PS Magazine - TB 43-PS-442
PS, The Preventative Maintenance Monthly
ISSUE 442
SEPTEMBER 1989
M2/M3-Series Bradley .
.±
Never Dry Fire Without Barrel
O
ry firing wears out the firing pin on
your M242 automatic gun Fst. That's
why you should Dry ±ire only ²uRing
PMCS and training³
But never dry ±ire without the barrel´
With no barrel, the bolt slams past
where it shouLd stopµ That ruins the
firing pin tang´
FirIng pin
DRy firiNg without
barrel rUiNs taNg
SprINg
ake sUre yoU add yoUr STE-M l/¶VS test set to the ·o¸aL ¹aster ¸a·ibratioN
listiNgº If it»s oN the master ¼istiNg½ tHe ¸a·ibratioN fO·ks re¹iNd you when the
yearly ¸alibration servi¸e is dUeµ
The test set gets a
DA 80
·abel ¸haNgiNg the re¸all date after ea¸h servi¸e¾ If
tHe ·a¿À· is missiNg Áom yoUr test set, ¸HÀ¸k ÂitH the ¸alibration Ãlks to fiNd
oUt the Next servi¸e Dateµ TheN ad
j
Ust the date on yoUr ¸a¼ibration re¸ords´
6
SEP ±9
For g²Ns thAt misfire, suspecT a
weak cL²tch assembLy sprINg.
a
weaK
spriNg won't LeT the cluTch assembLy
HoLd the correct Torque± Check The
Torque LIke IT says oN Page 2- 3 20.1
iN ³M 9·1005·200·20&P (Jan 85). ³esT
singLe- aNd double-spring cLutch as´
semµlies at Least semiaNNuaLLy.
¶f you replAce The spring, aLso
replAce the ro¸Ler¹ ³he ro¸Ler geTs fLAT
sºoTs and LeTs the clutch sLiº.
CL²tch
assemµly
SEP ±9
7
DurINg
semIAnnuaL
mainTe´
NaNce, reºLace aLL the guN's »-riNgs.
SolvenT causes tHe »-riNgs To deter¼´
oraTe. ³heN THey can'T Keeº damper
fLuid in aNd waTer ouT. ½t's easier To
repLace The »-riNgs whIle you Have
THe guN apa¾ thaN to wait for AN »-
riNg To go bad±
Before you issue an M242,
maKe su¿e THe piN inside iTs drive
shafT is at The Top of THe shafT. ¶f tHe
ºiN's spriNg coLlapses, The pin faLLs
dowN The shaÀT and The drive shaÁt
caN't TurN the feeder.
ÂooK for
pin and
sºring
inside
drive shaÀT
Ãor a guN ThaT suddeNLy quits
firing, ¸ook for a broKeN seaR p¼n.
a
broKen pIN meaNs The ÄNterLocK wonÅt
worK.
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