Dodge Sprinter 2006 Manual page 2099

VA
m ou n t in g br a cket s, or a loose com pr essor clu t ch
a ssem bly.
Dr ive belt s a r e speed sen sit ive. At differ en t en gin e
speeds a n d depen din g u pon belt t en sion , belt s ca n
develop n oises t h a t a r e m ist a ken for a com pr essor
n oise. Im pr oper belt t en sion ca n ca u se a m islea din g
n oise wh en t h e com pr essor clu t ch is en ga ged, wh ich
m a y n ot occu r wh en t h e com pr essor clu t ch is disen -
ga ged. Ch eck t h e ser pen t in e dr ive belt con dit ion a n d
t en sion a s descr ibed in Coolin g befor e begin n in g t h is
pr ocedu r e.
(1) Select a qu iet a r ea for t est in g. Du plica t e t h e
com pla in t con dit ion s a s m u ch a s possible. Swit ch t h e
com pr essor on a n d off sever a l t im es t o clea r ly iden -
t ify t h e com pr essor n oise. List en t o t h e com pr essor
wh ile t h e clu t ch is en ga ged a n d disen ga ged. P r obe
t h e com pr essor wit h a n en gin e st et h oscope or a lon g
scr ewdr iver wit h t h e h a n dle h eld t o you r ea r t o bet -
t er loca lize t h e sou r ce of t h e n oise.
(2) Loosen a ll of t h e com pr essor m ou n t in g h a r d-
wa r e a n d r et igh t en . Tigh t en t h e com pr essor clu t ch
m ou n t in g n u t . Be cer t a in t h a t t h e clu t ch coil is
m ou n t ed secu r ely t o t h e com pr essor, a n d t h a t t h e
clu t ch pla t e a n d pu lley a r e pr oper ly a lign ed a n d h a ve
t h e cor r ect a ir ga p. (Refer t o 24 - H E ATING & AIR
CONDITIONING/CONTROLS/A/C
CLUTCH - INSTALLATION)
(3) To du plica t e a h igh -a m bien t t em per a t u r e con di-
t ion (h igh h ea d pr essu r e), r est r ict t h e a ir flow
t h r ou gh t h e con den ser. In st a ll a m a n ifold ga u ge set
t o be cer t a in t h a t t h e disch a r ge pr essu r e does n ot
exceed 2760 kP a (400 psi).
(4) Ch eck t h e r efr iger a n t syst em plu m bin g for
in cor r ect r ou t in g, r u bbin g or in t er fer en ce, wh ich ca n
ca u se u n u su a l n oises. Also ch eck t h e r efr iger a n t lin es
for kin ks or sh a r p ben ds t h a t will r est r ict r efr iger a n t
flow, wh ich ca n ca u se n oises. (Refer t o 24 - H E AT-
ING & AIR CONDITIONING/P LUMBING - CAU-
TION - RE F RIGE RANT
P RE CAUTIONS)
(5) If t h e n oise is fr om open in g a n d closin g of t h e
h igh pr essu r e r elief va lve, r ecla im , eva cu a t e, a n d
r ech a r ge t h e r efr iger a n t syst em . (Refer t o 24 - H E AT-
ING & AIR CONDITIONING/P LUMBING - STAN-
DARD P ROCE DURE - RE F RIGE RANT RE COVE RY)
(Refer t o 24 - H E ATING & AIR CONDITIONING/
P LUMBING - STANDARD P ROCE DURE - RE F RIG-
E RANT SYSTE M E VACUATE ) (Refer
H E ATING & AIR CONDITIONING/P LUMBING -
STANDARD P ROCE DURE - RE F RIGE RANT SYS-
TE M CH ARGE ) If t h e h igh pr essu r e r elief va lve st ill
does n ot sea t pr oper ly, r epla ce t h e a /c com pr essor.
(Refer t o 24 - H E ATING & AIR CONDITIONING/
P LUMBING/A/C COMP RE SSOR - RE MOVAL)
(6) If t h e n oise is fr om liqu id slu ggin g on t h e su c-
t ion lin e, ch eck t h e r efr iger a n t oil level a n d t h e
r efr iger a n t syst em ch a r ge. (Refer t o 24 - H E ATING
& AIR CONDITIONING/P LUMBING/RE F RIGE R-
COMP RE SSOR
H OSE S/LINE S/TUBE S
t o 24
ANT OIL - STANDARD P ROCE DURE ) (Refer t o 24 -
H E ATING & AIR CONDITIONING/P LUMBING -
SP E CIF ICATIONS - CH ARGE CAPACITY).
(7) If t h e n oise con t in u es, r epla ce t h e com pr essor
a n d r epea t St ep 1.
REM OVAL
DENSO 7SBU16C A / C COMPRESSOR
WARNING: Refer to the applicable warnings and
cautions for this system before performing the fol-
lowing operation (Refer to 24 - HEATING & AIR
CONDITIONING/PLUMBING - WARNINGS) and (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
CAUTIONS). Failure to follow the warnings and cau-
tions could result in possible personal injury or
death.
NOTE: The A/C compressor may be removed and
repositioned without disconnecting the refrigerant
lines or discharging the refrigerant system. Dis-
charging is not necessary if servicing the compres-
sor clutch, clutch coil or the engine.
NOTE: If an internal failure of the A/C compressor
has occurred, the receiver/drier must be replaced.
(1) Discon n ect a n d isola t e t h e n ega t ive ba t t er y
ca ble.
(2) Recover t h e r efr iger a n t fr om t h e r efr iger a n t
syst em (Refer t o 24 - H E ATING & AIR CONDITION-
ING/P LUMBING
RE F RIGE RANT SYSTE M RE COVE RY).
(3) Rem ove t h e ser pen t in e dr ive belt (Refer t o 7 -
COOLING/ACCE SSORY
RE MOVAL).
(4) Discon n ect t h e wir e h a r n ess con n ect or fr om t h e
A/C com pr essor clu t ch coil.
(5) Rem ove t h e bolt s t h a t secu r e t h e A/C su ct ion
a n d disch a r ge lin es t o t h e A/C com pr essor.
(6) Discon n ect t h e A/C su ct ion a n d disch a r ge lin es
fr om t h e A/C com pr essor a n d r em ove a n d disca r d t h e
O-r in g sea ls (F ig. 4).
(7) In st a ll plu gs in , or t a pe over t h e open ed r efr ig-
er a n t lin e fit t in gs a n d t h e com pr essor por t s.
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(8) Ra ise t h e veh icle on a h oist .
(9) If equ ipped wit h a n a dd-on r ea r A/C syst em ,
r em ove t h e lower A/C com pr essor a n d posit ion it ou t
of t h e wa y (Refer t o 24 - H E ATING & AIR CONDI-
TIONING/P LUMBING/A/C
RE MOVAL - DE NSO 10S17).
(10) Su ppor t t h e A/C com pr essor a n d r em ove t h e
com pr essor m ou n t in g bolt s.
(11) Rem ove t h e A/C com pr essor fr om t h e en gin e
com pa r t m en t .
PLUMBING 24 - 67
- STANDARD P ROCE DURE
DRIVE /BE LTS-DRIVE
COMP RE SSOR
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