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 131 of 219

TM 9-2350-274-BD

ARMAMENT AND FIRE CONTROL SYSTEM

Procedural Steps (Cont):

4. Use acetylene torch to cut a patch from sheet metal 1/4 to 1/2-inch larger than damaged area (items

A and D).

5. Shape patch to fit curve of bore evacuator.

6. Wire brush both mating surfaces.

7. Set and secure patch in place over damaged area.

CAUTION

If arc welding on turret, ground welding equipment to turret

only, Parts of slipring and race bearings can be damaged from

high currents conducted between hull and turret if welding

equipment is not grounded correctly.

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