cooling faNs thAT hAve
beNT, brokEn oR wArp±d
BLAdes. ²ePlAcE FAN wheN bo³T hoLes Ar“ ±µongAtEd
o¶ Show ±Vid±Nc“ o· w±A¸¹ INsP±cº »¼N bLAd±s Fo¶
e¶o½¾O¿à ĆLĆc± 1hE ĆAn ²oĀŗoĆ GAĆ
EĆ ĆAĆĆ
ĆoĆ
Ć2275775Ć oĆ thE ToP su¶FAcĀ“ oF AĆy sUsPĀ“ct BĆADe
w¾Th The TAbs iN coNĀŗAct w¾Lh thE tĆAiL¾Ng edgE (F¾g¹
3-262ĆJ
). If
thE bLAdE
is
±Ćoded to Th± ±xteNT thAT
ANy pAĀøt oĆ thĀ“ LĀ“AdĆng ±dg± oĀ» thE BlAd± Ćs hĆddĆn
By ĆhE gAgE, ĀŗhE ĆĆN mUsT bE rePlAc±dĆ
d. RepciI1·±
Repa±r ScratCheS, n±ckS² and ³a±Sed
meTal uS±ng a F“ne mill µ±le¶
NOTE
·a¸e muS¹ be taken wHen uS±ng
a
fºLe» no¼
to ¸emove excESS½VE amoun¾S Oµ me¾a¿
Since ¾Ć½S WĆĆĀæ diStuĀøB tĆe dEĀæica¾e BalancE
oµ tHe
ĆĆNĆ
²³ AsS“mblyµ
PoSition cool±ng µAn HuB (17à 3-262)
½nSide oF µan (Ć6) marked "Ć
ĆPĆĆ ĆnStall Sixteen
tM 9-28¶5¸¹¹0-34
macýne Ćo¿¾S
(8),
µ¿a¾ waSHerS ĆĆ)Ć SĀæo¾¾ed nu¾S (Ć8)Ā»
and co¾¾er ĆinS Ć6) Secu³ing cooĀæing µan HuB ¾o FAnĆ
'
"
-
\
±
²NG
EDge
/
"±
²³
ºa»6¼7½¼
I
Fig1±r('
.1·262±²±
/²³spCRtl³³G co“µL¶³·g [¸¹³· bºadeS »EADInG
¼½ge fu¾ ĀæĆOĆĆ0³·.
Section XVI±±. REPA²R OF ENG±NE
SHROUD²NG AND ASSOC±ATED PARTS
¾¿ĆþĆ
Ge³eral
Ć
ĆiS SecƱon coveĀøS ¾He Āøepa±r oµ tĆe engine SĆĀøoudĆ
ing and aSSoƱated comĆonentSĆ ĆĆec±ĆĆc ½nStĆcĆ
tĆonS on d±SaSSemBlyĆ clean±ngà ±nSpec¾ionĆ and
aSSemBly accompany tHe rEpa±r opeĀøa¾ionSĆ
NOĆE
D½SaSSembĀæY oµ vaĀøiouS SĆĆoud compoĆ
nEntS otHeĀø ¾Ćan tĆĆ cooling µan ĆouSingĆ
SĆĀøoud ĀøailSĀ» and coveĀø pĀæateS waS acĆ
comĆl±SHed durĆ”ng Eâãg±nE diSaSSemBlyƤ
¾ĆĆĆĆĆ
Disassembly
I
a.
²±mov± ºEN boLts
(4,
Ā»igĆ 3-26Ć) ANd ĆĆmovE
two AcC±sà coÔ±âs ã5)ä ımoÔE Two cApsc¶“ws
±²³
³
ƦĆ
Ƨ 3-262)Ć s±LĆØ-lockĆng NUts ãé4) ANd Ā·ĆŖAt wAsh±rĆ«
ãé2) ATTAchĆNg eNgĆn± cooLiNg fƬN hoUs¾Ng Ć£Ć5) to
eNgĆnE cooL¾Ng
fƄn
hoUsing
“J
3îà ²emoÔE ±ighº
ĆÆApscĆEws ư4)Ʊ jocKwAsheĆs
µI)
ANd òlAt wAsh±rs
Ʀl
2¶
A
¼
TAc
Āæ
t
±
Ng dAmPeà ±Nd ANd óywhÓeL END
coõöiNg ÷An housiNgs to cooL¾ng
fƧn
±ng¾n± shroud
ãøà »igä 3-263)ä ²±mov± dAmp±R
ĆØnd
And »lywhE±l
±Nd coolĆNg »ùn hoUsiNgs¹
I
BĆ
ún Mod±L
Ć©
ûüý-l þ90ÿ2ü², REmoÔE »¾Ôe
heXAgoÄ heAd cApscrews
Ā·iĀø
Ā»ÄgƤ 3-263ƤĆ) AND
