TECHNICAL MANUAL, UNIT AND DIRECT SUPPORT MAINTENANCE MANUAL FOR MACHINE GUN, 5.56MM, M249 w/EQUIP, (AR ROLE), (LMG ROLE), Plus 500 free US military manuals ... field manuals when you sample this book

TECHNICAL MANUAL, UNIT AND DIRECT SUPPORT MAINTENANCE MANUAL FOR MACHINE GUN, 5.56MM, M249 w/EQUIP, (AR ROLE), (LMG ROLE), Plus 500 free US military manuals and US Army field manuals when you sample this book


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CHAPTER 1. INTRODUCTION
Chapter Overview . 1-1
Section I. General Information 1-1
Section II. Equipment Description and Data 1-2
CHAPTER 2. UNIT MAINTENANCE INSTRUCTIONS
Chapter Overview . 2-1
Section I. Repair Parts, Special Tools, and Common Tools and Equipment 2-1
Section II. Service Upon Receipt . 2-1
Section Ill. Preventive Maintenance Checks and Services (PMCS) Quarterly
Schedule. 2-3
Section IV. Troubleshooting 2-10.1
Section V. Maintenance Procedures 2-18.8
Machine Gun 2-19
Cover and Feed Mechanism Assembly 2-20.1
Return Rod and Transfer Mechanism Assembly . 2-21
Bolt Assembly. 2-22.1
Slide Assembly . 2-26
Piston Assembly . 2-28
Heat Shield . 2-29
Barrel Assembly, Gas Collar and Gas Regulator . 2-30
Handguard Assembly . 2-37
Buttstock/Buffer Assembly or Stock, Gun, Shoulder: M5. 2-38.2
Trigger Mechanism Assembly 2-40
Gas Cylinder . 2-42
Bipod Assembly 2-43
Receiver Assembly. 2-44
Sling and Snap Hook Assembly . 2-48
Section VI. Installation and Maintenance of Adapter Assembly
for M122 Tripod Mount 2-49
Installation of Adapter Assembly 2-49
Maintenance of Adapter Assembly for M142 2-50
Section VII. Utilization of Auxiliary Equipment 2-52
Application of Rack, Storage, Small Arms, M13. 2-52
Section VIll. Maintenance of Blank Firing Attachment 2-52
CHAPTER 3. DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
Chapter Overview . 3-1
Section I. Repair Parts, Special Tools, Common Tools and Equipment
Section and Fabricated Tools 3-1
II. Troubleshooting 3-1
Section III. Maintenance Procedures 3-1
Machine Gun 3-2
Bolt Assembly 3-4
Slide Assembly. 3-5
Piston Assembly. 3-7
Barrel Assembly . 3-9
Buttstock/Buffer Assembly or Stock, Gun, Shoulder: M5. 3-16
Trigger Mechanism Assembly 3-18.2
Bipod Assembly . 3-21
Cover and Feed Mechanism Assembly . 3-26
Feed Tray 3-26
Cover Removal . 3-27
Feed Lever 3-28
Cartridge Retainer Pawls 3-28
Feed Pawl Assembly. 3-29
Cover Latches . 3-29
Rear Sight Assembly. 3-30
Receiver Assembly 3-44
Gas Cylinder Retaining Spring 3-44
Ejection Port Cover . 3-45
Cocking Handle Assembly 3-46.2
Magazine Cover 3-47
Barrel Locking Lever . 3-47
Receiver 3-48
Section IV. Final Inspection Procedures 3-52
Headspace Check 3-52
Firing Pin Protrusion Check . 3-54
Trigger Pull Test. 3-55
Functional Test of Machine Gun 3-56
Section V. Preembarkation Inspection of Material . 3-56