|
|
assembly (Fig. 21) and (Fig. 22). The input clutch • Input shaft • Input hub • Clutch retainer • Underdrive piston • Overdrive/reverse piston • Overdrive hub • Underdrive hub OPERATION The three input clutches are responsible for driving different components of the planetary geartrain. UNDERDRIVE CLUTCH The underdrive clutch is hydraulically applied in first, second, and third (direct) gears by pressurized OVERDRIVE CLUTCH The overdrive clutch is hydraulically applied in third (direct) and overdrive gears by pressurized fluid against the overdrive/reverse piston. When the over- REVERSE CLUTCH The reverse clutch is hydraulically applied in reverse gear by pressurized fluid against the over- HOLDING CLUTCHES DESCRIPTION Three hydraulically applied multi-disc clutches are used to hold planetary geartrain components station- Fig. 21 Input Clutch Assembly-Part 1 21 - 342 45RFE AUTOMATIC TRANSMISSION DN DESCRIPTION AND OPERATION (Continued) |