L1 Manual First Gear

With the range selector lever in L1 range, the forward clutch is applied. This delivers turbine torque from the input shaft through the forward clutch to the input ring gear in a clockwise direction.

Clockwise rotation of the ring gear causes the output planet pinions to rotate in a clockwise direction, driving the sun gear counterclockwise. In turn, the sun gear turns, causing the reaction carrier planet pinions to turn clockwise. This causes the output ring gear and output shaft to turn in a clockwise direction at a reduction of approximately 2.52 to 1. The reaction of the reaction carrier planet pinions against the output ring gear is taken by either the low and reverse roller clutch or the low and reverse clutch which are grounded to the case.

When the transmission is shifted into L1, the low and reverse clutch is applied below a preset controlled car speed in addition to the forward clutch which is on for all forward ranges. The low and reverse clutch provides overrun braking as it holds the reaction carrier fixed.