"R" Range

The line pressure which acted on the manual valve passes through the reverse clutch accumulator and causes the reverse clutch to engage. At this time, the accumulator temporarily Repressurizes the line pressure to engage the reverse clutch according to the throttle opening so as to reduce the shock caused when the reverse clutch is engaged.

Furthermore, with the shift solenoid valve No. 1 turned ON and the shift solenoid valve No. 2 OFF, the 1 - 2 shift valve moves to the right because its left side is subject to the line pressure and the 3 - 4 shift valve moves to the left because its left side is free from the line pressure.

In this way, the line pressure which passed through the manual valve and acted on the 1 - 2 shift valve passes through the valve and causes the 1st and Reverse brake to engage.

And the line pressure which acted on the 3 - 4 shift valve, passes through the valve and the coast clutch modulator valve, to cause the coast clutch to engage.