DMWR-9-2815-220
AVDS-1790 ENGINE OVERHAUL STANDARD
DEPOT MAINTENANCE WORK REQUIREMENT
DMWR-9-2815-220 - Page 1027 of 1422
)
)
±
,
±
)
-±²³·´µ¶¸¹º
»¼½
¾¿ÀÁÂ
ÃÃÃÄÅ
DUR 9·285±220
Section
XXX.
OVERHAUL OF fU±l INJ±CTOR NOZZl±
:
-
.
5-122.
Gnera².
³his sectio´ covers overµau² o¶ tµe ¶·e² i´jector nozz²es
(¸¹gº
5²9³´ (5/831´µ
Speci¶ic i´structions on disassem²y, c²ea´i´g, i´spe»tio´¼
½epair¾ and asseM²y are inc¿·dedÀ
WeÁr ²iÂitsà ¶itsÄ to²erances, and overµau²
i´spectio´ pÅocedures (OÆP's) ¶or indÇvÈdua² coÉponents are a²so inc²uded.
5¶·23.
-DisasseÂb²y and C²ea´ingÀ
a.
ÊisasseÂb²Yº
Ëe¶er to
T
¸¹28º5»220¶34.
NO̱
Nozz²e sµou²d not be dÈsasseͲed un²ess it ¶ai²s testing described iÎ
ÏaraÐrapµ
5¼º24,
b
(5/832´.
bÑ
Ò²ea´ingÀ
NO̱
D
not use sµarp too²sÓ wÔre brusµesÄ or abrasive ÕterÇa²s to c²ean
tµe nozz²e or nozz¿e bodyÀ
½¾¿
Önera¿º
Ëe¶er to paragraph
5¶3À
aÄ bÄ and c
(5/Á
´
¶or ge´era²
c²ea´ing instructionsº
(2´
Ìest ×Ø×arationÙ
C²ea´ exterior o¶ nozz²e to reÚve carbon a´Û dirtÑ
Üo ´ot a²²Ýw dirt to enter nozz²e ¶ue² in²et oÏening À
±
(3´
Þue² inßector nozz²e asseÂb²àÑ
Soak nozz²e body i´ carbon áeâãving so²ä
vent to reÂove Éaåor carBon æeÏosçtsº
ËeÂa1n1´g carbo´ deÏosÇts sho·èd be éêoved
usi´g a so¶t c²oth or ¶e²t pad a´d Âëtton ta¿²oìÀ
A Ïiece o¶ so¶t ìoodÄ soaKed i´
oi² íy a²so be ësed as a carbo´ îeêoverÑ
(4´
Nozz²e sïrað oriñicesÑ
Reòve carbon ¶roê the oriñices oñ tµe óoôô²e
body by soõng nozzöe Boæy ÷´ a carbon reÂovÇng so²ve´t o´²yÑ
d
´ot cèean
ori¶Çces ìitµ c¿eanÇng ìÇre as thÇs øthod ìDzù dÇstort noôô²e ori¶ices aúd a²so
ûy b²ock oÏening dëe to ìire breakageÑ
Â5´
Þue¿ inüector ho¿der and associated ýartsÑ
C²ean a²¿ parts thoáougµ²yÑ
þe suÅe µanæs are KeÏt ÿree ÿroê accuêuĀatço´ oā grease ìhich ìi²² cause coĂ²ecă
tion o¶ dust and grit on partsĄ
Cover or ìraÏ a¿ą parts a¶ter c²eaning to protect
the ¶roĆ dirt accuÂë¿ationÀ
5¼º24Ã
ć´spectÇonÑ
a±
Ĉenera¿Ñ
Inspect ¶·e² ĉ´jector ´ozz²es accordÇ´Ċ to ĉ´strëctÇo´s i´ Ïaraă
ċraph
5¼4 Ä5/2
´
and the OIČčs ĉ´cĎ·ded Çn thÇs sectio´Ñ
ďear ²ĉÂĉtsÄ ñitsÄ and
to²era´ces ¶or ¶ëeĎ ÇnĐector noôôĎes are ²Çsted Ç´ tab²e
5¼44 Å5/835´Ã
See Ïarađ
ĒraÏē
5¼4Æ
b and c
Å5/3
´
¶or
explanation
oñ ìear ĎÇÂÇts¼ ¶ÇtsĔ a´d toèera´cesĕ
5/83Ç
Back to Top
