Dodge Sprinter 2006 Manual page 878

8F - 18 CHARGING SYSTEM
SPECIAL TOOLS
GENERATOR DECOUPLER TOOL #8433
GENERATOR DECOUPLER TOOL #8823
GEN ERAT OR
DESCRIPTION
Th e gen er a t or is belt -dr iven by t h e en gin e u sin g a
ser pen t in e-t ype dr ive belt . It is ser viced on ly a s a
com plet e a ssem bly. If t h e gen er a t or fa ils for a n y r ea -
son , t h e en t ir e a ssem bly m u st be r epla ced.
On cer t a in en gin es, t h e decou pler pu lley m a y be
r epla ced sepa r a t ely.
OPERA TION
As t h e en er gized r ot or begin s t o r ot a t e wit h in t h e
gen er a t or, t h e spin n in g m a gn et ic field in du ces a cu r-
r en t in t o t h e win din gs of t h e st a t or coil. On ce t h e
gen er a t or begin s pr odu cin g su fficien t cu r r en t , it a lso
pr ovides t h e cu r r en t n eeded t o en er gize t h e r ot or.
Th e st a t or win din g con n ect ion s deliver t h e in du ced
AC cu r r en t t o 3 posit ive a n d 3 n ega t ive diodes for
r ect ifica t ion . F r om t h e diodes, r ect ified DC cu r r en t is
deliver ed t o t h e veh icle elect r ica l syst em t h r ou gh t h e
gen er a t or ba t t er y t er m in a l.
Alt h ou gh t h e gen er a t or s a ppea r t h e sa m e ext er-
n a lly, differ en t gen er a t or s wit h differ en t ou t pu t r a t -
in gs a r e u sed on t h is veh icle. Be cer t a in t h a t t h e
r epla cem en t gen er a t or h a s t h e sa m e ou t pu t r a t in g
a n d pa r t n u m ber a s t h e or igin a l u n it . Refer t o Spec-
ifica t ion s a n d see Gen er a t or Ra t in gs for a m per a ge
r a t in gs a n d pa r t n u m ber s.
Noise em it t in g fr om t h e gen er a t or m a y be ca u sed
by: wor n , loose or defect ive bea r in gs; a loose or defec-
t ive dr ive pu lley (decou pler pu lley); in cor r ect , wor n ,
da m a ged or m isa dju st ed fa n dr ive belt ; loose m ou n t -
in g bolt s; a m isa lign ed dr ive pu lley or a defect ive st a -
t or or diode.
An in st r u m en t pa n el m ou n t ed, ba t t er y ch a r ge in di-
ca t or la m p is u sed. Wh en t h e key is in t h e on posi-
t ion , t h e la m p will be illu m in a t ed. Th is is don e a s a
bu lb ch eck. If t h is la m p r em a in s illu m in a t ed wh ile
t h e en gin e is r u n n in g, a Dia gn ost ic Tr ou ble Code
(DTC) h a s been det ect ed for t h e ch a r gin g syst em .
REMOVAL
CAUTION: DISCONNECT NEGATIVE CABLE FROM
BATTERY BEFORE REMOVING BATTERY OUTPUT
WIRE FROM GENERATOR. FAILURE TO DO SO
CAN RESULT IN INJURY.
CAUTION: Never force a belt over a pulley rim
using a screwdriver. The synthetic fiber of the belt
can be damaged.
CAUTION: When installing a serpentine accessory
drive belt, the belt MUST be routed correctly. The
water pump will be rotating in the wrong direction if
the belt is installed incorrectly, causing the engine
to overheat. Refer to belt routing label in engine
compartment, or refer to Belt Schematics in Cooling
System.
(1) Discon n ect a n d isola t e n ega t ive ba t t er y ca ble.
(2) Rem ove gen er a t or dr ive belt . Refer t o Coolin g
Syst em for pr ocedu r e.
(3) Ra ise a n d su ppor t veh icle.
(4) Rem ove pr ot ect ive pla st ic cover fr om B+ st u d
a t t op of gen er a t or.
(5) Rem ove n u t secu r in g ba t t er y ou t pu t ca ble t o
B+ t er m in a l a t t op of gen er a t or.
(6) Un plu g field t er m in a l con n ect or a t r ea r of gen -
er a t or.
(7) Rem ove 4 gen er a t or m ou n t in g bolt s (Tor x-st yle
#12 bit ) (F ig. 1).
(8) Rem ove gen er a t or fr om lower side of veh icle.
VA