Inspection Continued

2. INSPECT MUZZLE BRAKE.

a. Visually inspect muzzle brake (3) for cracks or evidence of cross threading. If cracks or cross threading are found, replace muzzle brake.

b. Visually inspect muzzle brake (3) for corrosion. If corrosion is found, remove corrosion with abrasive cloth and apply solid film lubricant.

3. INSPECT SPANNER NUT.

Visually inspect spanner nut (4) for cracks or evidence of cross threading. If cracks or cross threading are found, replace spanner nut.

4. INSPECT MACHINE KEY.

Visually inspect machine key (5) for cracks or deformation. If cracks or deformation are found, replace machine key.

3. INSPECT LOCKING TAB WASHER.

Visually inspect locking tab washer (6) for cracks or breaks. If cracks or breaks are found, replace locking tab washer.

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