PS Magazine - TB 43-PS-561
PS, The Preventative Maintenance Monthly
ISSUE 561
AUGUST 1999
M240 Machine Gun . . .
Cover:
Won’t stay up in two open positions?
Doesn’t latch securely? Accessory
mounting rail nicked or burred so badly
that accessories can’t be mounted?
Trigger housing:
Sear won’t raise when tripping lever
is pushed back or won’t fall when trigger is pulled?
Sear moves when trigger’s pulled with safety set to S?
Sear does not move with safety set to F? Sear and
tripping lever burred, chipped, or cracked?
Gas regulator plug:
Carbon on plug? Set
to anything but 1?
Safety:
With safety set on
FIRE, bolt won’t move forward
when trigger’s pulled?
Barrel:
Blocked or dirty? Doesn’t lock
securely in receiver? Flash suppressor
loose, cracked, or dented?
Buttstock:
Cracked? Doesn’t
lock securely in receiver?
Bipod:
Bent or cracked? Legs
bind or won’t lock in place?
PS 561
PS 561
40
AUG 99
Barrel locking latch:
Weak spring tension?
Rear sight:
Binds? Elevation
markings unreadable?
Bolt and operating rod assembly:
Binds? Fails to lock in cocked
(charged) position? Roller binds,
won’t retract? Carbon in piston? Two
or more strands broken on the same
coil or three or more breaks
anywhere on the drive spring?
Cocking handle or charging cable:
Binds or broken? Rails chipped or burred?
Use these
checks to make sure
your M240 machine gun
is
ready
to
fire
.
If you find any of
these problems, tell
your armorer.
Back to Top Back to Top
