TM 9-2350-230-12
TABLE 5-10. DISASSEMBLY/ASSEMBLY OF CAL..50 MACHINE GUN, M2, HB
DISASSY
ASSY
PROCEDURE
FIG/ITEM
STEP
STEP
1
22
Pull retracting slide handle to rear until lug on barrel locking
spring is visible and centered. Twist barrel and remove.
2
21
Raise cover and remove belt holding pawl pin and link stripper.
3
20
Remove belt holding pawl pin, belt holding pawl, and springs.
*
CAUTION: Make certain bolt is in forward position
before next step.
4
19
Pull outward on lock, upward on latch and slide back plate
from receiver grooves.
5
18
Push driving spring rod assembly forward and to the left
until free from hole in side of receiver.
6
17
Retract retracting slide handle until headless shoulder pin (bolt 5-14
stud) is aligned with slot in receiver and remove bolt stud.
7
Push bolt to the rear and remove. 5-15
16
Raise bolt latch and push bolt into receiver.
15
Make certain cocking lever is forward and push bolt into receiver
until bolt latch engages notches in top of bolt.
*
CAUTION: When installing bolt in next step, do not
trip accelerator.
8
Remove bolt assembly extractor and bolt switch. 5-15
14
Install bolt assembly extractor and bolt switch so that grooves 5-15
in switch align with grooves of bolt for left-(L) hand feed.
9
13
Release bolt assembly firing pin spring by depressing plunger. 5-15
10
12
Remove bolt assembly cocking lever pin using punch and
remove cocking lever.
11
Remove bolt assembly accelerator stop lock by depressing
and rotating to center of bolt. Pry up by using thin end of
cocking lever and remove.
11
Install accelerator stop lock by placing in position.
12
Push accelerator stop from opposite side shown, using
cocking lever, then pry stop from bolt.
10
Install accelerator stop and press into position.
13
9
Remove sear slide, sear, and sear spring.
*
CAUTION: Seat sear spring properly.
14
8
Remove firing pin extension with firing pin and separate.
15
7
Depress buffer body lock and push barrel extension to the rear.
Remove buffer assembly with barrel extension assembly.
16
Push forward on tips of accelerator and disconnect buffer
assembly from barrel extension assembly.
6
Hold buffer assembly with accelerator tips up, engage de-
pressor in notch and push forward to engage.
17
5
Remove buffer assembly from barrel buffer body.
18
4
Remove accelerator pin and accelerator from buffer body.
19
3
Remove breech lock pin and breech lock from barrel extension.
20
2
Remove belt feed lever group and belt feed slide.
21
1
Turn trigger bar pin assembly, pull out and remove trigger
bar.
NOTE. Reverse disassembling step action, as necessary, when assembling.
5-29