5717 Clutches and brakes

Front clutch piston (FCP) (Fig. 5.24) This is an annular shaped piston which directs a clamping load to a multiplate clutch via a diaphragm type spring when line pressure is introduced behind the piston. The engagement of the clutch couples the output shaft from the torque converter turbine to the forward annular gear ring. The forward clutch is applied in all forward drive gear ranges.

First and reverse brake piston (1 + R)CP (Fig. 5.24) Introducing line pressure to the first and reverse clutch piston cylinder engages the multiplate brake which locks the reverse planetary carrier to the transmission casing. The first and reverse brake is applied only in first and reverse range.

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