PS Magazine - MARCH 1975
PS, The Preventative Maintenance Monthly
ISSUE 268
MARCH 1975
'
i
I
I
DRIVER'S HATCH-(107
only)-If the
driver is sitting in hiS hatch with the
hatch cover open, and Somebody LowerS
the cannon aSSemBly aS far aS it'lL Go,
what can happen? The mount assemb±y
can hit the driver in the head.
If the driver has C²ucked down HUt the
hatch ³over iS not SecuRed, thinGS are Bet´
ter,
ln:L
Still not Good. The lµatch cover
wiLL take the c¶Unch instead of the driver·S
COUNtERRECOIL RELIEF VALVE-a±
the froN¸
Of the
M±58
Mo¹ºt, in the counterrecoil
front »ead, you have an air check vaLve¼
½n
¾
the center of thiS hoUsinG there are
4
s¿aLL hoLes that have to He kept opeÀ
BecauSe they·re the re±ief va±ve fÁr thE
coUnterrcoi±. !Fake sure they·re not cLoSed
By paint or dirt By puttinG yoUr hand over
them While movin the tube in and out
of Batteryà Äf yoU can feel or hear the
aiÅ enterinG anD exitinÆ, they·re
OK.
Çf
not, tÈÉL youR direÊt sUpport maintenance.
NoPE!
: DON'T
BELIeV±
I²
³epR´CHAUµS¶
if it·s not secU¶ed, or even if it is secured
iË the open poSitionÌ Ít·s Safe from har1Î
OnLy iÏ itÐs Ñn the cLosed Shut poSitionÃ
ÒomÓ drivers are Ôore alert aBoÕt
securinÆ the hatch cover in the open posiÖ
tion ×with the holdopen hook Øefore drivÙ
inÂ.
a·
unSecuRed hatch can wave aroUnd
and hit the driver in the Úack of the heaÛ
if he stops sUddenly or ÂoeS over a bUmp.
ÜheSe hookS are not complete±y reLiaBle
tRAVEL LOCK-i²
takes a littLe extra tiMe to
pUt yoUR ÂUn into t¶aveL Lock Ýefore you
MoVe your cont¶ol vaLVe handle to
r¸-
Tr¹cTº
ÞUt take the time BecauSe if the
GUn is eLevated When yoU retract, the
Breech enCß of thà tUBe can Bend yoUá
tooL caSÓ.
âever Leã anyBOdy in the we±L Unless
the weapon is in trAvel ±ockà If the weaä
pOn slips, a person in the well couLd åe
cruShed.
-±²³´µ¶·¸
æhe eLevatin and trAverSin mechaniSmS
and Gçn mount trAvel lock were not dÓè
siÆned to stand Up to the téHe whippinÂ
that yoU can Æet whÓn yoU move an
Ml07
with an UêsecUred tUbeë ìíoving withoUt
the tuîÓ tïveL lock appLied can He ð²anñ
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