Browning machine gun caliber .50, M2, aircraft, fixed and flexible. Page: 34
54 p. : ill. ; 22 cm.View a full description of this book.
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TM 9-225
15-16 ORDNANCE DEPARTMENT
(2) If the cartridge will not fall out when extractor is raised,
use a screw driver or similar tool. Hold bolt to the rear with ex-
tractor raised. Place screw driver through top of receiver into top
of cannelure of cartridge and drive cartridge downward out of
T-slot by striking the upper end of screw driver with the palm of
the hand. Before attempting to drive the cartridge out of the
T-slot, make certain that the firing pin striker is not protruding
through the face of the bolt and imbedded in the primer of the
cartridge. If it is, it will be necessary to disassemble the gun, remove
the firing mechanism from the bolt, and then remove the cartridge
from the T-slot.
d. To remove a case from chamber.--If there is an empty case with
broken rim stuck in the chamber, hold back bolt and remove cartridge
from T-slot if there is one. Insert cleaning rod from muzzle and
knock empty case from chamber. If several cases stick in the cham-
ber in close succession, put some oil on chamber-cleaning brush,
thoroughly scrub chamber with the brush, then wipe out with a
dry rag.
e. To replace damaged parts.--Remove damaged parts and re-
place as quickly as possible. If it is imperative that fire be main-
tained or immediately resumed, a broken minor part should be
replaced by substituting the complete spare part which contains it.
Thus a broken firing pin would be remedied by changing bolts; a
broken ejector, by changing extractors. Later, as opportunity per-
mits, the small parts will be repaired or replaced in order to make
the large part again available for use. Where the complete bolt has
been changed, a check should be made on head space.
SECTION IV
CARE AND PRESERVATION
Paragraph
General ------------------------------ -----------------------_ 16
Points to be observed before flight _______________-__________- __ 17
Points to be observed after flight ____________________-- _________18
Care and cleaning of gun ----------------------------------------19
Method of filling oil buffer ----------------------------------------20
Materiel affected by gas..-----------------------------------------21
16. General.-The importance of a thorough knowledge of how to
care for and clean the machine gun cannot be overemphasized. The
kind of attention given to a weapon of this type determines largely34
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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/m1/36/: accessed May 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.