Dodge Sprinter 2006 Manual page 1753

VA
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
Speed a n d t or qu e a r e n ot con ver t ed by t h e dir ect
gea r r a t io of t h e 4t h gea r. P ower is t r a n sfer r ed fr om
t h e in pu t sh a ft (25) t o t h e ou t pu t sh a ft (26) via t h r ee
locked pla n et a r y gea r set s. (F ig. 8) (F ig. 9)
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 locked 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
t h e in pu t sh a ft (25).
Rear Planetary Gear Set
Th e m u lt iple-disc clu t ch K2 (9) is en ga ged a n d
t r a n sfer s t h e in pu t speed of t h e in pu t sh a ft (25) t o
t h e pla n et a r y ca r r ier (15) via t h e a n n u lu s gea r (10).
Th e a n n u lu s gea r (11) t u r n s in t h e sa m e wa y a s t h e
AUTOMA TIC TRANSMISSION NAG1 - SERVICE INFORMA TION 21 - 15
Fig. 9 Fourth 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
B - TRANSMISSION INPUT SPEED
pla n et a r y ca r r ier (15) du e t o t h e m ech a n ica l con n ec-
t ion wit h t h e locked fr on t pla n et a r y gea r set . Th e
pla n et a r y gea r set is t h er efor e locked a n d t u r n s a s a
closed u n it .
Center Planetary Gear Set
a r esu lt of t h e en ga ged m u lt iple-disc clu t ch K2 (9).
Th e m u lt iple-disc clu t ch K3 (12) con n ect s t h e su n
gea r s (22) a n d (23) of t h e r ea r a n d cen t er pla n et a r y
gea r set . Th e pla n et a r y gea r set is locked by t h e sa m e
speeds of t h e a n n u lu s gea r (10) a n d t h e su n gea r (22)
a n d it t u r n s a s a closed u n it .
Th e a n n u lu s gea r (10) t u r n s a t t h e in pu t speed a s