Disassemblyinspectionrepairreassembly cont

Check pin (1), barrel locking latch (2) and cap (5) for distortion, cracks, or excessive wear. Replace if distorted, cracked or excessively worn.

Check spring (3) for breaks, cracks, or distortion. Replace if spring if broken, cracked or permanently set.

(M240B/M240N): Check hinge pin (6) for bends, cracks or excessive wear. Replace if damaged or worn. Check spring (7) for breaks or distortion. Replace if damaged. Check detent (8) for wear. Replace if worn.

Check ejection port cover (9) for cracks or distortion. Replace if damaged.

11826304 Gage

1BL0344

1BL0344

11826299 Gage Headspace
1BL0345

Install detent (8), spring (7), ejection port cover (9) and hinge pin (6).

This task covers: a. Testing b. Trigger pull test c. Further testing d. Using Firing Pin Protrusion Gage to Measure Firing Pin Protrusion e. Final Inspection

INITIAL SETUP

Tools and Special Tools

Shop Set, Small Arms: Field Maintenance, Basic Less Power, PN SC 4933-95-CL-A11; SL-3-08724A (Marine Corps only); SL-3-00607A (Marine Corps only)

Tools and Special Tools (cont)

Firing pin protrusion gage, PN 11826304 Headspace warning gage, PN 11826299 Headspace reject gage, PN 11826274

Equipment Condition

Machine gun assembled (TM 9-1005-313-10).

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