Component Description

Name (abbreviation)

FUNCTION

Torque converter

Amplifies the drive force from the engine and transmits it to the transmission input shaft.

Oil pump

Driven by the engine, this component supplies oil to the torque converter, control valve assembly, and lubricated parts.

4-point gear

Transmits drive force from the transmission mechanism to the output gear, idler gear, reduction gear, and final gear.

Low clutch (L/C)

Connects the rear sun gear and input shaft

High clutch (H/C)

Connects the front carrier and input shaft

Reverse clutch (R/C)

Connects the front sun gear and input shaft

Low & reverse brake (L&R/B)

Fastens the rear internal gear and front carrier in place.

2-4 brake (2-4/B)

Brake band that fastens the front sun gear in place.

One-way clutch (OWC)

This clutch prevents reverse turning of the front carrier and rear internal gear. It operates not hydraulically but mechanically.

Planetary gear

Transmits drive force to various positions by engagement and release of the clutches and bands.