1996 ACURA RL KA9 Service Repair Manual

Evaporator/Blower Uni t
Replacemen t (cont'd )
8. Remov e th e wir e harnes s connector s an d th e SR S
mai n harnes s cli p fro m th e body . Disconnec t th e
connector s fro m th e multiple x contro l uni t (passen -
ger's ) unit . Loose n th e uppe r mountin g bolt , the n
remov e th e mountin g bolt s an d th e contro l unit .
WIRE HARNES S
CONNECTOR S
WIR E HARNES S
CONNECTOR S
SR S MAI N HARNES S CLI P MULTIPLE
X
CONTRO L
UNIT(PASSENGER'S )
9. Remov e th e dus t an d polle n filte r assemblie s (se e
pag e 22-68 ).
10 . Disconnec t th e drai n hose . Remov e th e self-tappin g
screws , th e mountin g bolts , th e mountin g nut s an d
the evaporator/blowe r unit .
NOTE : B e carefu l no t t o damag e o r ben d th e capil -
lar y tube .
6 x 1. 0 m m9.8 N- m(1.0 kgf-m , 7. 2 Ibf-ft )
DRAIN HOS E
EVAPORATOR-BLOWE R
UNIT
6 x 1. 0 m m9.8 N- m (1. 0 kgf-m , 7. 2 Ibf-ft )
11. Instal l i n th e revers e orde r o f removal . Mak e not e o f
the followin g items .
If you'r e installin g a ne w evaporator , ad d refrig -
eran t oi l (ND-OI L 8 ) (se e pag e 22-73 ).
Replac e th e O-ring s wit h ne w one s a t eac h fitting ,
an d appl y a thi n coa t of refrigeran t oi l befor e
installin g them .
NOTE : B e sur e t o us e th e righ t O-ring s fo r HFC -
134 a (R-134a ) t o avoi d leakage .
Instal l th e capillar y tub e alon g th e suctio n line .
NOTE : B e carefu l no t t o damag e o r ben d th e
capillar y tube .
Appl y sealan t t o th e grommets .
Mak e sur e tha t ther e is n o ai r leakage .
Charg e th e syste m (se e pag e 22-89 ), an d tes t it s
performanc e (se e pag e 22-76 ).
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Overhaul
NOTE: Th e blowe r moto r an d th e recirculatio n contro l
moto r ca n b e replace d withou t removin g th e evapora -
tor/blowe r unit .
1 . Remov e th e filte r li d an d th e dus t an d polle n filte r
assemblies , the n remov e th e bolt s an d th e recircu -
latio n housing . I f necessary , remov e th e self-tap -
pin g screw s an d th e recirculatio n contro l motor .
2 . I f necessary , remov e th e self-tappin g screws , th e
blowe r motor , th e self-tappin g screw s an d th e powe r
transistor .
3 . Pul l ou t th e evaporato r temperatur e sensor . Remov e
th e self-tappin g screws , the n carefull y separat e th e
housings . Remov e th e evaporator .
4 . I f necessary , remov e th e expansio n valv e an d th e
evaporato r lines .
NOTE : Whe n loosenin g th e nut s o f th e expansio n
valve , us e a secon d wrenc h t o hol d th e expansio n
valve . Otherwise , the y ca n b e damaged .
RECIRCULATIO N
CONTRO L MOTO R
Test , pag e 22-5 9
FILTE R LI D
UPPE R HOUSIN G
EVAPORATO RBlow dir t ou t o f fin swith compresse d air .
97. 4 mm (3.8 3 in)
Cor e cente r
32.7 mm (1.2 9 in)
EVAPORATO R
TEMPERATUR E
SENSO R
Test, pag e 22-6 3
LOWE R HOUSIN G
EXPANSIO N VALV E
POWE R TRANSISTO R
Test , pag e 22-6 3
5.Assembl e in th e revers e orde r o f disassembly . Mak e
not e o f followin g items .
Replac e th e O-ring s wit h ne w one s a t eac h fittin g
an d appl y a thi n coa t of refrigeran t oi l befor e
installin g them .
NOTE : B e sur e to us e th e righ t O-ring s fo r HFC -
134 a (R-134a ) t o avoi d leakage .
Instal l th e expansio n valv e capillar y tub e wit h
th e capillar y tub e i n contac t wit h th e outle t lin e
directly , an d wra p it wit h tape .
NOTE : Mak e sur e ther e is n o foreig n matte r stuc k
betwee n th e capillar y tub e an d th e outle t line .
Reinstal l th e evaporato r temperatur e senso r t o
it s origina l location .
Whe n removin g recirculatio n contro l motor , mak e
sur e tha t th e recirculatio n contro l door s an d link -
ag e mov e smoothl y withou t binding .
Afte r reassembly , mak e sur e th e recirculatio n
contro l moto r run s smoothl y (se e pag e 22-59 ).
Mak e sur e tha t ther e is n o ai r leakage .
RECIRCULATIO N
HOUSIN G
DUS T AN D POLLE N FILTE R ASSEMBLIE S
GROMME T
EVAPORATO R LINE S
CAPILLAR Y TUB E
TAPE S (Replace )
BLOWE R MOTO R
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Dust an d Polle n Filter s
Replacemen t
1. Remov e th e glov e bo x (se e sectio n 20 ).
2 . Remov e th e glov e bo x bac k cove r (se e pag e 22-65 ).
3 . Remov e th e filte r lid .
FILTE R LI D
4. Tur n th e ignitio n switc h O N (II) , an d se t th e recircu -
latio n contro l switc h o n RECIRCULATE .
5 . Pul l th e dus t an d polle n filte r assemblie s ou t o f th e
recirculatio n housin g a s shown . Separat e th e firs t
filte r assembl y fro m th e secon d filte r assembly ,
the n remov e th e firs t filte r assembly .
DUST AN D POLLE NFILTER ASSEMBLIE S
FIRST DUS T AN D
POLLE N FILTE R
ASSEMBL Y
SECON D DUS T AN D POLLE N FILTE R ASSEMBL Y
6. Remov e th e secon d dus t an d polle n filte r assembl y
fro m th e recirculatio n housin g a s shown .
SECON D DUS T AN D POLLE N FILTE R ASSEMBL Y
7. Remov e th e dus t an d polle n filte r fro m th e filte r
housing .
DUST AN D POLLE N FILTE R
FILTE R HOUSIN G
8. Instal l i n th e revers e orde r o f removal . Mak e sur e
tha t ther e is n o ai r leakage .
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