TM 9-2350-311-34-2
b. Inspection
1
Measure outside diameter of breech cam pin (5) bearing surface. Replace if less than 0.748 inch (18.999
mm).
2
Measure inside diameter of left hinge pinhole of breech cam (6). Replace breech cam if greater than 0.7505
inch (19.06 mm).
3
Inspect breech cam (6). Replace if there are any cracks or if cam path is distorted.
c. Assembly/Installation
1
Install cam stop (16), flat washer (15), and new self-locking nut
(14) at mount below hinge (11).
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