DMWR-9-2815-220
AVDS-1790 ENGINE OVERHAUL STANDARD
DEPOT MAINTENANCE WORK REQUIREMENT
DMWR-9-2815-220 - Page 114 of 1422
DMWR 9·2815±220
5-4.
(Cont)
'
g.
Dwel Pins±
Inspect dowel ²³ns for Looseness oR ´amage.
Mark Loose ²µns
For RepaiR¶
h¶
Gars an´ Shafts¶
THe Followµng geneRaL inspection instRuctµons appLy to
geARs an· s¸a¹tsº
NOTE
There are no estabLµsHe´ weaR Limits For gear teetH and s²LiNes¶
jUdg»ent is ReqU³re´ to dete¼ine need For repLacement¶
(1}
Inspect a½L gears an´ s¾aFts FoR cracks
¿ood
±2}
Ins²ect alL geaR teeth an´ splines for wear, shaR² Fµns, burs, an´ gaLLe´
oR ²³tted sURFaces±
²3)
Ànspect sHaFt an´ geaR ¾ub s²L³nes For ´amage, wear, an´ F³t wµtH spLµnes
on Áating parts.
Âtµng spLines must match withoÃt bindiNg or Looseness.
³4´
Äheck alÅ gears an´ s¾afts foR conFoRmance witH the appL³cable oveRHauÅ
µnspection ²roceduRes.
i±
BusHinÆs, Çiners, and Bushin
a
-tYÈe BeaÉinÊsº
THe FoLlowµng geneRal instRÃcË
tÌons ap²ly to busHÍngsÎ Ïners, an ÐusÑÒngÓtype bearµngs.
µ¶·
ÄhecK a½l bUsHµngs, lµneRs, aÔd bus¾ingÓty²e bearings for secure Fit in
theµR Res²ectiVe cast³ng oR Õatµng paRt, an´ foR tHe eVi´ence of heatµng, wHÖcH may
be µndicate´ by ´µscoLoRation oF bus¾³ng or bearµng surFace.
±2¸
×ns²ect FoR wear, bURs, nicks, oR outÓofØRoUn´ coÙ´µtionº
¹3)
Äheck FoR ´³rt ³n lubRµcation hoLes oR grooves±
ÚoLes an´ gRooves mÃst
be cLean an´ FRee From damage to ³nsure pro²eR LUbr³cation.
º»¼
Ànspect tHRust Faces of bushingÛty²e beaRings foR wear an´
Ü
by temporarµLy
assembling matÝng ²art
Þ
s and c¾ecßing end pLay wµth a FeeLer gage µnseRte´ between
tHe thRUst faces±
½¾¿
Ähecà for conFormance to tHe applicabLe oVerhaÃl µns²ect³on procedÃres±
J±
Screw ThRea´ ánseRts±
À¶·
OescRiEtion.
âo ²eãÁit HµgheR stResses on studs an´ bolts tHat are set
in alumµnum castängs, scRew tHRea´ µnseRts oF a stronger metal are µnstaL½e´ into
wHåcH the stÃds oR bolts are tHRea´e´.
The µnserts aRe s²µral steel coils hav³ng
a Rµg¾t han´ threadÓsHaped FoR» oæ the µnsµ´e
and on tHe oUtside ´µaÕçteR of tHe
coiLs±
A
baR oR tang at tHe bottom eÙ´ oF tHe coil, whµch µs engage´ by an
µnseRtµng tool, µs use´ foR thRea´µng t¾e µnsert into tHe castingè
Some µnseRts
)
Have a seRRate´ tootH sectµon at the to² end of the coµl to stake them µÙ pLace in
tHe castings¶
étheR µnseRts ¾aêe tuRÙs at tHe centeR oF tHe coµl in the foë oF
¾/Á
Â
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