PS Magazine - JANUARY 1983
PS, The Preventative Maintenance Monthly
ISSUE 362
JANUARY 1983
·.
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When you Cobra mechs adjust tHe barrel on the rod end so t±e exposed
pitch change lInks durIng a maIn rotor threads at eacH end are equal wItHIn
hub And .blade InstallatIon, turn tHe
1/
16
Inch²
THe word's In the ma³ntenance
manUals´
But you donµt have to maIntaIn tHat
measurement If the test flIgHt follow-
Ing your maIntenance sHows tHe auto¶
rotatIonal RPM Is not wItHIn lImIts·
¸n that case, adjust the lInKs aS
necessary´ THe exposed tHreads may
not be eQual at eacH end oF tHe
barrel´´·no sweat!
.±² 1³´/
/
{S-m
Dear Windy,
_
²
There aRe a lot of Figures ±H²own aroun³ abou´ µ¶en
to
±es± ±¶e
a1rcRaft
ou·si¸e air temperature (OA¹) Gage.
-
F±
exampleº t¶e 24»Mont¶ c¶eCk on ±¶e
U-21A
¼½ge¾ ±¶a± use¿ ±o be on
PaÀe
1±59
iÁ
TM.²³´1³10µ¶·¸±¹3,ºwas
remove
µ
BY
C9»
TÂ
³³¼1³1½±¾¿¿±
PM
ÃaLs
²o³
a
À¿¿±hr
iNSÄEűionÆ
Ç
-
Èn
th
otÉeÊ ÉanËÌ ÍaÀe
Á´1Â8Ã
in T
³³±1Ä¿¿±Å¿4ÆÇÈ/ 1É
on geneÎal
maintenanÏe
p
raÏÐiÏesÑ stiL ca/ ÒÓr ÐÔe ÕeÖ± eVer×
1¿¿
ØÙurs.
WÚaÛ
d
Üou reÝomÞen³ß àiá¿â?
De¹º »ergeant B´ M¼½
¾Oll¿w ÀHe ÁHase MaIntEnanc ÃuÄ
´µ
Your aIrcÅaFÀÆ ÇarGEÈ ÉÊE
²00³HOur
ËIgurÌ In ÍÎ
55´µ¶00¸204¹º»¼½
Is
ÄeÏnG remÐvEÑÒ
damaged seals and Install new ones·
THÓs tIme, tHo, glue tHe seals to the
cargo and crew doors and not to the
door frames on tHe Fuselage, lIKe so:
•
Remove
Tile
damaged seal
from the Fuselage witH toluEne,
NSN
68¾¿À¿¿ÀÁ¾ÃÁ¿¿Ä.
Use
pla±tIc glove² wHe³ Ha³dlInG tol-
uene.
±
Use A Cle´n µAg and met¶yl·
et¸yl¹keto³e
(MEK)Å
º»N
ƾ¿Ã¿¿Ç
Á¾ÀÁ7ÂÈÉ
tO ¼lean t½e edGe o¾ T¿e
DooÀÁ
²
»and tHe edge o tHe dÃoµ Wit¸
¾Â¿
Gµit ²andp´peµÄ Nź
È3ÈÊÿ¿À
ËÁ¾À8̾ÍÎ
²
Æipe ÇHÈ sa³dÉÊ aËea Clea³
wiÌÍ a µaG and
ÏEKÐ
•
Îlue tÍe µubBeÀ seal, ÏÐN
9ÑÒ¿À¿¿À¾ÓÑÀÔÕÖÁ×
to
Ñ
tHe dooµ
wiÒH adHe²iveÓ
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