Dodge Sprinter 2006 Manual page 1741

VA
AU T OM AT I C T RAN SM I SSI ON N AG1 - SERV I CE I N FORM AT I ON
DESCRIPTION
1 - TORQUE CONVERTER
2 - OIL PUMP
3 - DRIVESHAFT
4 - MULTI-DISC HOLDING CLUTCH B1
5 - DRIVING CLUTCH K1
6 - DRIVING CLUTCH K2
7 - MULTI-DISC HOLDING CLUTCH B3
8 - DRIVING CLUTCH K3
9 - MULTI-DISC HOLDING CLUTCH B2
10 - OUTPUT SHAFT
Th e NAG1 a u t om a t ic t r a n sm ission (F ig. 1) is a n
elect r on ica lly con t r olled 5-speed t r a n sm ission wit h a
lock-u p clu t ch in t h e t or qu e con ver t er. Th e r a t ios for
t h e gea r st a ges a r e obt a in ed by 3 pla n et a r y gea r set s.
F ift h gea r is design ed a s a n over dr ive wit h a h igh -
speed r a t io.
NAG1 iden t ifies a fa m ily of t r a n sm ission s a n d
m ea n s "N"ew "A"u t om a t ic "G"ea r box, gen er a t ion 1.
Va r iou s m a r ket in g n a m es a r e a ssocia t ed wit h t h e
NAG1 fa m ily of t r a n sm ission s, depen din g on t h e
t r a n sm isson va r ia t ion bein g u sed in a specific veh i-
cle. Som e exa m ples of t h e m a r ket in g n a m es a r e:
W5A300, W5A380, a n d W5A580. Th e m a r ket in g
n a m e ca n be in t er pr et ed a s follows:
• W = A t r a n sm ission u sin g a h ydr a u lic t or qu e
con ver t er.
• 5 = 5 for wa r d gea r s.
• A = Au t om a t ic Tr a n sm ission .
AUTOMA TIC TRANSMISSION NAG1 - SERVICE INFORMA TION 21 - 3
Fig. 1 NAG1 Automatic Transmission
11 - PARKING LOCK GEAR
12 - INTERMEDIATE SHAFT
13 - FREEWHEEL F2
14 - REAR PLANETARY GEAR SET
15 - CENTER PLANETARY GEAR SET
16 - ELECTROHYDRAULIC CONTROL UNIT
17 - FRONT PLANETARY GEAR SET
18 - FREEWHEEL F1
19 - STATOR SHAFT
20 - TORQUE CONVERTER LOCK-UP CLUTCH
t on m et er s.
Th e gea r s a r e sh ift ed by m ea n s of a n a ppr opr ia t e
com bin a t ion of t h r ee m u lt i-disc h oldin g clu t ch es,
t h r ee m u lt i-disc dr ivin g clu t ch es, a n d t wo fr eewh eel-
in g clu t ch es.
a da pt a t ion of pr essu r es t o t h e r espect ive oper a t in g
con dit ion s a n d t o t h e en gin e ou t pu t du r in g t h e sh ift
ph a se wh ich r esu lt s in a sign ifica n t im pr ovem en t in
sh ift qu a lit y.
a da pt a t ion t o va r iou s veh icle a n d en gin es.
t r on ic con t r ol offer s t h e followin g a dva n t a ges:
• 580 = Ma xim u m in pu t t or qu e ca pa cit y in New-
Th e gea r s a r e a ct u a t ed elect r on ica lly/h ydr a u lica lly.
E lect r on ic t r a n sm ission con t r ol en a bles pr ecise
F u r t h er m or e, it offer s t h e a dva n t a ge of a flexible
Ba sica lly, t h e a u t om a t ic t r a n sm ission wit h elec-
• Redu ces fu el con su m pt ion .
• Im pr oved sh ift com for t .
• Mor e fa vou r a ble st ep-u p t h r ou gh t h e five gea r s.