M2 Browning Cover Top Plate

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Figure 61. Removing the cover extractor spring.

Figure 6£. Replacing the cover latch spring.

2. Slowly release pressure, and remove the belt feed pawl and arm (fig 58).

3. Disengage the belt feed pawl arm from the belt feed pawl (fig 59).

U- Remove the belt feed pawl spring, (e) Cover latch spring. Pry the hooked end of the spring out of its groove in the cover, and shift it to the left until it rests on the cover extractor spring. Press down on the cover latch spring, and slide it away from the cover latch. Make sure that it rides on top of the cover extractor spring. When the enlarged hole in the spring meshes with the cover latch spring stud, remove the spring from its stud (fig 60).

(/) Cover extractor spring. Press down on the cover extractor spring and pry the end of the spring out of its recess in the cover extractor cam (fig 61). This spring, if not handled carefully, can cause injury. Disengage the opposite end of the spring from the cover extractor spring stud. This completes detailed disassembly of the cover spring.

(a) Cover extractor spring. Place the cover in the same position as for detailed disassembly. Hook the slotted end of the spring under the cover extractor stud with the projection pointing in the

Cal Cover Group
Figure 69. Parts of the belt feed slide, displayed for final assembly and return to the cover (left-hand feed).

direction of its recess. Exercising caution, press down, and seat the projection of the spring in its recess in the cover extractor cam.

(b) Cover latch spring. Place the cover latch spring inside the cover with the enlarged hole meshing with the cover latch spring stud, the hooked end down (resting on the cover extractor spring). Press down on the cover latch spring, and slide it toward the latch. Pry up on the latch end of the spring, so that it rides up over the projecting wing of the cover latch. Snap the hooked end of the spring into its groove in the cover (fig 62).

(c) Belt feed slide. To reassemble the belt feed slide:

1. Replace the belt feed pawl arm on the belt feed pawl.

Note. There are two pins on each aide of the belt feed pawl. The larger is the belt feed pawl arm pin; the smaller is the belt feed pawl arm locating pin (fig 59).

For a left-hand feed, the belt feed pawl arm must be placed over the pins so that the belt feed pawl

PROJECTiNG OVAL OF BELT FEED^AW^SIH^

Figure 6 A. Projecting oval of the belt feed pawl, spring properly seated in relation to the belt feed pawl arm (left-hand feed).

arm is toward the latch end of the cover, when the assembled slide is returned to the cover (fig 63).

2. Place the small end of the belt feed pawl spring over the belt feed pawl spring stud (inside the belt feed slide). Place the assembled pawl and arm over the spring so that the large end of the spring is seated in the recess in the pawl, with- the projecting oval (loop) of the spring away from the belt feed pawl arm (fig 64).

3. Aline the pinholes in the pawl, arm, and slide; replace the belt feed pawl pin (fig 65). Make sure that the pin is flush with the sides of the slide.

k. Replace the belt feed slide in its guide-ways, with the belt feed pawl to the left, arm toward the latch (fig 66).

(d) Shoulder headless pin and spring. Replace these in their seats in the side of the belt feed lever. For left-hand feed, the spring and pin are seated in the hole nearest the belt feed lever lug (fig 52).

(e) Belt feed lever and lock pin. Place the belt feed lever over the pivot stud, lug up and to the left (fig 67). With a thumb at either end of the lever, press down and turn the lever until the shoulder headless pin is against the inside of the cover. Pivot the lever until it is alined with the slots of the cover and slide. Press the lever down as far as it will go (fig 68). Move the lug end all the way to the right (fig 69). Maintain a downward pressure, and snap the lug end all the way to the left so that the shoulder headless pin is properly positioned in the cover (fig 70). Replace the lock pin (cotter pin) in the pivot stud. Make sure that the toe end of the lever moves laterally in its slot without binding.

(/) Cover pin. To replace the cover group on the receiver, place the latch end of the cover in position, with the latch engaging the top plate. With the heel of your hand, tap the hinged end downward into position (fig 71). Aline the pin holes and replace the cover pin. Insert the cotter pin in the cover pin and spread the ends. This completes assembly of the cover group.

e. Receiver Group.

(a) Belt holding pawl, spring {s), and pin. Press down on the spring belt holding pawl and withdraw the belt holding pawl pin to the rear. Remove the belt holding pawl and springs, being careful not to lose the springs. The split belt hold-

Figure 65. Replacing the belt feed pawl arm pin.
Figure 66. Replacing the belt feed slide in its guidewaye (left-hand feed).
Cal Right Hand Plate Template

Figure 67. Placing the belt feed lever over its pivot etud.

Figure 67. Placing the belt feed lever over its pivot etud.

Figure 68. Alining the belt feed lever with the slots in the cover and elides.

Figure 68. Alining the belt feed lever with the slots in the cover and elides.

ing pawl assembly includes a left-hand and right-hand belt holding pawl, connected by a belt holding pawl sleeve; two belt holding pawl springs are used (fig 73). Guns of earlier manufacture use a single belt holding pawl, adapted for either one or two springs (fig 72).

(6) Cartridge stop assembly, front cartridge stop, and belt holding pawl pin. Withdraw the belt holding pawl pin from the right side of the receiver. Remove the cartridge stop assembly (or rear cartridge stop and link stripper—on guns of earlier manufacture), and front cartridge stop, from the right side of the receiver (fig 74).

(c) Trigger lever pin assembly and trigger lever. Release the hinged lock from the left side-

plate; turn the pin clockwise, and withdraw the pin to the left. Remove the trigger lever from inside the receiver. Guns of earlier manufacture may have a trigger lever pin assembly without the hinged lock. In this case, lift the lock of the pin out of the small hole in the left sideplate and rotate the lock end downward 90° until it is just forward of a vertical position. Withdraw the pin to the left (fig 75, 76, and 77). This completes disassembly of the receiver group.

(a) Trigger lever and trigger lever pin assembly. Replace the trigger lever in the receiver, with the long end forward and the bowed surface upward, between the top plate bracket and the bolt latch bracket (fig 78 and 79). The trigger lever should project about Vfe-inch beyond the timing adjustment nut. Aline the hole in the trigger lever with the holes in the receiver. Position the trigger lever pin assembly so that the key on the pin will pass through the keyway in the left side-plate. Push the trigger lever pin assembly all the way in and turn the pin 90° to the left, or counterclockwise. Turn the lock flat against the side of the receiver. (With the lock without the hinge, turn the lock counterclockwise until the lock fits in the small hole in the sideplate.)

(b) Cartridge stop assembly, front cartridge stop, and belt holding pawl pin. Install the cartridge stop assembly (or rear cartridge stop and link stripper) and front cartridge stop, on the right side of the receiver. Replace the belt holding pawl pin.

(c) Belt holding pawl, spring(s) and pin. Place the belt holding pawl in position on the left side of the receiver, first seating the springs. Depress the pawl and insert the belt holding pawl pin. This completes assembly of the receiver group.

f. Backplate Assembly. The backplate assembly is not disassembled by using units.

10. Positioning of Parts for Left-Hand feed (App B)

Figure 69. Moving the belt feed lever lug all the way to the right.

Figure 69. Moving the belt feed lever lug all the way to the right.

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