Planetary Geartrain - Operation

OPERATION

REACTION PLANETARY GEAR SET

The reaction planetary carrier and reverse sun gear are a single component which is held by the 2C clutch when required. The sun gear is retained on the reaction carrier hub by a hidden snap ring and can not be removed. The reaction sun gear is a stand alone component that can be driven by the reverse clutch or held by the 4C clutch. The reaction annulus is welded to the reverse planetary carrier.

REVERSE PLANETARY GEAR SET

The reverse planetary gear set is the middle of the three planetary sets. The reverse planetary carrier can be driven by the overdrive clutch as required. The reverse planetary carrier is welded to the reaction annulus gear and splined to the input annulus gear, which can be held by the low/reverse clutch. The reverse annulus gear , input planetary carrier, and output shaft are all one piece. The reverse annulus gear is retained on the input carrier flange by a hidden snap ring and can not be disassembled.

INPUT PLANETARY GEAR SET

The input sun gear of the input planetary gear set is driven by the underdrive clutch. The number 11 thrust bearing is captive underneath the pinion gears and therefore cannot be removed.