Mazda Automatic Transaxle JA5A-EL. Manual — part 23

AUTOMATIC TRANSAXLE

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AUTOMATIC TRANSAXLE

Fifth Gear

Outline

• Shift solenoids A and C is ON, and only B is OFF in fifth gear.

• As the shift valve A moves to the upper side, operation pressure of the reduction brake is drained, and

operation pressure is supplied to the direct clutch.

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AUTOMATIC TRANSAXLE

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Operation

• The driving force transmission from the input shaft to the output gear is the same as that in fourth gear.

• Since only the reduction gear operation is different in fifth gear when compared with fourth gear, description for

the driving force transmission from the input shaft to the output gear is omitted.

• The driving force of the output gear counterclockwise rotation is transmitted to the idler gear as clockwise

rotation driving force.

• Since the reduction internal gear, which is integrated with the idler gear, rotates clockwise it tries to revolve the

reduction pinion clockwise.

• Since the direct clutch is engaged, the driving force of the reduction pinion, which tries to rotate clockwise, is

transmitted to the reduction carrier and then to the reduction sun gear via the direct clutch.

• Due to this, the reduction carrier and reduction sun gear rotate together.

• Since the reduction pinion is integrated with the reduction carrier, when the internal gear tries to rotate the

reduction pinion, the reduction carrier and reduction sun gear rotate together. (Direct connection)

• Since the driving force transmission using the one-way clutch such as in first to fourth gear does not occur in

fifth gear, engine braking is applied during deceleration.

• However, since the gear ratio is small in fifth gear, efficiency of engine braking may be reduced.

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AMU0517A576