DMWR-9-2815-220
AVDS-1790 ENGINE OVERHAUL STANDARD
DEPOT MAINTENANCE WORK REQUIREMENT
DMWR-9-2815-220 - Page 137 of 1422
5-12.
DMWR 9-2815±²20
(Cont)
±11)
Check clearaNcE bEtweeN thE lower maiN Thrust BEarIng fLaNgE aNd thRusT
BearIng cap iN the saMe MaNNER as shown in fIgure 5²7 ±5/25)³
±12´
µepEat steps thRee ±3´ throUgh sevEN ±7) aBovE.
±13´
¶heck thE insIDE diaMeTer of the main anD thrUst Bearing Bores wITh a
dia· BorE inDIcaToR as showN in FIg¸RE 5¹6 ±5/24´ agaiNst The ºIMiTs
spEcifiEd In TaBle
5-1
±5/17´»
µep·acE BEaRings which do noT ¼eEt thEsE
rEquiREMents½
¾Ew bearings must also bE dIaL BorE checked.
µeMOvE thE
MaIN bEarIng caps anD BeaRing ha·ves froM thE cranKcase aNd chec¿ coNÀ
Tact sUrf acEs as iNdÁcatED by PrUssiaN transfEr.
µEplacE bEariNgs
that do noT Make 75 pErcent conTact wiTh cRankcasE BEaRing Âores ½
µEpEat diaL borE check if new Bearings arE INstaÃLED»
5Ä12.1
µEcLamaTionÅ
ÆsE the procedures out·inEd BELow to rEcLaim thÇ cRanÈcasE
J
assEÉBly aNd assocIated parts»
a»Ê ¶RaNkshaft maIn BearinG caËs.
¶RankshaFt MaIÌ beaRIng caps (P/¾'s Í32047Î
and 8725141) caN BE RecÏaIMED by METaLspRay accorDing to The proceduREs outLinEd
BElÐwÅ
Ñhis pRocEDuRe dEtails the recLamation of two areas oN the caps, thE main
bEaring fiT and The sIDe maTing FacEs
±To BÒockÓ.
µEfeR to ÔÕÖ ×32Ø47Ù ±5/37 )
aÚD ÛÜPÝ 87Þ5ß41 ±5/38 ).
¾Ôàá
âo DeMoNstRaTE proFiciency aNd attaIn certiFIED sTatusã aN opERatoR
shaLL FLaME spray a
Est äiece In accordaNcE wITh this spEciFication
1
which sha·L BE dEstructivELy anD MetaLLogRaphiåaLLy examINEd to assure
j
Bond INTegrity and coating so¸NdNEss»
·
I
:
æo maiNtain certified staTusç aN opErator Must consistEnTLy produce
acceptaBLE REpaiRs Re·aTive to thE flaME sprayed coating anD pass a
yeaRLy destrUctive ExamènatioN for Bond aNd coaTIng intEgrity.
)
(³)
éEgrease caps aNd BEvEL aLL shaRp EdgEs.
±2)
Wash areas to BE coated using êetco soLvEnT.
±3)
ëask cap BoTtom matIng face Before grit BlastIng aNd spraying thE maIn
bearing Fit with ½01Ø Ä .020 thIck coppErç bRass oR steeL»
ìsE
AntiíîonD oN steeL Masking material»
¾Ûïá
ðt is NoT necEssary to masñ other aReas of the cap èN pRepaRation
foR BLasting oR spRayiNg of thE siDe matiNg FacEsò proviDed the
caps aRÇ sitting oN ThÇ BotTom MatiNg facesó
æhE siDe matiNg facÇs
of MaNy caps, placED next to each othERç caN be grit BLastEd and
spRayed at the SamE tIme³
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