TM-9-2815-220-34

ENGINE, WITH CONTAINER:TURBOSUPERCHARGED, DIESEL ,FUEL INJECTION ,90-DEGREE ā€œVā€ TYPE, AIR - COOLED, 12-CYLINDER, ASSEMBLY; MODELS AVDS-1790-2C (2815-00-410-1203) AND AVDS-1790-2D (2815-00-410-1204)

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

  TM-9-2815-220-34 - Page 385 of 532

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 ƁLƂc± 1hE ƃAn ²oĀŗoƄ GAƅEƆ ƇAƈƉ
ƊoƋ
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w¾Th The TAbs iN coNĀŗAct w¾Lh thE tƑAiL¾Ng edgE (F¾g¹
3-262ƒJ
). If
thE bLAdE
is
±Ñoded to Th± ±xteNT thAT
ANy pAĀøt oƓ thĀ“ LĀ“AdƔng ±dg± oĀ» thE BlAd± Ɣs hƔddƕn
By ƖhE gAgE, ĀŗhE ƗƘN mUsT bE rePlAc±dƙ
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 ¾À½S WÁ¿ diStuĀøB tƀe dEĀæica¾e BalancE
oµ tHe
ƚƛNƜ
²³ AsS“mblyµ
PoSition cool±ng µAn HuB (17Ã 3-262)
½nSide oF µan (Ƅ6) marked "ƅƆPƇƈ ƉnStall Sixteen
tM 9-28¶5¸¹¹0-34
macÀ½ne Êo¿¾S
(8),
µ¿a¾ waSHerS Ƌƌ)ƍ SĀæo¾¾ed nu¾S (Ǝ8)Ā»
and co¾¾er ƏinS Ƌ6) Secu³ing cooĀæing µan HuB ¾o FAnƐ
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±
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Fig1±r('
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Section XVI±±. REPA²R OF ENG±NE
SHROUD²NG AND ASSOC±ATED PARTS
¾¿ÀÀ¾Á
Ge³eral
ƅƀiS Secѱon coveĀøS ¾He Āøepa±r oµ tƀe engine SÀ¸oudƒ
ing and aSSoÓ±ated comƏonentSƔ ƕƖecĀ±Ć—Ć˜c ½nStƙcÚ
tƛonS on d±SaSSemBlyƃ clean±ngƃ ±nSpec¾ionÜ and
aSSemBly accompany tHe rEpa±r ope¸a¾ionSÈ
NOƂE
D½SaSSembĀæY oµ vaĀøiouS SƀƝoud compoƒ
nEntS otHeĀø ¾Àan tƀƞ cooling µan ƀouSingß
SÀ¸oud ĀøailSĀ» and coveĀø pĀæateS waS acĆ 
comƏl±SHed durĆ”ng Eâãg±nE diSaSSemBlyƤ
Ā¾ĆƒĆ€Ć€Ć„Ć…
Disassembly
I
a.
²±mov± ºEN boLts
(4,
Ā»igƝ 3-26ƞ) ANd ƑƟmovE
two AcC±sà coÔ±âs ã5)ä ımoÔE Two cApsc¶“ws
±²³
³
ƦƅƧ 3-262)Ɔ s±LĆØ-lockƔng NUts ãé4) ANd Ā·ĆŖAt wAsh±rĆ«
ãé2) ATTAchƔNg eNgƔn± cooLiNg fƬN hoUs¾Ng ãí5) to
eNgƔnE cooL¾Ng
fƄn
hoUsing
“J
3Ʈƀ ²emoĆ”E ±ighĀŗ
ĆÆApscƑEws ư4)Ʊ jocKwAsheƑs
µI)
ANd òlAt wAsh±rs
Ʀl
2¶
A
¼
TAc
Āæ
t
±
Ng dAmPeƑ ±Nd ANd óywhĆ“eL END
coõöiNg ÷An housiNgs to cooL¾ng
fƧn
±ng¾n± shroud
Ć£ĆøĆ Ā»igƤ 3-263)Ƥ ²±mov± dAmp±R
ĆØnd
And »lywhE±l
±Nd coolƔNg »ùn hoUsiNgs¹
I
BƆ
ún Mod±L
Ć©
ûüý-l þ90ÿ2ü², REmoÔE »¾Ôe
