POWERTRAIN OPERATION[GF4AX-EL]

id051703107200

Component Parts And Their Movement

Symbol

Component part

Movement

C1

Forward clutch

•  Transmits reverse forward drum rotation to small sun gear

C2

Coasting clutch

•  Transmits reverse forward drum rotation to small sun gear
(Accordingly, provides engine braking)

C3

3-4 clutch

•  Transmits 3-4 clutch drum rotation to planetary carrier

C4

Reverse clutch

•  Transmits reverse forward drum rotation to large sun gear

B1

2-4 brake band

•  Locks 2-4 brake drum and large sun gear rotation

B2

Low and reverse brake

•  Locks low and reverse brake hub rotation

OWC1

One-way clutch 1

•  Transmits reverse forward drum rotation to small sun gear only when driven

OWC2

One-way clutch 2

•  Locks planetary carrier rightward rotation

―

Planetary gear

•  Converts driving force transmitted by operation of brakes and clutches, and transmits force to output gear
(Performs shifting function)

Symbol	Component part	Movement
C1	Forward clutch	• Transmits reverse forward drum rotation to small sun gear
C2	Coasting clutch	• Transmits reverse forward drum rotation to small sun gear (Accordingly, provides engine braking)
C3	3-4 clutch	• Transmits 3-4 clutch drum rotation to planetary carrier
C4	Reverse clutch	• Transmits reverse forward drum rotation to large sun gear
B1	2-4 brake band	• Locks 2-4 brake drum and large sun gear rotation
B2	Low and reverse brake	• Locks low and reverse brake hub rotation
OWC1	One-way clutch 1	• Transmits reverse forward drum rotation to small sun gear only when driven
OWC2	One-way clutch 2	• Locks planetary carrier rightward rotation
―	Planetary gear	• Converts driving force transmitted by operation of brakes and clutches, and transmits force to output gear (Performs shifting function)

Note

• Rotations are described as viewed from the oil pump side.

Power Flow

1GR

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2GR

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3GR

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4GR

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R position

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