DMWR-9-2815-220
AVDS-1790 ENGINE OVERHAUL STANDARD
DEPOT MAINTENANCE WORK REQUIREMENT
DMWR-9-2815-220 - Page 37 of 1422
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DMR 9-2815-220
1-5.
(Cont)
·
.
\
±a²
crank³ase
breathEr
-System. ´Tµhe engine ¶Ranl¶ase b·atHeR
sysTEm is
complEtELy
en¶Losed
w
A¸ws
¹ºe engine to be
subMrgEd
witHout
EntrAncE
of
wAtEr
anD
pENIts
.
t»e ¶Rank¶ase to be venteD¼
T½e
brEA
.
thEr syst±
I
s v
ente
d
±
t»Roug» tHe
lEft
tu
r
o
s
u
p
e
rc
H
Ar
ge
r
ex»aust out¾et into tHe ve»I¶¿e ex»aust
systE²³
±
':·
²
´
(b)
FiRe extinGuisHeR sYsteM.
T»e engine
Is EquIppEd w
i
t
» À
fIrE
ExtÁnÂ
g
u
I
s
h
e
r tUbE lCAtED
i
n
tÃe
V
.
µIs
tUe
Is connEctEd
t
o
t»e engIne ¶oÄpaRtÂ
¶nt f
i
r
e extinguisHeR sÅsteMÆ
T»e tÇBe
hAs s·ll HolEs drIllEd Along tHE Ent¸rE
lEngth
to DiRe¶t t»e
cArBon
DioxiDe
(C²
fIrE
extinguis»eR
f
u
Id in prEdEtEr¹inEd
d¸REctIons Aº»¼d cylIndE½, fUEl InjEc¾Ion pU²p¿ And ¸ntErcylIÀdEr c
o
m
p
on
ents
In c
a
s
e
o
È
fI
Re
Á
³14´
TRansMitteÉ anD swit¶»esÊ
ËHe engines
ArE
equippeD
wIth
an
oil prEs-
sÌRe gage tRan
s
m
i
tt
Er
!
An
o
teÍpeRatuRe tÎan
s
m
Itt
e
r
:
A low
oi¿ pÎessuÏe
wAÂIng
l¸ght switch;
an
d
À HigH engine oiÐ teÍPeRatuRe
wAøÄg lIght switchÅÆ Çn
ÀDDÑtion
to tHese,
tHE
AVDSµ1790¶2dR
engÑne aÐso is eQuipPeD wit» an auxi¿ÑaRÅ genÒRatoR
hIgh o¸È
pRessuRe
sEnd¸ng
swÑt¶H.
.
"±
²,³
ÉA) ÊOIl
ÓÔssuRe ÕaÕe tRansmitteR.
ËhE ELEctrIcAlÌoIl pÍssÎÏE
gage tRansÖ
¹ÐttEr Is
¿o¶ateD to t»e
fÑnt of
t»e ¶Rank¶ase at
thE opEnIng in tHE gAllEÒ lInE
BEÓow
t»e
ÔoÁ
1
rIght cylIndErÁ
T»is seaÐeD tRansMitteR
c
o
n
sis
ts of
a
thÍAdEd
p×ate to
whIcH A dIApHrAgÕ¿ A rAdIAÈly notcHEd sPring¿ And An oVErloAd gÖRd
PÐate
aØÒ
crI¹pEdÁ
×lEctricAl ÍsIstAncE
in tHe tRansÄitteR
vArIEs dIrEctly As thE oIØ
prEssUÍ VAr¸EsÙ
ËHE ÍsUltInG VAr¸AtIon In thE cUrÍnt Is tRAns²IttEd to tHE
EÓEctrIcAl oIl
gage on t»e ve»i¶Ùe
IÚstrÛÜEnt
paneÚÊ
(b) Ýow oil ÞrEssurE wAß
i
n
Õ ¿iÕ»t swit¶H.
ËHe ¾ow
oil
pÎessu·
wAàIng
láght
swit¶»
âs Fu߸shED
wità t»e eng
Ûne anÜ Ýs ¿o¶ateD at
thE
ÐoweR RIg»t
sIdE
of
tHe ¶RanKs»ÀÞt ßmpeR
And o¸l
ÈIÐteÎ
hoUsingã
äHE EÈEctr¸åAl contAct po¸nts
Iæ this swItch
¶àose wHen tHe
oIl
pRessuÎe
In thE
maIn
oIÈ
ga¿¿eá
I
s
bEÈow
1· ¸ ¹
ps¸ã
âHe ¶omPãetIon
of thE ElEctrIcAl cIrcu¸t
¿äg»ts
thE
Ðow
prEssUrE
wçèIng lA¹p
on t»e ve»i¶¿e ÑnstRuånt paneÐæ
(c)
é¸È
teçÓeRatuRe
trAns¹IttErê
ëHE oIì
tempeRatuRe gage ètRansmitteR
IS
lo
¶ateD
At thE
uPpeR
r¸ght
s
o
f
t»e ¶ÎanKsHaÞt
dAmpEr Aíd o¸l
Èi¿teR Housing
AîovE thE oIÈ prEssurE
·gu¿atoR va¿ve.
(d)
H
I
g
h
engine
oiÈ
teÍéeRatuRe waêing ëig»t
swItchÁ
äHE o¸l
tempeRÀtuRe
wç
r
i
n
g
light
swì¶Ã
âs ïocAtEð ñn
tÃe oí passage aîove tÃe
±
¿ p·ssuRe waïing
lòght sw¸tch ¸n
t»e
rIght sidE
oÈ
tHE cr
ank
sHA
F
t DaÍpeR
And
o
Il
Èi¿teÎ HousIng¼
Ëðe wañing ¿ig»t
sEnd¸ng swItchó thEôõstAtIcAlly controllEd ElEctrIcAÈ contAct
pöInts÷
³¿ose w»en
o¸l tEønErAturE ¸n thE EnQIùE
òaIn oiÐóôassaõe Re
Ac
h
es
2º»
±
»°¼
Ëðe
co²plEtIon
oÈ
thE EÈEcúricAl cIrcUIt lIgûts thE oIl high
tempeRatuRe
WArnIng
lçÕp
on töe veHi¶Ðe instRuånt
pAnElÙ
(E}
üuxiÈýAr
EnErAtor hI H
o
¸
l
RessuÏe
sEnd¸Ä
swItch
÷DeÐ
AVDSµ½¾9¿À
2Ár
on
l
y
Æ
e Àux1
øaRù geneRatoR
øg
0ø
PÎessu·
s
en
þn9
_ÿsw1 c
øs
o¶aúe
at
tðe
râght fÏont of thE cÏAnkcAsE ¸n
tHe tee töat ûÇnts t»eü'ýÐ pRessÇÎe gage
tþÀnsÿItteRĀ
âHIs swit¶H pÎeVents siÍÇÐtÀneoÇs oāeRÀtIon oĂ
thE
ăin engÑne
And
A
ux
i
ȸ
À
r
Ą geneÎÀting sąsteĆć
´
1
/±²,
I ;
s a
rcvJt.< S³ Pe
´
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