Tm 9-1005-212-10

Malfanctior

Probaiwe caujfc-

Corrective *ction

Failure to fire i -

5. Failure to unlock

6. Failure to extract

7. Failure to eject

8. Failure to cock

9. Uncontrolled automatic fire

10. Failure to load

11- Ruptured primers 12. Sluggish operation

I- Failure to traverse

2. Machine gun not secured to moamt

3. Legs fail to stay open or locked

Defective firing pin b. Defective trigger c- Sear spring weak or broken d. Faulty engagement of firing pin and sear notch e. Defective firing pin spring f. Improper timing g. Defective barrel extension a. Defective breech lock b. Faulty breech lock cam dearance a. Defective T—slot b. Defective extractor a. Defective firing pin b. Defective ejector c- Defective ejector spring a. Defective cocking lever b. Defective firing pin sear notch c. Defective cocking lever pin <L Defective sear e. Defective sear spring a- Defective sear b. Defective trigger c. Defective firing pin a. Defective belt holding pawl or spring b. Defective feed pawl or spring c* Defective belt feed lever Elongated firing pin hole a* Improper timing b* Burred parts Tripod Mount a- Defective traversing handwheel b- Defective traversing and elevaiing mechanism assembly a* Defective quick release pin b. Defective pintle lode c. Defective traversing and elevating mechanism assembly d* Defective tripod mount pintle a* Defective sleeve iatch b+ Defective sleeve lock spring a. Replace b, Replace c- Replace d. Replace e- Evacuate to direct support maintenance f. Evacuate to direct support maintenance g. Evacuate to direct support maintenance a. Evacuate to direct support maintenance b. Evacuate to direct support maintenance a. Replace breechhoilt b. Replace a. Replace b. Evacuate to direct support maintenance c- Evacuate to direct support maintenance a. Replace b. Replace c. Replace d. Replace e. Replace a. Replace b- Replace c> Replace a. Replace b. Replace c. Replace Replace breechbolt a. Evacuate to direct support maintenance b. Remove burs a. Evacuate to direct maintenance b. Evacuate to direct maintenance a. Evacuate to direct maintenance b. Evacuate to direct maintenance c. Evacuate to direct maintenance d. Evacuate to direct maintenance a. Evacuate to direct maintenance b. Evacuate to direct maintenance support support support support support support support support

Section VI. ORGANIZATIONAL MAINTENANCE PROCEDURES

Inspect components for rust, corrosion, burs, scored area 5 or foreign matt ex and remove. Inspect spring's for deformation and replace if necessary. Inspect for damage to threads of screws, bolts, and other components. Inspect for appearance, proper assembly and functioning. Repair or replace unserviceable parts as authorized.

Note. Mainte71aTi.ce of some groups and assemblies are noc authorized by the maintenance allocation chart (app C) to organizational maintenance. Insure that no work is being accomplished beyond the scope authorized to organizational maintenance. Evacuate to direct and general support maintenance for repairs vrhen necessary.

2—8. Removal/Installation of Major Groups and Assemblies

Refer to TM 9-1005-212-10 for procedures on removal and installation of major groups and assemblies of Caliber .30 Machine Guns, M1919A4 and M1919A6 and Tripod Mount , M2. Instructions for Caliber .30 Machine Gun, MS7 are contained in the pertinent vehicle operator's manuals.

2-9. Disassembly/Assembly of Major Groups and Assemblies

Disassemble/assemble ir. accordance with illustrations in appendix B. Refer to figure 2-1 for use of socket wrench 6147277 to remove barrel bearing from Machine Guns, M1919A6 and MS7.

2—10. Cleaning, Inspection and Repair a. Cleaning.

Note. During periods of inactivity, clean and lubricate every 90 days unless inspection reveals more frequent servicing is necessary.

(1) Refer to TM 9-1005-212-10 for a list of cleaning materials used in conjunction but not issued with this equipment.

{2) For specific cleaning instructions on Machine Guns, M1919A4 and M1919A6, and Tripod Mount, M2, refer to TM 9-1005-212-10.

(S) Refer to the pertinent vehicle operator's manual for instructions on cleaning Machine Gun, M37.

(4) On component parts which contain a hard carbon residue it may be necessary to clean

Photo Browning Machine Gun Cal30
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