Dodge Sprinter 2006 Manual page 1748

21 - 10 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 t h e cen t er a n d r ea r pla n e-
t a r y gea r set a n d t r a n sfer r ed t o t h e ou t pu t sh a ft (26).
(F ig. 4) (F ig. 5)
Front Planetary Gear Set
Th e pla n et a r y ca r r ier (13) a n d su n gea r (21) a r e
con n ect ed via t h e en ga ged m u lt iple-disc clu t ch K1
(7). Th e pla n et a r y gea r set is t h er efor e blocked a n d
t u r n s a s a closed u n it a t t h e in pu t speed du e t o t h e
m ech a n ica l con n ect ion of t h e a n n u lu s gea r (8) a n d
in pu t sh a ft .
Rear Planetary Gear Set
Th e a n n u lu s gea r (11) t u r n s a t t h e in pu t speed a s
a r esu lt of t h e m ech a n ica l con n ect ion t o t h e fr on t
pla n et a r y ca r r ier (13). Th e su n gea r (23) is h eld
Fig. 5 Second 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 - FIXED PARTS
a ga in st t h e h ou sin g by t h e en ga ged m u lt iple-disc
h oldin g clu t ch B2 (6), by t h e locked fr eewh eel F 2 (24)
du r in g a cceler a t ion a n d by t h e en ga ged m u lt iple-disc
clu t ch K3 (12) du r in g deceler a t ion . Th e pla n et a r y
pin ion gea r s (19) t u r n on t h e fixed su n gea r (23) 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 (11) t o t h e
pla n et a r y ca r r ier (15). Th e pla n et a r y ca r r ier (15)
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.
Center Planetary Gear Set
Th e a n n u lu s gea r (10) is dr iven a t t h e sa m e speed
a s t h e r ea r pla n et a r y ca r r ier (15) a s a r esu lt of a
m ech a n ica l con n ect ion . Th e su n gea r (22) 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 B2 (6). Th e pla n et a r y pin ion gea r s (18) t u r n
on t h e fixed su n gea r (22) a n d in cr ea se t h e t or qu e
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