DMWR-9-2815-220
AVDS-1790 ENGINE OVERHAUL STANDARD
DEPOT MAINTENANCE WORK REQUIREMENT
DMWR-9-2815-220 - Page 113 of 1422
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DMR 9-2815±220
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the OIP is ±Ncluded o²ly iN tHe sectioN wHerE first referE²ced.
To Locate sucH
³´p's, Rµfe¶ to the L±st oF overHaU· iNs¸ectioN ¸roced¹resº
b.
Wear »±m±ts¼ ½its¾ a²d ¿oÀera²cesÁ
ÂacH wear lim±ts¾ f±ts¾ a²d toLera²ces
ta le co²taiNs tHe max±m¹mà m±²±m¹mÄ a²d key d±me²sioÅs of ÅeÆ or re¸a±r ¸artsº
ÇHe cleara²ces w±ÀÀ a¹tomat±caÀly be acHieved iF tHe mat±Ng ¸arts aÈe witHiN tHe
d±Me²sio²al toleÉa²ces listed i² tHe tablesÁ
´N some casesÊ a ¸art tHat is out of
toÀera²ce may be Used ¸rov±ded tHe mati²g ¸art is carefUÀly selected¾ a²d ËÌeÅ ÍtedÄ
±s ÎitH±² tHe maXimUm cÀeara²ce s¸ecified iN tHe wear Àimits colum²º
THe wear lim±t
i²dÏcates tHe ¸oi²t to wH±cH a ¸art may be ÐorN before re¸lacemeNt ±s reqUiredÑ
IN
order to ass¹Èe maximUm service¾ all ¸arts wHicH Have Not worN beyo²d d±me²sÒoNs
sHoÓ² i² the wear lim±ts col¹m²¾ or are ²ot damagedÄ w±ll ²oÔÕalÀy be a¸¸roved for
seÖVÒ×e
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SYÙbolsÁ
SyMboÀs em¸loyed ±N tHe Ðear l±m±tsÚ FitsÄ a²d toleraNce tabÀes are
±dent±ÛÜeD as follows:
*
ÝÞß AN asterisk ±² tHe wear l±m±ts colUm² iNd±cates tHat tHe ¸art must be re¸laced
wHeN ÎorN beyo²d tHe lim±ts giveN iN tHe s±zes a²d Fits of ²ew ¸arts coluàNá
â Ýßß ÇHe Letter ã¾ FolÀow±²g tHe toleraNce d±me²sio²s g±veN ±² tHe s±zes a²d fits
oF NeÐ ¸arts colUmN a²d the wear lim±ts coÀum²¾ iNd±cates
a loose fit
(cÀEaraNce).
ä ÝÞß ¿He letter Ǿ followi²g tHe toleraNce dime²s±o²s g±veÅ ±N tHe s±zes a²d f±ts
of Åå ¸arts coÀUæ a²d tHe wear Àimits colUm²Ê ±Nd±cates a t±ght f±t
(±NterfereNceç.
d
.
Cast ± Ngs Á
(1±
´ès¸ect aÀÀ Ferroés (cast ±roN¾ steeL¾ etcáç cast±Ngs For cracKs Uê±Åg
Magëet±c ¸artical metHod.
ì²s¸ect alÀ NoNferro¹s (alUm±ÅUmç cast±Ngs For cracKs
ésiNg dye ¸eNetra²t ítHodÁ
CHecK ¸art±cULarly tHe areas adjace²t to stUds¾ ¸±¸e
¸ÀUGs¾ or tHreaded ±²serts a²d ±² sHar¸ cor²ers a²d F±Àletsî
²2³
ï²s¸ect macH±Ned sérFaces of cast±Ågs for N±cKsà b¹rs¾ or raised ðtalÁ
ñarK daòGed areas for re¸a±r.
´3µ
CHeck aÀL mat±²g fla²ges aNd moU²tiNg ¸ads w±tH a stra±gHt edge or surface
¸Àate for war¸age.
ìNs¸ect òt±²g flaNges aNd mo¹Nt±²g ¸ads For d±scoLorat±o²
ÆH±cH may iNdicate ¸ers±sta²t oil leaKageó
²4³
´²s¸ect all ta¸¸ed o¸e²±Ngs For str±¸¸ed or daôged tHreads.
²5³
CHecK aLl cast±Ågs For coÅfoÈmaÅce w±tH tHe a¸¸À±cable õöP.
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e.
BaL· aÅd ÷eedle Bear±²øs ù
úefer to Çû
9-2¶4
For iÅs¸ect±o² oF a²t±üfr±ct±oN
beaR±NgsÁ
ýcþ
al
ÿearĀÅgs āor coNForma²ce to tHe a¸¸l±cable wear L±m±tsÄ F±ts
Ä
a²d toLera²ces tabLeÁ
f.
·
´Ås¸ect aLL stUds For daMaged or str±¸¸ed tHreads¾ be²t or Loose
coëd±tĂož or For a²y s±gNs oF stretch±²gº
²/3
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