Symptom

Sluggish operation. MALFUNCTION

Receiver (1) dirty and/or lack of lubricant. CORRECTIVE ACTION Clean and lubricate (TM 9-1005-313-10).

1BL0012

1BL0015

SYMPTOM (cont)

Sluggish operation (cont). MALFUNCTION

Loose rivets causing drag on bolt/operating rod assembly. CORRECTIVE ACTION

Send to direct support maintenance for code out and turn in. SYMPTOM Failure to feed.

MALFUNCTION Insufficient gas pressure. CORRECTIVE ACTION

Clean gas port hole (1), gas inlets (2), and gas plug (3) (TM 9-1005-313-10).

1BL0017

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