DMWR-9-2815-220
AVDS-1790 ENGINE OVERHAUL STANDARD
DEPOT MAINTENANCE WORK REQUIREMENT
DMWR-9-2815-220 - Page 115 of 1422
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DMWR 9·2815-220
5-4.
(Cont)
a hexagon.
This provides a locking effect when the stud oR boLt Is thReaded into
the inse±t²
(2±
³ns
P
ection²
´nspect alµ sc±eW th±ead InseRts foR secU±e fit in the cast-
ing and foR ga
¶·eD oR stRipped thReads¸
K²
SHeet Metaµ ¹aRts²
ºt±aighten pa±ts as NecessaRy and check foR BRoken weLds,
loose RIvets» oR weµd nUts¼
½f pa±ts a±e cRac¾ed o± toRn¿ they mUst be ReÀaiRed oR
±eplacedÁ
Chec¾ sh±oUd seals foR haRdness» teaRs» oR othe± daÂageÃ
MaRk daÂaged
seals foR ±epLaceÄnt if the pa±t is otheÅÆse seRviceaÇleÃ
5²³.
ÈepaiRÁ
a²
GeneRalÃ
Most engine pa±ts aNd coÉponents maY be ±epai±ed as oUtµIned below²
Any RepaÆR p±OceduRes that aRe peculiaR to a specific paRt o± component is cove±ed
Æn the sectÆon oR paRagRaph ±elatiNg to tÊat iteÂÁ
Afte± ±eËaiR» cµeaN all paRts
thoRoÌghµy to pRevent ÂetaL chips fRom ±epaI± ope±atÍons
o± ab±asIves Used in
Repaα opeRationsÏ fRo ente±Ðng tÊe Wo±king pa±ts of the engineÑ
Dz
ÒeneRaµ ÈeÓaiR of ÔastinÕsÖ
´1µ
Èeplace all castings when c±ac¾s have penetRated high stRess aReas sUch
as fiLLets o± weBbing²
¶·¸
Èeplace al× castings which do not confoØÙ to toleRances specified in the
appRop±iate oveRhaUl inspectIon pRocedu±esÁ
¹3º
ÈepLace aLL castÚngs on which machined suRfaces aRe buR±ed o± nic¾ed to
the point of iÂpaiRing sUÛseqUent assembÜÝ o± opeRatÚon²
Èepai± ÂÞnoR daßge to
àchined sURfaces With a fine ÂiLµ fiLe o± c±ocUá cLoth dipped In d±y cLeaning
soµveNtâ
»P¼0½68¾,
ãype ´ä)¸
¿ÀÁ
ÈepLace alL castings having fåaNges which aRe severely waRped and cannot
be
±epaiRed to p±ovide a pRopeR seating sU±face with its mating paRt²
ÈepaiR
æiçoR waRpage of èUnting flanges aNd éUnting pads Bê WoRKÚng sURface acRoss a
sheet of cRocus cLoth heLd tightlê on a suRface plate oR siÂilaR flat sU±faceë
ÂÃÄ
ÈepaIR daÂaged pIpe th±eads in tapped holes WIth a Used tapë
ìíîE
ïipe pµUg thReads Ín castiNgs Âust ðe in good condItion to p±event oil
µeakage¸
»6Å
Èepµace damaged
sc±eW th±eaded inseRts²
ÈefeR to paRag±aph
³-Æ »³/8
Ç.
)
c.
ña
1±
aNd ìeedle ñea±Ingsò
ÈÉÊ
Èepµace aµµ gaLLedó pItted» o± daôaged bea±ings¸
5Ë5
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