Technician Handbook ! 302 Manual Transmissions & Transaxles Clutch Cover Assembly The clutch cover assembly is bolted to the flywheel and provides the pressure needed to hold the clutch disc to the flywheel for proper power transmission. It is important that the assembly be well balanced and able to radiate the heat generated when the clutch disc is engaged. Toyota uses two types of clutch cover assemblies: • Diaphragm spring • Diaphragm Spring Turnover (DST) Diaphragm Spring The diaphragm spring is a round, conical shaped spring that provides the clamping force against the pressure plate. Pivot rings are installed on both sides of the diaphragm spring.
They serve as a pivot point when the release bearing is forced against the diaphragm spring. The pivot stud connects the diaphragm spring to the clutch cover. The retracting springs connect the diaphragm spring and the pressure plate. The straps connect the pressure plate to the clutch cover and do not allow the pressure plate to move out of position. 12 Technical Training