4. Use acetylene torch to cut two 10- 1/2 inch long metal strips at least l-inch wider

than damaged area.

5. Shape each metal band to fit curve of bore evacuator. When metal bands are placed

around bore evacuator, a gap between 1/8 to 1/4-inch should exist between halves (see

illustration).

6. Remove bands from bore evacuator and line inside surface of each band with

asbestos paper or some other suitable fire resistant material.

7. Drill 3/8-inch evenly spaced holes in each end of both bands, set bands in place over

damaged area.

10-5