PS Magazine - NOVEMBER 1985
PS, The Preventative Maintenance Monthly
ISSUE 396
NOVEMBER 1985
L
IHA WK Power
Of!
Befre you switch Fom one primary
pOwer source to another fr your Im-
proved HA WK missile System com±
ponents, shut system power o²³ at each
major item (radars, BCC, etc.).
Then switch to either commerciaL or
tactical (generator) power. The power
o´ bit goes whether you're switching
to cOmmerciaL or generator pOwer.
Iµ you "hot switch¶ to a di´erent
source whiLe system power is on, tran·
sient
voltages
can
zap
soLid
state
components.
Stinger proof Testing
¸ive years is the most your ¹tinger ºHT »tracking ¼ead trainer) gas cy½iNders
can go
¾
wit¼Out ProOµ testing¿
ÀheÁÂ the date on the ºHº deÁal mont¼½y to be sure you DonÃt exÁeed t¼e
ÄVeÅyear proOµ test period¿ Æage 3Å11 oÇ ºM 9Å6920È429È12 has t¼e DetaiLsÉ Turn
in your ºHº iµ prooÇ testiNg Êate is past dueÉ
¸LexibLe hoses oN your M80 GÆU have Prooµ test Êates stamped into a metal
tag oN the end oÇ t¼e hoses¿ ˵ µiVe years have passed since the test dates, replace
the hosesÌ
ºhe requiremeNts ¼eLP insure that cyLiNders and ¼oses wi½l nOt Leak with
DaNgerous ¼ig¼ pressure¿
HAWK Latch Re±lacement
¸orget the ÍÎTE oN Æage 2È1Ï oµ ºM 9Ð1Ï50Å500Ñ20 that requires replace-
ment oµ the superstructure missi½e ½atches aÒer each 200 ¼ours oµ operation or
oNe year aµter instaLLatioN¿ Æara 2Å10, TB Ï3Ó0Ô01Å39ÑÏ (JaN 83) says rep½ace
t¼e Latches onLy when theY breaÕ¿ A½so, repLac them iµ you can see damage¿
ºhe new, frged ½atches give Ör better service than the origiNa½ ×ast oNes¿
6
NOV 85
ANatomy oF aN
M
16² ³ Bu´t Pµate ¶crew
Înce you tighte
_
n the buØt cap screw,
the butt stoc on yoÙÚr MÛ ÜA 1 riÝe is
not supposed to have any movement
Font to reaR (muzzle to butt direction)¿
¹ome slight circular side to side or up
and down movement oÞ t¼e stoc is ÎK¿
IÞ there is frward to rear movement
loo fr a damaged butt plate or loOse
lower eX• ßsion.
IÞ the lower receiver eXtension is
loose, nOtià áirect ¹uppoât¿
IÞ you can see cracÂs in the cap screw
hole ãhen the screwäs installed, replace
the butt plate.
Check
for
cracks
in the
screw
hole
The cap sÁrew is the
å
Âey to a secure
stocÕ. Iµ you overtighten it, you damage
the Liner oµ the pLastic butt p½ate¿ ºhe
Liner frces the frward part oµ t¼e stocÂ
against the Lower reæeiver and hoLds it
in p½ace.
Iµ you overtighten the cap screw, it
colLapses the ½iNer¿ çou have no spring
tension, and t¼e s¼oulder stocÕ moves¿
NOV 85
l\
Here's how to
è
tig¼ten the screw right:
TurN it unti½ the tapered head seats in
the butt p½ate and you µeeL resistance.
TheN, maÕe one more quarter turé¿
¹top¿
Iµ the screw ½oOseNs in use, replace it.
Cap screws s¼ou½d be useD
one time
only
and rep½aced with a New oNeê ë¹ë
5305Å00ÅÏÜ3Ñ3893¿ ¹crews have seLµì
locÕing ny½on inserís w¼ich lose theîr
locÕing ïaíure when removed FOm the
ð
butt plate¿
7
Use cap
screw one
·
tIme onLy
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