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Component
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Function
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Forward clutch
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• Transmits input torque from turbine shaft to front sun gear
• Operates in forward range of first, second, or third gear position
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3-4 clutch
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• Transmits input torque from turbine shaft to rear planetary carrier
• Operates in forward range of third or fourth gear position
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Reverse clutch
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• Transmits input torque from turbine shaft to rear sun gear
• Operates when vehicle is backing
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2-4 brake band
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• Locks rotation of reverse drum, and fixes rear sun gear
• Operates in second or fourth gear position
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Low and reverse brake
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• Fixes rotation of front internal gear
• Operates when vehicle is backing or in first gear position (L range, HOLD or M range 1GR)
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One-way clutch
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• Locks counterclockwise rotation of front internal gear in first gear position
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Planetary gear
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• The planetary gear functions as a transmission due to the engagement/ disengagement of clutches and/or brakes, converts the transmitted driving force of the turbine shaft and transmits it to the output gear.
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