#
AUTOMATIC TRANSAXLE POWERTRAIN DESCRIPTION [JA5A-EL]

BME051700000T18

## Outline

• In the powertrain system, the hydraulic pressure transported by the control valve operates the clutch, and brake, and the planetary gear changes the gear ratio according to the driving conditions.

## Structure

• The powertrain system consists of seven pairs of clutches, brake, brake band, two pairs of one-way clutches, and simple type planetary gears.

## Operation

  Note

  • All rotation are viewed from the side cover.

### Component description

Component | Function
--- | ---
Low clutch | • Transmits rotation of low clutch drum to rear internal gear • Operates in 1GR, 2GR, or 3GR position
2-4 brake | • Prevents rotation of front sun gear • Operates in 2GR, 4GR, or 5GR position
High clutch | • Transmits rotation of high clutch drum to front planetary carrier • Operates in 3GR, 4GR, or 5GR position
Reverse clutch | • Transmits rotation of reverse clutch drum to front sun gear • Operates when vehicle is reversing
Reduction brake | • Prevents rotation of direct clutch drum and prevents rotation of reduction sun gear
Low and reverse brake | • Prevents rotation of low and reverse brake hub
Direct clutch | • Transmits rotation of reduction planetary carrier to reduction sun gear • Operates in 5GR position
Low one-way clutch | • Locks clockwise rotation of front planetary carrier
Reduction one-way clutch | • Locks counterclockwise rotation of reduction sun gear

### Gear Position and Operation of Featured Parts

### 1GR (D range)

### 2GR (D, S, L range)

### 2GR (L range HOLD)

### 3GR (D, S range)

### 3GR (S range HOLD, L range)

### 4GR (D, S range)

### 4GR (D range HOLD, S, L range)

### 5GR

### R position

### R position (Reverse inhibition control)