Ford Falcon. Manual — part 230

307-01-23 Automatic

Transmission 307-01-23

DESCRIPTION AND OPERATION (Continued)

Hydraulic System - Sequential Sports Shift 1 / Manual 1

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307-01-24 Automatic

Transmission 307-01-24

DESCRIPTION AND OPERATION (Continued)

Power Flow — Auto 1

Drive is via the input shaft to the forward clutch

deadheads 2nd oil and the Band Apply Feed (BAF)

cylinder. The C2 clutch is engaged to drive the

circuit is exhausted.

forward sun gear via the 3-4 OWC. The forward sun

Drive (Line pressure) is routed through the 3-4 shift

gear drives the short pinion anti-clockwise. The short

valve to apply to C4 clutch.

pinion drives the long pinion clockwise. The 1-2 OWC

prevents the planetary gear carrier from rotating under

reaction force and the long pinion rotates on its axis

driving the internal ring gear and output shaft in a

clockwise or forward direction. There is no engine

braking on overrun.

Control
Solenoids 1 and 3 are switched OFF. Solenoids 2 and

4 are switched ON. VPS is set to minimum pressure

(approximately 0 kPa). Drive (Line pressure) oil from

the Manual valve applies the C2 clutch.

When solenoid S1 switches OFF, S1 oil pressure,

derived from Line 500 moves the 3-4 shift valve to the

left. At the same time S1 and S3 oil is directed to the

1-2 shift valve moving it to its second gear position.
2nd oil (Line pressure) from the 1-2 shift valve is

directed to the Band Apply Regulator (BAR) valve and

to the 2-3 shift valve.
When solenoid S4 switches ON, the pressure behind

the BAR piston is exhausted, S5 pressure is minimum

allows the BAR spring to bias the BAR valve to the

exhaust position. In this position the BAR valve

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307-01-25 Automatic

Transmission 307-01-25

DESCRIPTION AND OPERATION (Continued)

Hydraulic System - Auto 1st

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307-01-26 Automatic

Transmission 307-01-26

DESCRIPTION AND OPERATION (Continued)

Power Flow — D2 and Sequential Sport Shift

2/Manual 2

Drive is via the input shaft and forward clutch cylinder, only 2.32 times Line 500 pressure less 237 kPa (946

Clutch C2 is applied to drive the forward sun gear via kPa), to the Band Apply Feed (BAF) circuit.

the 3-4 OWC. The forward sun gear drives the short

Band Apply Feed oil is directed to:

pinion anti-clockwise. The short pinion drives the long

the outer apply area of the front servo piston

pinion clockwise. The B1 band is applied holding the

the 3-4 shift valve for use when the transmission

reverse sun gear stationary therefore the long pinion

is shifted to fourth gear

‘walks’ around the reverse sun gear taking the internal

ring gear and output shaft with it in a clockwise or

the 1-2 shift valve to provide an exhaust port

forward direction. The C4 clutch is applied to by-pass

when the transmission is shifted to first gear.

the 3-4 OWC and provide engine braking on overrun.

the 1-2 shift valve to provide an exhaust port

when the transmission is shifted to first gear.

Control

Drive (Line pressure) is routed through the 3-4 shift

Solenoids 1, 3 and 4 are switched OFF. Solenoid 2 is

valve to apply to C4 clutch.

switched ON. Drive (Line pressure) oil from the

Manual valve applies the C2 clutch.

When solenoid S1 switches OFF, S1 oil pressure,

derived from Line 500 moves the 3-4 shift valve to the

left. At the same time S1 and S3 oils are directed to

the 1-2 shift valve moving it to its second gear

position.
2nd oil (Line pressure) from the 1-2 shift valve is

directed to the Band Apply Regulator valve and to the

2-3 shift valve.
The Band Apply Regulator valve supplies 2nd oil,

regulated to a pressure 1.8 times Line 500 pressure

less 191 kPa for the BAR spring (724 kPa) or for XR8

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