DMWR-9-2815-220
AVDS-1790 ENGINE OVERHAUL STANDARD
DEPOT MAINTENANCE WORK REQUIREMENT
DMWR-9-2815-220 - Page 49 of 1422
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DMWR 92815220
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Section
III.
DIFfERENC±S BETWE²³ MOd±LS
1-8.
General´
µs sect¶on ·escr¶bes the ¸¹ººerences betwee» the eng¶ne Mo¸els
•
AV¼S-½790-2C, AV¾¿À1790Á2CA AVdS-1790-2d, AVdSÃ1790Ä2dA an· AVdSÅ1790Ã2dÆ.
All
mo·els are s¶Ç¶ÈaÉ; an¸ aÈÈ use the saÇe major coÇponents.
Êhe ÇaJor coÇponeËts
cons¶st oº the crÌkcaseÍ cÎa»Kshaºt cyȶn·eÎs, p¶stonsÏ connect¶ng ro¸sÍ caÐÑ
shaºts, ·amper hoUs¶»g turbosÒpeÎchargersÍ staÎter ºuel ¹nJect¶on pump, an·
ºuel suPply pÓÔp´
a.
Mo¸el AVDS Õ790Ö2C×
Th¹s eng¶ne ¶s equ¶ppe¸ w¹th a 28 volt 650 aÐpeÎe
o¶Ø cooÙe¸ ·Ú generator.
b.
MÛ·eÈ AVDSܽ790-2CA´
Êh¹s eng¹ne ¶s sÝm¶Þar to Mo·eÈ AVdSÖ½790-2C
except tHat ßt ßs eQußppeà w¶th a cÈea» a¶r package cons¶sti»g oº the ·ust
·etectoÎ systeÇ an· the ¸ust eJectoÎ systemá
ânless speciº¶e· as Mo¸el
AVDS-½790-2CAÍ only aÈØ ÎeºeÎences ¶n this manuaÈ to the Mo¸eÈ AVãS-½790-2C
wiÈl apPÈy to the Mo·el AVãSä1790å2CA.
(½)
Dust detectoÎ SYsteÇ.
The ·ust ·etectoÎ systeÇ pÎov¶·es ·ust
¸etect¶o»
capæçèétßes êoÎ ëust be¶ng ìngeste· ¹nto the e»g¶»e a¶Î ín¸uct¹on
system.
(2)
Dust îïectoÎ Sðstemñ
The ·ust òJector systeÇ pÎov¶·es ¸Òst eJect¶on
capab¶l¶t¶es ºor ·ust be¶ng ßngeste· i»to the veh¹cle a¶Î cÈea»er systeÇ.
c:
Mo·el AVãS-1790-2ó.
Th¶s eng¹ne ¶s s¹Ç¶ôar to Mo·el AVDS-½790-2C except
that ¹t ¶s eõu¹ppe· ö¶th a 28 voltÏ 300 ampeÎe a¶Î coole· ·Ú generator.
·á
Mo·eØ AV¼S-½790-2óA.
Th¶s e»÷¶»e ¶s s¹m¶ØaÎ to MÛ·el AV¼Sø½790ù2d eXcept
that ¶t ús eõu¶ppe¸ w¶th a clean a¶r package as ·escιbe· ¶n b. above.
ûnless
spec¹º¶e¸ as üo·eØ AVãS-1790-2dAÍ onÈy aÈÈ reºerences ¹n th¶s ÇanÒal to the Mo·eØ
AVdS-½790ý2ó w¶Øl appÈy to the Mo·el AVDS-½790-2dA.
e.
Mo·eÈ AVDS-1790-2þÿĀ
āh¶s eng¶ne ¶s s¶m¹ĂaÎ to Mo·el AVDS-1790-2d except
that ¹t Has a power taăeĄoºº Çounte· on the ·aÇpeÎ hous¹ng, an¸ a soÈeno¹¸ coną
troØØe· throttØe ȶnkage ·esigne·
Ć
to hol· a constant eng¶ne revolut¹ons per m¶nute
ºor opeÎat¶o» oº the power take-oºº un¶tć
The tuÎbosupeÎchargeÎs are locate·
appÎox¶ÇĈteĉy 2´50 ¶»ches ¶nboar· wh¶ch necess¶tate· reĊ¶n¸ex¶»g the tuÎbosuperċ
chaÎgeÎ outlets to accoČčo¸ate the neö Øocat¶on.
Th¹s Ço·eØ ¶s »ot equ¹ppe· with
eng¹ne ĎnstalØat¶o» gui·es´
-1±s
MoOlL
²³ eG•nf
wm; -#e
:vSrDEca
µsSlµ
(½)
ďÈĐheelá
The ºlywheeØ has a» ¶nternal Îing gear ºor ¸Î¶v¶ng the
transǹss¶on anà ßs mounte· to the cÎa»kshaºt thÎoÒgh an a·apteÎ.
The tÎa»sċ
Çiss¶on a·apteÎ (hous¶»gđ serves as a spaceÎ ºor attach¹ng the tÎansm¶ss¶on
to the eng¹ne´
(2Ē
Oveκloö ºuel×
ďuel ¶»Jectioē puÐp oveκloö ºueÈ ¹s ÎoÒte· bacĔ through
the ºÎont eng¹ne shrouĕÍ an· the ºueØ retuÎn tube cross at the Îear oº the
eng¹ne ¹s blocke¸ ×
j
Ė
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