CONSTRUCTION
The forward/reverse switching unit consists of a planetary gear, a forward clutch and a reverse brake.
The forward clutch, which operates during forward movement, connects the input shaft to the sun gear.
The reverse brake, which operates during reverse movement, keeps the planetary carrier stationary.
| *1 | Reverse Brake | *2 | Pinion Gear |
| *3 | Sun Gear | *4 | Planetary Carrier |
| *5 | Ring Gear | *6 | Forward Clutch |
| *a | Forward/Reverse Switching Unit | - | - |
OPERATION
Forward Driving
When driving forward, the forward clutch is engaged, causing engine torque to be input from the input shaft to the sun gear, and output through the primary pulley.
| *1 | Planetary Carrier | *2 | Ring Gear |
| *3 | Pinion Gear | *4 | Sun Gear |
| *5 | Forward Clutch | *6 | Reverse Brake |
| *a | Output | *b | Input |
Reverse Driving
When driving in reverse, engine torque is input to the ring gear. Then, the engine torque is input to the sun gear via the Pinion Gear (which is held by the reverse brake). Consequently, the gear and primary pulley rotation is reversed.
| *1 | Planetary Carrier | *2 | Ring Gear |
| *3 | Pinion Gear | *4 | Sun Gear |
| *5 | Forward Clutch | *6 | Reverse Brake |
| *a | Output | *b | Input |