Mk19 Feed Slide Assembly

Feed Slide

c. Position the feed slide assembly fully to the left while in the feed tray. Close the top cover, observing the CAUTION.

2. CHARGE WEAPON.

a. Charge the weapon slowly. Place the safety on 'S' (SAFE).

b. Go to the front of the receiver and check the primary pawl lever (3), located under the receiver feed tray area. Check the primary pawl lever. If it is flush with the receiver, the pawl is down (flush) in the feed area. Evacuate the weapon to Direct Support Maintenance. If the primary pawl is protruding downward perform step 3.

ROUNDS

ROUNDS

Bolt Finger

3. POSITION OF PRIMARY PAWL.

a. Place the safety on 'F' (FIRE). Return one charger handle forward to the locked position. Hold the other charger handle firmly and ride the bolt forward slowly about 3 3/4 inches (or the length of one charger arm). Check the round positioning block tabs, which protrude from the right receiver wall; they should retract inward approximately the width of the tab heads. If this happens, the feed slide is adjusted correctly. If the tab heads protrude inward more or not at all, evacuate to Direct Support Maintenance. (Marine Corps: repair at Unit Maintenance.)

ASSEMBLY

1. INSTALL THE FEED PAWLS, FEED PAWL FLAT SPRINGS, AND HEADLESS STRAIGHT PINS.

a. Position the feed pawl flat spring (1) into the indicated area of the outer feed slide, as shown.

b. Holding the feed pawl (2) and feed pawl flat spring (1) in place, insert the headless straight pin (3). Ensure the headless straight pin is equally extended on both sides. Follow this procedure for both feed pawls.

Cal Broken Feeder PawlMark Machine Gun

2. INSTALL THE FEED SLIDE ASSEMBLY INTO THE FEED TRAY.

a. Align the tabs on the feed slide assembly with the slots in the feed tray, and insert the feed slide assembly into the feed tray. Ensure exposed spring is on left side of receiver.

END OF WORK PACKAGE

UNIT

MK 19 MOD 3 40 MM MACHINE GUN (NSN 1010-01-126-9063) UPGUNNED WEAPONS STATION MK 19 40 MM MACHINE GUN (NSN 1010-01-362-6513)

MAINTENANCE OF MK 19 MACHINE GUN ASSEMBLY - SEAR ASSEMBLY - REMOVAL/INSTALLATION REMOVAL, INSPECTION OF INSTALLED ITEMS, INSTALLATION

INITIAL SETUP:

Tools and Special Tools

Tool combination assembly (3269494) Tool kit, small arms repairman

SC 4933-95-CL-A07 with addition of SL-3-00607A (Marine Corps only) Tool kit, small arms repairman,

SC-5180-95-CL-A07 Tool set, intermediate maintenance, SL-3-08669A (Marine Corps only) Tool set, organizational maintenance, SL-3-08668A (Marine Corps only)

Materials/Parts

Lubricant (as needed)

Equipment Condition

Bolt and backplate assembly removed (WP 0041 00).

REMOVAL

1. REMOVE SEAR ASSEMBLY.

b. Turn the receiver over. Retract the lock plunger (1) on the sear housing, using a screwdriver tip on the combination tool. Squeeze the sear (2) and safety together. Rotate the sear assembly 90 degrees either way, pressing down on the safety as you rotate.

c. Place the safety on 'S' (SAFE) before you lift the assembly out of the receiver. Lift out the sear assembly.

Mk19 Sear Assembly

1LK129

INSPECTION OF INSTALLED ITEMS

1. INSPECT SEAR ASSEMBLY.

a. Move the safety lever pin (1) back and forth to check positive retentive action. If weak or binding, evacuate to Direct Support Maintenance. (Marine Corps: Repair at Unit Maintenance.)

b. Visually inspect for broken parts (e. g., broken safety lever pin). If any are broken, evacuate to Direct Support Maintenance. (Marine Corps: Repair at Unit Maintenance.)

c. Apply adequate lubricant.

Assembly 218 Rifle

INSTALLATION

1. INSTALL SEAR ASSEMBLY.

a. Place the safety in 'F' (FIRE) position. Squeeze the sear and safety together during installation. Align the sear housing with the cutout in the bottom of the receiver. Holding the safety pressed down, twist the sear assembly 90 degrees so the safety lever pin is toward the rear of the receiver. The assembly should click into place. Place the safety on 'S' (SAFE).

END OF WORK PACKAGE

UNIT

MK 19 MOD 3 40 MM MACHINE GUN (NSN 1010-01-126-9063) UPGUNNED WEAPONS STATION MK 19 40 MM MACHINE GUN (NSN 1010-01-362-6513)

MAINTENANCE OF MK19 MACHINE GUN ASSEMBLY - PRIMARY DRIVE LEVER AND VERTICAL CAM

ASSEMBLY - DISASSEMBLY/ASSEMBLY DISASSEMBLY, INSPECTION OF INSTALLED ITEMS, ASSEMBLY

INITIAL SETUP:

Tools and Special Tools

Tool kit, small arms repairman

SC 4933-95-CL-A07 with addition of SL-3-00607A (Marine Corps only) Tool kit, small arms repairman

SC-5180-95-CL-A07 Tool set, intermediate maintenance, SL-3-08669A (Marine Corps only) Tool set, organizational maintenance, SL-3-08668A (Marine Corps only)

Materials/Parts

Abrasive cloth (item 3, WP 0124 00)

Lubricant (as required)

Slotted spring pin (item 19, WP 0125 00)

Equipment Condition

Bolt and backplate assembly removed from the weapon (WP 0041 00).

DISASSEMBLY

1. DISASSEMBLY OF VERTICAL CAM ASSEMBLY.

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Responses

  • Helmi
    How to attach sear assembly mk19?
    6 years ago
  • antonio
    How to remove a mk 19 feed slide assembly?
    3 years ago
  • Sarah Loewe
    How to remove cover of mk19?
    2 years ago

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