Principles of Operation

Manual Transaxle and Clutch

Principles of Operation

The function of the transaxle is to move the vehicle from a rest position to motion. The transaxle uses gears to adapt the torque to the demands of load and road conditions. It matches engine power to vehicle needs. This power is delivered from the engine's flywheel to the transaxle. The power is transmitted through a driver-operated clutch, which allows for engagement and disengagement of the engine to the transaxle.

The transaxle input shaft receives the power when the clutch is engaged. The transaxle then uses a system of gears to change the speed and torque relationship between the engine crankshaft and the transaxle differential.

The clutch master cylinder transmits fluid pressure to the clutch slave cylinder, which in turn moves the clutch release hub and bearing. The clutch hydraulic system uses brake fluid and has a separate reservoir. The clutch is a single-plate, dry-friction disc with a diaphragm-style spring pressure plate. The clutch disc has frictional material where it contacts the flywheel and the clutch pressure plate. The clutch pressure plate applies pressure to the clutch disc, holding it tightly against the surface of the flywheel.

In the engaged position, the clutch pressure plate diaphragm spring holds the clutch pressure plate against the clutch disc, so that the engine torque is transmitted to the input shaft. When the clutch is depressed, movement is transmitted through the clutch hydraulic system.