ÄocÄwÄSheĆs Ć£2Ć® AND Ʊmov± FAN hoÄ
sĆNĆ
sUPPorT
AssembLy Ć£3ÄƤ ²eÄov± ĀŗEn Asà ±ÄbL±d wAsher boLts
Ć£ÄĆ® AnD ¶emoÔ± Two Access cov±rs Ć£5)Ƥ ēmoÔ± two
cApscr±ws
(4¹
ÄgƤ 3-262)Ʊ s±lĀ»-lockĆNg nÄ
ts Ć£Ć4) ANd
»µAĀŗ wAsheÄÄ Ć£Ćø2) AĀŗtAchĆng ±nginE cooling faN
hoUSiNg ðø5Ä To ±Ng¾N± cooLing faN hoUsing Ć£ Ćø3Ć®Ä
ÄEÄoÔ± ±¾gLÄÄ cAÄscrĀ“ws Ć£4)Ć LocKwAsheĆs
ĀŗiĀ»
AND
FLAT wAshers
¼J
2) ¼ÄTAchiNg DAmPEr EnÄL ÄND ÄyÄ
w
h±e
l ĆŖnd
cooliĆg ÄÄn hoUs
½n
gs ºo c±NTriFUgAL FAn
hoUsĆNg Ć£6, FÄÄ
Ä
3-263Ä
l
ÄƤ ²EÄoÄĀ“ ÄlAmPer ±Nd AÄ d
ĔlywhEĢl “n
c
Āæ ëì쿽nG ĆĆ®n
hoÄ£sĆngsÄ
¾ĆĆĆĆĆ
CLea³“³g
ĆÆEfe³ ¼o ĆaragĀøaĆH 3ư3ñò
¾ĆĆĆĆĆ
±nspection µ³d Repai¶
A±
ĆÆeµer ¼o pa³NgĀøaĆH 3ó3Ć and 3Ć“38Ƶ
ĆĆ
ƶnSpect eng½nE and tĀøanSmiSS½on SĆĀøoud and
aSSocia¾ed Ća¸¾S ĆFigĆ· 3-263) and cylinde³ deĆøectoĀøS
(ùúgĆ» 3ü264) and Ćla¾eS ĆýĆgƵ 3-265) Ć¾ĆæÄ damagedĀ» Äen¾»
or cĀøacked cond±¾±onÄ ĆĆĀøa½gH¼en Ben¾ SĆroudS or
ĆÄateS aS near or±gĀ“naÄ SHaĆe aS ĆoSSiBleÄ
ĆÆepÄace
cĀøacked or Äadly Äroken SHĀøoud and pla¾eSÄ
¾ĆĆĆĆĆ
AssemBĀ·y
ĆĆ
J
ĤAch hoUsĆNg ãø3Ć Ā»Ćg¹ 3-262) to hoÄ£sing
ãø5î wĄth Two ĦAPscrĦws
½4¾
Ć«ELF-ĆocħĆNg nUts Ć£Ć4)
AND
Ä
ÄØÄ©twAsh±rs Ć£Ć2Ć®Ć
LnĆĆ:ĆĆ
ENĪN± coīĬL¾ng
ýÄn
hoUsÄgs Ć£Ć3 ANd Ć5à òĆgÄ® 3-262) oN cooL¾Ng ÄÆN
eNݾNE shıoÄ
D
ƦIĆ
IJgij 3Ä“263) And s±cu¶“ w¾TH EĆĆ
hĀŗ
cAPscĵews ã4à FĶgà 3-262) LocK wAsH±ķĸ ãø )à And »³Aº
wAsh±âĸ ãø2).
Ā·
ĆĆĆĆ
é¾tacĆ HouS½ng ĆĆ3Ā» F½gĆ· 3-262) ¾o ĆouSing ĆĆÄ)
WÄtà ¾wo caĆSCĀøEwS
ĆĆĆĆ
SeĀæFĆ“lock½ng nutS ĆĆÄ) and
fÄat waSHerS Ć12ÄĆ ÄnStall enGÄne cooÄing µAn HouSÄ
½ngS ĆÄ3 and ĆÄĆ figÄ 3-262)Äon Cent¸±µugal µan ÄouSĆ
½ng Ć6Ā» µ±
g
Ć 3-263ƵĆ) and SecuĀøe WÄtH E±gH¾ capScĀøewS
ĆÄÄ ĀµĀ½gĆ 3-262)Ć lock waSHErS (Ć)Ā» and Äa' waSĆeÄÄ ĆÄ2)Ć
ĆĆ
ƶnS¾aĀæl two Cool½ng FaÄ SHroud aCceSS ÄoVeĀøS Ć5Ā»
F½gÄ 3Ć“263) on cooĆing FAn engine SĆĀøoud ĆĆ) and
SecuĀøe ÄÄ tH Six aSSEmBlÄ”d waSĆeĀø BoltS ĆÄ)Ä¢
BĆĆ Ć”
ÄnStall ¾wo acceSS coVeĀøS Ćģà fĀŗgĤ 3Ä„263Ć»1) and
SEcurÄ” w±tH Ä0 aSSembled waSHer Äol¾S
âãäÄ
ÄnStall
µan ĆouS½ng SuĆpoĀøt aSSemÄĀæy Ć3) and Secure w±¹Ħ
µÿuĀø Hexagon Head caĆScĀøEwS ĆĆ) and lockwaSHerS
Ć2)Ć·
ħĆanÄØE
3
æçèéêëì