Clutch/Brake Functions of Automatic Transmission
PARTS FUNCTION DESCRIPTION
| Part Name | Function |
|---|---|
| Forward clutch | Meshes input shaft and intermediate shaft. |
| Direct clutch | Meshes input shaft and MD planetary carrier. |
| Reverse clutch | Meshes input shaft and FR sun gear. |
| No.1 brake | Fixes FR planetary carrier. |
| No.2 brake | Fixes FR and MD ring gear. |
| 2nd brake | Fixes outer race of one-way No.2 clutch, to prevent FR sun gear from turning counterclockwise (reverse direction of engine input rotation direction). |
| 1st and reverse brake | Fixes RR ring gear. |
| One-way No.1 | Prevent FR planetary carrier from turning counterclockwise. |
| One-way No.2 | Prevent FR sun gear from turning counterclockwise only when 2nd brake is at work. |
| One-way No.3 | Prevent RR ring gear from turning counterclockwise. |