Dodge Sprinter 2006 Manual page 1758

21 - 20 AUTOMA TIC TRANSMISSION NAG1 - SERVICE INFORMA TION
1 - TORQUE CONVERTER LOCK-UP CLUTCH
2 - TORQUE CONVERTER TURBINE
3 - TORQUE CONVERTER IMPELLER
4 - HOLDING CLUTCH B1
5 - HOLDING CLUTCH B3
6 - HOLDING CLUTCH B2
7 - DRIVING CLUTCH K1
8 - FRONT PLANETARY ANNULUS GEAR
9 - DRIVING CLUTCH K2
10 - CENTER PLANETARY ANNULUS GEAR
11 - REAR PLANETARY ANNULUS GEAR
12 - DRIVING CLUTCH K3
13 - FRONT PLANETARY CARRIER
A - ENGINE SPEED
B - TRANSMISSION INPUT SPEED
C - FIRST GEAR RATIO
Tor qu e fr om t h e t or qu e con ver t er is in cr ea sed via
t h e in pu t sh a ft (25) a n d a ll t h r ee pla n et a r y gea r set s
a n d t r a n sfer r ed wit h r ever sed dir ect ion of r ot a t ion t o
t h e ou t pu t sh a ft (26). (F ig. 12) (F ig. 13)
Front Planetary Gear Set
Th e a n n u lu s gea r (8) is dr iven by t h e in pu t sh a ft
(25). Th e su n gea r (21) is h eld a ga in st t h e h ou sin g by
t h e locked fr eewh eel F 1 (20) du r in g a cceler a t ion a n d
via t h e en ga ged m u lt iple-disc h oldin g clu t ch B1 (4)
du r in g deceler a t ion . Th e pla n et a r y pin ion gea r s (17)
t u r n on t h e fixed su n gea r (21) a n d in cr ea se t h e
t or qu e fr om t h e a n n u lu s gea r (8) t o t h e pla n et a r y
ca r r ier (13). Th e pla n et a r y ca r r ier (13) m oves a t a
r edu ced speed in t h e r u n n in g dir ect ion of t h e en gin e.
Fig. 13 Reverse Gear Powerflow
14 - CENTER PLANETARY CARRIER
15 - REAR PLANETARY CARRIER
16 - TORQUE CONVERTER STATOR
17 - FRONT PLANETARY PINION GEARS
18 - CENTER PLANETARY PINION GEARS
19 - REAR PLANETARY PINION GEARS
20 - FREEWHEELING CLUTCH F1
21 - FRONT PLANETARY SUN GEAR
22 - CENTER PLANETARY SUN GEAR
23 - REAR PLANETARY SUN GEAR
24 - FREEWHEELING CLUTCH F2
25 - INPUT SHAFT
26 - OUTPUT SHAFT
D - SECOND GEAR RATIO
E - THIRD GEAR RATIO
F - FIXED PARTS
Rear Planetary Gear Set
Th e pla n et a r y ca r r ier (15) is h eld a ga in st t h e h ou s-
in g by t h e en ga ged m u lt iple-disc h oldin g clu t ch B3
(5). Th e a n n u lu s gea r (11) t u r n s a t a r edu ced speed
du e t o t h e m ech a n ica l con n ect ion t o t h e fr on t pla n e-
t a r y ca r r ier (13). Th e pla n et a r y gea r s (19) t u r n
bet ween t h e a n n u lu s gea r (11) a n d t h e su n gea r (23).
Th e dir ect ion is r ever sed by t h e h eld pla n et a r y ca r-
r ier (15) so t h a t t h e su n gea r (23) t u r n s in t h e oppo-
sit e dir ect ion t o t h e r u n n in g dir ect ion of t h e en gin e.
Center Planetary Gear Set
Th e a n n u lu s gea r (10) is h eld a ga in st t h e h ou sin g
by t h e m u lt iple-disc h oldin g clu t ch B3 (5) via t h e
m ech a n ica l con n ect ion t o t h e pla n et a r y ca r r ier (15).
Th e su n gea r (22) t u r n s ba ckwa r ds du e t o t h e
VA