Mazda 2007 CX-9, Service Highlights

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AUTOMATIC TRANSAXLE [AW6A-EL, AW6AX-EL]
05-17–17
05-17
Power transmission pathway
[Operating components: C3 clutch, B2 brake]
1. Input shaft (rotates clockwise) [same revolution as the 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 revolutions as the C3 clutch (rotates slower than the input shaft)]
7. B2 brake [locks the rear planetary carrier]
8. Rear planetary long pinion gear (rotates counterclockwise)
9. Rear planetary ring gear (rotates counterclockwise)
[the rear planetary ring gear is rotated by the rear planetary long pinion gear (because the rear planetary ring
gear has internal gears, the rotational direction does not change)]
10. Counter drive gear (rotates counterclockwise)
[because the rear planetary ring gear is installed on the counter drive gear, the rotational direction and
revolution are the same as the rear planetary ring gear]
11. Counter gear (rotates clockwise)
12. Differential ring gear (rotates counterclockwise)
Engine brake
•
When the engine brake is operating, driving force is transmitted from the tires.
End Of Sie
Planetary gear unit Input, Locked, Output
Front
Input: Ring gear
Locked: Sun gear
Output: Carrier
Rear
Input: Middle Sun gear
Locked: Carrier
Output: Ring gear
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