Power 4th Gear

The input shaft rotates clockwise and is connected to the rear planetary gear train's (P1) ring gear by clutch C1. The result is that the ring gear also rotates clockwise.

Clutch C2 connects the input shaft and the sun wheel so that they rotate clockwise as a unit.

Planetary gear trains P1 and P2 rotate clockwise as a unit.

The planet cater and the driving intermediate gear rotate clockwise as a unit at the same speed as the input shaft.

The lower planetary gear train's (P3) ring gear rotates counter-clockwise.

Clutch C3 connects the planet carrier and the sun Wheel.

The lower planetary gear train's planet carrier, ring gear, sun wheel and final gear rotate counter-clockwise as a unit.

The planet cater and the final gear rotate counter-clockwise as a unit at a higher speed than in 3rd gear.