Jeep Grand Cherokee WK. Manual — part 1473
FIFTH GEAR POWERFLOW
1 - TORQUE CONVERTER LOCK-UP CLUTCH
14 - CENTER PLANETARY CARRIER
2 - TORQUE CONVERTER TURBINE
15 - REAR PLANETARY CARRIER
3 - TORQUE CONVERTER IMPELLER
16 - TORQUE CONVERTER STATOR
4 - HOLDING CLUTCH B1
17 - FRONT PLANETARY PINION GEARS
5 - HOLDING CLUTCH B3
18 - CENTER PLANETARY PINION GEARS
6 - HOLDING CLUTCH B2
19 - REAR PLANETARY PINION GEARS
7 - DRIVING CLUTCH K1
20 - FREEWHEELING CLUTCH F1
8 - FRONT PLANETARY ANNULUS GEAR
21 - FRONT PLANETARY SUN GEAR
9 - DRIVING CLUTCH K2
22 - CENTER PLANETARY SUN GEAR
10 - CENTER PLANETARY ANNULUS GEAR
23 - REAR PLANETARY SUN GEAR
11 - REAR PLANETARY ANNULUS GEAR
24 - FREEWHEELING CLUTCH F2
12 - DRIVING CLUTCH K3
25 - INPUT SHAFT
13 - FRONT PLANETARY CARRIER
26 - OUTPUT SHAFT
A - ENGINE SPEED
D - SECOND GEAR RATIO
B - TRANSMISSION INPUT SPEED
E - THIRD GEAR RATIO
C - FIRST GEAR RATIO
F - FIXED PARTS
21 - 702
AUTOMATIC TRANSMISSION - NAG1 - SERVICE INFORMATION
WK
Torque from the torque converter is increased via the input shaft (25) and all three planetary gearsets and trans-
ferred to the output shaft (26).
Front Planetary Gear Set
The annulus gear (8) is driven by the input shaft (25). The sun gear (21) is held against the housing by the locked
freewheel F1 (20) during acceleration and via the engaged multiple-disc holding clutch B1 (4) during deceleration.
The planetary pinion gears (17) turn on the fixed sun gear (21) and increase the torque from the annulus gear (8)
to the planetary carrier (13). The planetary carrier (13) moves at a reduced speed in the running direction of the
engine.
Rear Planetary Gear Set
The multiple-disc clutch K2 (9) is engaged and transfers the input speed of the input shaft (25) to the planetary
carrier (15) via the annulus gear (10). The annulus gear (11) turns at a reduced speed due to the mechanical con-
nection with the front planetary carrier (13). The planetary pinion gears (19) turn between the annulus gear (11) and
the sun gear (23). The sun gear (23) moves at an increased speed in the running direction of the engine.
1 - TORQUE CONVERTER LOCK-UP CLUTCH
14 - CENTER PLANETARY CARRIER
2 - TORQUE CONVERTER TURBINE
15 - REAR PLANETARY CARRIER
3 - TORQUE CONVERTER IMPELLER
16 - TORQUE CONVERTER STATOR
4 - HOLDING CLUTCH B1
17 - FRONT PLANETARY PINION GEARS
5 - HOLDING CLUTCH B3
18 - CENTER PLANETARY PINION GEARS
6 - HOLDING CLUTCH B2
19 - REAR PLANETARY PINION GEARS
7 - DRIVING CLUTCH K1
20 - FREEWHEELING CLUTCH F1
8 - FRONT PLANETARY ANNULUS GEAR
21 - FRONT PLANETARY SUN GEAR
9 - DRIVING CLUTCH K2
22 - CENTER PLANETARY SUN GEAR
10 - CENTER PLANETARY ANNULUS GEAR
23 - REAR PLANETARY SUN GEAR
11 - REAR PLANETARY ANNULUS GEAR
24 - FREEWHEELING CLUTCH F2
12 - DRIVING CLUTCH K3
25 - INPUT SHAFT
13 - FRONT PLANETARY CARRIER
26 - OUTPUT SHAFT
A - ENGINE SPEED
D - SECOND GEAR RATIO
B - TRANSMISSION INPUT SPEED
E - THIRD GEAR RATIO
C - FIRST GEAR RATIO
F - FIXED PARTS
WK
AUTOMATIC TRANSMISSION - NAG1 - SERVICE INFORMATION
21 - 703
Center Planetary Gear Set
The annulus gear (10) turns at the input speed as a result of the engaged multiple-disc clutch K2 (9). The multiple-
disc clutch K3 (12) transfers an increased speed to the sun gear (22) due to the connection with the sun gear (23).
