PS Magazine - APRIL 1977
PS, The Preventative Maintenance Monthly
ISSUE 293
APRIL 1977
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Troubleshooting procedures
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tabLes include test and inspec-
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½He"new ³ook¾, in part, Has eveN toucHed otHer kin¿s oF puÀÁicationsÂ
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Case in Point: tHe sUpply cata³og FÃr ÄircrafÅ MecHanic's ½ool Kit, ÆC
5×8ØÙ99ÚCLÛAOl
(Jun 76), wHere pictures of tHe too³s, descriptions
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one breechblock vent assembly, clean and adjust it like the
book says, and you help keep those 106-MM recoilless rifles at top
operating efficiency.
Since tHe vEnt allows gas to escape,
keeping it clean is a must± That's a job
Ħ
fOr the armorer .
.² after eAC³ day of
firing. T´e assembly has to be taken
apart and cleaned thoroughly With
RBµ.
Proper adjustment of the compen¶·
satinG ring insures the right muzzle
velocity for the rifle.
The number of rounds (500) that go
through a barrel determines when the
armorer should adjust the compen¸
sating ring. ¹nd, the rounds fired tell
when the barrel and vent assembly can
no longer be used º1250 rounds).
You» U¼½to-date D¹ F¾rm 2408¶4
(¿eapon Record Data) will keep you
clued on number of rounds fired.
ÀÁble IIL.1, page 11 of µhange 2 to
TM 9Â1000Â205-12, ÃsaÄs when adÅ
jÆtments Çre needed. Èara 64, page
10É of µhange 2 tells how to make the
adjustmentsÊ
3
aDJUSt VENt
aND RING WItH
tHIS tÝÝÞ
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