heXAgoĀ heAd cApscrews
Ā·iĀø
»āgä 3-263äÌ) AND
ĂocăwĄSheƈs Ć£2Ć® AND ѱmov± FAN hoąsƔNƅ sUPPorT
AssembLy Ć£3ĆƤ ²ećov± ĀŗEn Asà±ĈbL±d wAsher boLts
ãĉî AnD ¶emoÔ± Two Access cov±rs Ć£5)Ƥ ēmoÔ± two
cApscr±ws
(4¹
ĊgƤ 3-262)Ʊ s±lĀ»-lockƔNg nąts ãí4) ANd
»µAĀŗ wAsheċČ ãø2) AĀŗtAchƔng ±nginE cooling faN
hoUSiNg ðø5Ć To ±Ng¾N± cooLing faN hoUsing Ć£ Ćø3Ć®Ä
ĎEďoÔ± ±¾gLĐđ cAĒscrĀ“ws Ć£4)Ɔ LocKwAsheƑs
ĀŗiĀ»
AND
FLAT wAshers
¼J
2) ¼ēTAchiNg DAmPEr EnĔL ĕND Ėyė
w
h±e
l ĆŖnd
cooliƏg Ęęn hoUs
½n
gs ºo c±NTriFUgAL FAn
hoUsƔNg Ć£6, FĚě
Ĝ
3-263ĝ
l
ĆƤ ²EćoÄžĀ“ ğlAmPer ±Nd AÄ d
ĔlywhEĢl “n
c
¿ ëì쿽nG íîn
hoÄ£sƔngsĝ
Ā¾ĆƒĆ‡Ć‡ĆˆĆ‰
CLea³“³g
ĆÆEfe³ ¼o ƖaragĀøaƖH 3ư3ñò
Ā¾ĆŠĆ‡Ć€Ć‹ĆŒ
±nspection µ³d Repai¶
A±
ĆÆeµer ¼o pa³NgĀøaƖH 3ó3Ì and 3Ć“38Ƶ
ƍƎ
ƶnSpect eng½nE and tĀøanSmiSS½on SÀ¸oud and
aSSocia¾ed Əa¸¾S ƋFigĆ· 3-263) and cylinde³ deĆøectoĀøS
(ùúgĆ» 3ü264) and Ɩla¾eS Ć‹Ć½Ć˜gƵ 3-265) þÿĀ damagedĀ» āen¾»
or cĀøacked cond±¾±onĂ ÕѸa½gH¼en Ben¾ SƀroudS or
ƖăateS aS near or±gĀ“naĄ SHaƏe aS ƖoSSiBleą ĆÆepĆace
cĀøacked or ćadly āroken SHĀøoud and pla¾eSĈ
Ā¾ĆƒĆ‡Ć‡ĆĆ
AssemBĀ·y
Ƒƒ
J
ĤAch hoUsƔNg ãø3ƍ »Ôg¹ 3-262) to hoÄ£sing
ãø5î wĄth Two ĦAPscrĦws
½4¾
Ć«ELF-ƐocħƔNg nUts ãÌ4)
AND
Ĝ
ĨĩtwAsh±rs ãÌ2îÜ
LnƓƔ:ƕƕ
ENĪN± coīĬL¾ng
ýĉn
hoUsÄ­gs ãÌ3 ANd Ì5ƍ òÔgÄ® 3-262) oN cooL¾Ng ÄÆN
eNݾNE shıoąD
ƦIƃ
IJgij 3Ä“263) And s±cu¶“ w¾TH EƔƅhĀŗ
cAPscĵews Ć£4Ɔ FĶgÜ 3-262) LocK wAsH±ķĸ ãø )ƍ And »³AĀŗ
wAsh±âĸ ãø2).
Ā·
ƑƖƗƘ
é¾tacƀ HouS½ng ƋƎ3Ā» F½gĆ· 3-262) ¾o ƀouSing ƋƎĊ)
Wċtƀ ¾wo caƏSCĀøEwS
ƙƚƛƜ
SeĀæFĆ“lock½ng nutS ƋƄČ) and
fčat waSHerS Ƌ12ĎƐ ďnStall enGĐne cooĄing µAn HouSđ
½ngS ƋĒ3 and Ƅēƃ figĔ 3-262)ĕon Cent¸±µugal µan ĖouSƒ
½ng Ƌ6Ā» µ±
g
ƈ 3-263ƵƎ) and SecuĀøe WėtH E±gH¾ capScĀøewS
ƋČĘ µ½gƔ 3-262)ß lock waSHErS (Ǝ)Ā» and ęa' waSƀeĀĚ Ƌě2)ƈ
Ɲƞ
ƶnS¾aĀæl two Cool½ng FaĜ SHroud aCceSS ĝoVeĀøS Ƌ5Ā»
F½gĞ 3Ć“263) on cooƂing FAn engine SÀ¸oud ƋƎ) and
SecuĀøe ğĠtH Six aSSEmBlÄ”d waSƀeĀø BoltS ƋČ)Ä¢
BßàÔ
ďnStall ¾wo acceSS coVeĀøS Ć‹Ä£Ćƒ fĀŗgĤ 3Ä„263Ć»1) and
SEcurÄ” w±tH ě0 aSSembled waSHer āol¾S
âãäÄ
ďnStall
µan ƀouS½ng SuƖpoĀøt aSSemć¿y Ƌ3) and Secure w±¹Ħ
µÿuĀø Hexagon Head caƏScĀøEwS ƋƎ) and lockwaSHerS
Ƌ2)Ć·
ħƀanÄØE
3
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