POWERTRAIN SYSTEM OUTLINE [FS5A-EL]SM1935118
POWERTRAIN SYSTEM OUTLINE [FS5A-EL]

id051721281200

• The powertrain mechanism of the FS5A-EL type consists of four pairs of clutches, band brake, two pairs of brakes, two pairs of one-way clutches, and three pairs of single type planetary gears.

Component

Function
Clutch
Forward clutch
C1
• Transmits the input torque from the turbine shaft to the front sun gear.
3-4 clutch
C2
• Transmits the input torque from the turbine shaft to the rear planetary carrier.
Reverse clutch
C3
• Transmits the input torque from the turbine shaft to the rear sun gear.
Direct clutch
C4
• Engage the secondary planetary carrier and the secondary sun gear.
Band brake
2-4 brake band
B1
• Locks rotation of the reverse drum and fixes the rear sun gear.
Brake
Low and reverse brake
B2
• Fixes the rotation of the front internal gear.
Reduction brake
B3
• Fixes the rotation of the secondary sun gear.
One-way clutch
One-way clutch No.1
OWC1
• Locks the counterclockwise rotation of the front internal gear. (Directions of rotation is viewed from the torque converter.)
One-way clutch No.2
OWC2
• Locks the counterclockwise rotation of the secondary sun gear. (Directions of rotation is viewed from the torque converter.)
Single type planetary gear
Front planetary gear
—
• Converts the transmitted driving force of the turbine shaft and transmits it to the primary gear
Rear planetary gear
—
• Converts the transmitted driving force of the turbine shaft and transmits it to the primary gear
Secondary planetary gear
—
• Converts the transmitted driving force of the turbine shaft and transmits it to the output gear

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