Mazda CX-9 2007 Service Highlights page 250

AUTOMATIC TRANSAXLE [AW6A-EL, AW6AX-EL]
Engine brake
• When the engine brake is operating, driving force is transmitted from the tires.
5GR
C2 CLUTCH B2 BRAKE
Power transmission pathway
[Operating components: C2 clutch, C3 clutch]
Planetary gear unit
1. Input shaft (rotates clockwise) [same revolutions as torque converter's turbine runner]
2. Front planetary ring gear (rotates clockwise) [same revolution as the input shaft]
3. Front planetary pinion gear (rotates clockwise on its axis, orbits clockwise)
[because the front planetary sun gear is locked by the oil pump, it is pressed against the front planetary ring
gear and orbits the sun gear while rotating on its axis (because the front planetary ring gear has internal gears,
the rotational direction does not change)]
4. Front planetary carrier (rotates clockwise)
[reduction: same revolution as the front planetary pinion gear orbit revolution]
5. C3 clutch (rotates clockwise) [connects the front planetary carrier and the rear planetary middle sun gear]
6. Rear planetary middle sun gear (rotates clockwise)
[same revolution as C3 clutch (decelerates by the front planetary gear, so the revolutions are slower than the
input shaft)]
7. Intermediate shaft (rotates clockwise) [same revolution as the input shaft]
8. C2 clutch (rotates clockwise) [same revolution as the intermediate shaft]
9. Rear planetary carrier (rotates clockwise) [same revolutions as intermediate shaft]
05-17–14
ONE-WAY
COUNTER DRIVE GEAR
CLUTCH
B1 BRAKE
COUNTER GEAR
Front
Rear
C1 CLUTCH
C3 CLUTCH
RING GEAR
(DIFFERENTIAL)
Input, Locked, Output
Input: Ring gear
Locked: Sun gear
Output: Carrier
Input: Carrier, Middle Sun gear
Locked: -
Output: Ring gear
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