Mazda 2007 CX-9, Service Highlights

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AUTOMATIC TRANSAXLE [AW6A-EL, AW6AX-EL]
05-17–14
Engine brake
•
When the engine brake is operating, driving force is transmitted from the tires.
5GR
Power transmission pathway
[Operating components: C2 clutch, C3 clutch]
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]
Planetary gear unit Input, Locked, Output
Front
Input: Ring gear
Locked: Sun gear
Output: Carrier
Rear
Input: Carrier, Middle Sun gear
Locked: -
Output: Ring gear
C3 CLUTCH
C1 CLUTCH
B1 BRAKE
C2 CLUTCH B2 BRAKE
ONE-WAY
CLUTCH
COUNTER GEAR
RING GEAR
(DIFFERENTIAL)
COUNTER DRIVE GEAR
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