Mazda Automatic Transaxle JA5A-EL. Manual — part 16

AUTOMATIC TRANSAXLE

K–45

K

Throttle Accumulator A, B, and C

Outline

• The throttle accumulator has the role of absorbing the pulsation from the throttle pressure.

Operation

• The accumulator piston is pushed to the right by spring force. Conversely, throttle pressure is applied to the

right side of the piston and pushes the piston to the left side. The accumulator piston is maintained by the

balance of the throttle pressure and the spring force. When the throttle pressure is high, the piston moves to

the left and absorbs the pressure. Conversely, when the pressure is low, the piston moves to the right and

compensates for the pressure insufficiency.

End Of Sie

AMU0517A554

AMU0517A555

K–46

AUTOMATIC TRANSAXLE

POWER TRANSMISSION/HYDRAULIC MECHANISM DESCRIPTION

AME561401030A07

Note

• All rotation is described as viewed from the side cover

P/N Position

Outline

• Engine starting is possible only when in P and N position.

• The output shaft of the transaxle is mechanically locked in P position.

AME5714A006

AUTOMATIC TRANSAXLE

K–47

K

Operation

• The driving force of the input shaft is transmitted to the reverse and high clutch drum, and rear sun gear.

• Neither the reverse clutch nor high clutch is engaged, so the driving force of the reverse and high clutch drum

is not transmitted.

• The driving force of the rear sun gear is transmitted to the rear pinion and rear internal gear. However, the rear

internal gear only rotates freely, and the driving force is not transmitted because the low clutch is not engaged.

(These descriptions are applicable to both P and N positions.)

• When P position is selected, the parking rod operates due to the linkage structure with the selector lever, and

the parking gear is mechanically locked by the parking pawl, resulting in the final gear being fixed.

K–48

AUTOMATIC TRANSAXLE

AMU0517A556