Position L - 1st gear, engine braking

WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Position L - 1st Gear, Engine Braking

Courtesy of VOLVO CARS OF NORTH AMERICA.

Secondary shaft (P3):

The driven final drive gear rotates clockwise. The driving final drive gear and the planetary gear carrier rotate counter-clockwise as a unit.

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

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, providing an engine brake. (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 counter-clockwise and at the same time move clockwise around the inner planetary gears, which rotate clockwise.

The sun gear shaft rotates counter-clockwise, as B2 and B1 are not applied.

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