The planetary pinion gears (18) turn between the annulus gear (10) and the sun gear (22). The speed of the plan-
etary carrier (14) and the output shaft connected to the planetary carrier (5) lies between that of the annulus gear
(10) and the sun gear (22). This provides a step-up ratio.
REVERSE GEAR POWERFLOW
1 - TORQUE CONVERTER LOCK-UP CLUTCH
14 - CENTER PLANETARY CARRIER
2 - TORQUE CONVERTER TURBINE
15 - REAR PLANETARY CARRIER
3 - TORQUE CONVERTER IMPELLER
16 - TORQUE CONVERTER STATOR
4 - HOLDING CLUTCH B1
17 - FRONT PLANETARY PINION GEARS
5 - HOLDING CLUTCH B3
18 - CENTER PLANETARY PINION GEARS
6 - HOLDING CLUTCH B2
19 - REAR PLANETARY PINION GEARS
7 - DRIVING CLUTCH K1
20 - FREEWHEELING CLUTCH F1
8 - FRONT PLANETARY ANNULUS GEAR
21 - FRONT PLANETARY SUN GEAR
9 - DRIVING CLUTCH K2
22 - CENTER PLANETARY SUN GEAR
10 - CENTER PLANETARY ANNULUS GEAR
23 - REAR PLANETARY SUN GEAR
11 - REAR PLANETARY ANNULUS GEAR
24 - FREEWHEELING CLUTCH F2
12 - DRIVING CLUTCH K3
25 - INPUT SHAFT
13 - FRONT PLANETARY CARRIER
26 - OUTPUT SHAFT
A - ENGINE SPEED
D - SECOND GEAR RATIO
B - TRANSMISSION INPUT SPEED
E - THIRD GEAR RATIO
C - FIRST GEAR RATIO
F - FIXED PARTS
21 - 704
AUTOMATIC TRANSMISSION - NAG1 - SERVICE INFORMATION
WK
Torque from the torque converter is increased via the input shaft (25) and all three planetary gearsets and trans-
ferred with reversed direction of rotation to the output shaft (26).
Front Planetary Gear Set
The annulus gear (8) is driven by the input shaft (25). The sun gear (21) is held against the housing by the locked
freewheel F1 (20) during acceleration and via the engaged multiple-disc holding clutch B1 (4) during deceleration.
The planetary pinion gears (17) turn on the fixed sun gear (21) and increase the torque from the annulus gear (8)
to the planetary carrier (13). The planetary carrier (13) moves at a reduced speed in the running direction of the
engine.
Rear Planetary Gear Set
The planetary carrier (15) is held against the housing by the engaged multiple-disc holding clutch B3 (5). The annu-
lus gear (11) turns at a reduced speed due to the mechanical connection to the front planetary carrier (13). The
planetary gears (19) turn between the annulus gear (11) and the sun gear (23). The direction is reversed by the held
planetary carrier (15) so that the sun gear (23) turns in the opposite direction to the running direction of the engine.
1 - TORQUE CONVERTER LOCK-UP CLUTCH
14 - CENTER PLANETARY CARRIER
2 - TORQUE CONVERTER TURBINE
15 - REAR PLANETARY CARRIER
3 - TORQUE CONVERTER IMPELLER
16 - TORQUE CONVERTER STATOR
4 - HOLDING CLUTCH B1
17 - FRONT PLANETARY PINION GEARS
5 - HOLDING CLUTCH B3
18 - CENTER PLANETARY PINION GEARS
6 - HOLDING CLUTCH B2
19 - REAR PLANETARY PINION GEARS
7 - DRIVING CLUTCH K1
20 - FREEWHEELING CLUTCH F1
8 - FRONT PLANETARY ANNULUS GEAR
21 - FRONT PLANETARY SUN GEAR
9 - DRIVING CLUTCH K2
22 - CENTER PLANETARY SUN GEAR
10 - CENTER PLANETARY ANNULUS GEAR
23 - REAR PLANETARY SUN GEAR
11 - REAR PLANETARY ANNULUS GEAR
24 - FREEWHEELING CLUTCH F2
12 - DRIVING CLUTCH K3
25 - INPUT SHAFT
13 - FRONT PLANETARY CARRIER
26 - OUTPUT SHAFT
A - ENGINE SPEED
D - SECOND GEAR RATIO
B - TRANSMISSION INPUT SPEED
E - THIRD GEAR RATIO
C - FIRST GEAR RATIO
F - FIXED PARTS
WK
AUTOMATIC TRANSMISSION - NAG1 - SERVICE INFORMATION
21 - 705
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