Position L - 1ST Gear, Engine Braking

SECONDARY SHAFT (P3):
The driven final drive gear rotates clockwise. The driving final drive gear and the planetary gear carrier rotate counterclockwise as a unit.

B4 and F3 lock the sun gear so that it cannot rotate in any direction. The planetary gears rotate counterclockwise and at the same time move counterclockwise around the sun gear. The ring gear and the driven intermediate gear rotate counterclockwise.

PRIMARY SHAFT (P1, P2):
The driving intermediate gear and the planetary gear carrier rotate clockwise as a unit. B3 locks the front planetary train (P2) ring gear so that it cannot rotate in any direction, thus providing an engine brake effect. (In "D" and "3", B3 is not applied, so that no engine braking can be obtained, because of F2.)

The outer planetary gears in P2 rotate counterclockwise and at the same time move clockwise around the inner planetary gears, which rotate clockwise.

The sun gear shaft rotates counterclockwise, since B2 and B1 are not applied.

The rear planetary train (P1) ring gear rotates clockwise. C1 couples the rear planetary train ring gear together with the input shaft so that they rotate clockwise as a unit.