Browning machine gun caliber .50, M2, aircraft, fixed and flexible. Page: 33
54 p. : ill. ; 22 cm.View a full description of this book.
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TM 9-225
BROWNING MACHINE GUN, CALIBER .50, M2 15
IMMEDIATE ACTION
Gun fails to fire
Tap cover. Straighten belt. Pull bolt to rear and release it; at
same time, with left hand under receiver, feel for ejected round.
I I
If a cartrid e is ejected If there is no ejection
Fire Raise cover. Remove first round from
I belt.
Gun still fails to fire I
I Cartridge is
Check for ruptured cartridge
I II
No ruptured cartridge in gun not in gun
I I I
Change bolt Remove Reload, re-lay,
Iand fire
Reload, re-lay,
and fire
NOTE.-If the procedure outlined above does not place the gun in action, the
gunner must inspect the feed mechanism and working parts of the gun, determine
the cause of the stoppage, and eliminate it.
b. On fixed aircraft guns.--(1) Due to the fact that the attention
of the operator of a fixed aircraft machine gun is directed on the
operation of the airplane, only limited attention can be given to
the gun. In fact, the only stoppages of fixed machine guns that
can be relieved in the air are those which may be remedied by
pulling back the operating slide. Nevertheless, it is of vital interest
to the gunner to know as much as possible about the causes of,
and remedies for, the various stoppages. Information contained
in the table cf stoppages listed in paragraph 14d and notes on im-
mediate action in a above are to be considered primarily in relation
to practice firing on the ground, as it is in such firing that the funda-
mentals of the operation of the gun are learned. The gunner may
subsequently apply the knowledge of stoppages thus gained to oper-
ation in flight in order to determine quickly whether any particular
stoppage can be readily corrected or if it requires more extensive
repairs than he can make.
(2) If gun fails to fire, see that cover is latched properly. Pull
operating slide to the rear and release quickly, allowing bolt to go
forward smartly. If gun still fails to fire, repeat the operation.
c. To remove a cartridge from T-slot.-(1) Hold back bolt and
raise extractor. The cartridge will usually fall out unless it has a
thick rim or the T-slot is defective.
33
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United States. War Department. Browning machine gun caliber .50, M2, aircraft, fixed and flexible., book, April 30, 1942; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc29988/m1/35/: accessed May 23, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.