PS Magazine - TB 43-PS-418
PS, The Preventative Maintenance Monthly
ISSUE 418
SEPTEMBER 1987
L
f
1
!
1
±
±-²³
I
DON'T
FEEL
SO GOOD!
,.
I
To many Ml97 20-MM autO±atic
guns are gOing tO
A V
fr a ²³day
chEkUp I wOrse-´han-nOr±A cOndiµOn.
The reCOiL ad¶pter's spindLe and ·e
sLider ¸re negLect¹ by a LOt OF ar±a±ent
ºechs during their PM»S.
PMCs
will ±top galling
T
r¼suLts are Liter½¾y "g¿Àg. Á
GÂÃng
i
caus¹ by ÄicµOn ÄO± Lack
OÅ LubricatiOn. ÆrictiOn resuLts in the
wearing away OF ±e´aL, Leaving gOuges
and abrasiOns Çn ´he surFace.
´
gALing is cOncenÈat¹ I a 13/16-Én
area Or Larger On the spindLe, yOu have
tO r¼pLac¼ ·e spindLe Like it says in Para
3-55 OF TM 9Ê10²Ê2Ë-20Ê1.
The sa±e gÌs fr ·e sLider, except
that gaLLIg is ½¾Owed up tO a 15/16-Çn
arÍ Bfre ´he sLider
h t
B repLaCedÎ
36
»aÏh gÐÑg Ò Óhe ÍrLy s´ageÔwHen
yOu pÕÖ ±On×y IsØtiOn OF ·e recOÇL
ÙÚr
a
sÖider Or Ûr 15,ÜÝ
rud,
whichever cO±es Þrst.
AH-1² .³.
R¼±Ove ßy às¹
a
with 1á-gât
abrasive cLOth, NSN 5350-á-161-ã6ä
Then åLish wi´h æ0-gçt abr¶sive cLO·,
NSN 5350-á-161Ê9715.
»Lean the sanded and åLished area
with a cLean cLO´h and aLcOhOL, NSè
6810-áé753-4993ê
When the cLean¹ ¸rea is dë, spray
witH cìrrOsiOn-inhibiíg sOLid
f
Lubriî
c¸nt, NSN 9150-á-168Ê2ïð.
ñ¼ò Èeat¼D parts
µ
cur¼ fr at Least
18
H ¶
74 °éó°Æ
b·R
ôõ±bLÇng
the±ä Never handLe the paös durÇ÷g
curÇng.
No Deception in RecEption
If your pilot repoR lousy
Fm
radio recepTon, chances are ±he an±enna is greasy or oily.
'Course² good mechs don³± wai± for compLa´n±s before ±aking ac±´onµ Jus± rub a
f´nger across ±he an±enna surFace dur´ng each da´ly¶ ·f ´± feeLs greasy or o´Ly² w´pe i±
ofF w´±h a cLean clo±h¸
If your unit has not receivEd
a mENAge yoU have an ±nterest
±n, check with your next highEr
hEadquaRe².
³H-67´12µ
S±
T
e
n
i
/
O
·
t² RE³
to mesg lif±nG
rES²RIctIon on f³´inG aµEa wEapn
¶StEm.
Oo´
May
87.
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