Reverse Range

In this range, the direct clutch and the lo and reverse clutches are applied. The transmission is in Reverse range.

With selector lever in Reverse position, the manual valve is positioned to allow line pressure to enter the three following passages:

1. Reverse.
2. RNDI (Reverse, