PS Magazine - TB 43-PS-423
PS, The Preventative Maintenance Monthly
ISSUE 423
FEBRUARY 1988
l.
ri
I
Some Cobra mEchs don't Tke the ±me
and care ne²ed to get valid swashplate
grease samples. When they're sloppy,
they con³aminate the sample wi´ dirt,
cRud, hydraUlic fUid or other Freign
stUµ¶
When they con·InAe a ¸mple, ´ey
mUst t¹ke another one. DoiNg it right
´e
f
tºme saves valUable ManhoUrs-
at tHe »O»P l¼b and ½ the Maintenance
Hangar.
¾ere's the right way:
•
Disconnect the scissors and slE¿ve
drive
l
Àom ´e swashplate oUÁr rÂg
Ãssembly by removiÄg the cot³er pºÄ and
nUt on the inner rºng. LiÅ ´e drive liÆs
oUt oÇ the way and secUre them.
•
Do the rotation anÈ play check acÉ
coÊÄg
t yo
CËÌ Íel's
T bFr
collÎÏg a grÐse Ñmple. Òt's Ót nÎesÉ
sary to sample greasÔ Àom swashplates
³hat Çaºl the play chEÕk. Jst replaÖe 'em.
•
ÒÇ the swashplate passes tHe play
chÎk, grab a so×,
ce,
lintØÀe¿ cloth
damÙned with solvent PÚDÚ680 and
ce
bÛth the ºÄner rIng and oUter riÄg
assemblies. ÜaKe sUre
iL
sUrÇace grit,
sand and other jUnk is removEd or yoU
coUld conÝinate the sample.
•
Us
a
g G w±
ÞexiBle
hs t
pUrgeßàUbricate ´e swashplate with wide
3
²EB 88
JRj±H•-t²
á
:
âãl
oUt the laäl on the åætçe and
temÙratUre aircra× gèease, ÜÒLÚGÚ
81322, at aépêxëÁ 3ì° iíÁîïs
u³
it's lUð throUgh oíe ñçl tUò (3ó°).
±
ôõöly ÷øù
´
úègû
µ
Usiíg a wüen tongUe depressor, ýSý
6515ßþ324Ú55ÿ. Āoøāt enoUgh oÇ ´e
pUrg² gre¼se to at Ăeast h¹lÇÚăç a 3Ąoz
plastic åtąe, ýSý 8125Ą01Ú082ß9697.
Üake sUĆ
a¶
the old
·¸
is pUrgû,
then collÎt and disćse oÇ it. âaãUre
oÇ a swashplatĈ to accept new grease
coMplete an Oil »nalysis ĉeqUest, DD
Fill ot label
cOmpletely
âoĊ 2ċ6, Fr Ðch Čple.
¹
sUĆ yoč
inÕçUde yoUr Uíit, YoUr UnIt's ĎC and
telephone nUmär, the swashplate seèial
nUmäè aíd d¹te oÇ the sample.
±
When yoU rďonnÎæ the sÕissoès and
slĐve drive lđs, Use new selÇÚlĒēing
nUts, ýSý 5310ÚÿÚ871Ú8758, and new
coææer pins, ýSý 5315ßÿÚ241Ú7330.
±
SUĔmit æhe gre¹se samples to yoUr
design¹ted ĕOĕP laB with a completed
DĖ âoė 2026 the same day the sample
is Ęeí. ęڻ̥1ßÜěÚ85Ú05 desig"
nº
´e laår¹toĜ to which yoU sUBĝt
yoUr grease samples.
Do it right the Ğrst time, crew chIeÇs.
reqUires investigatioí.
²»¼ ½
Òt's worth æhe eµoğ.
¾9
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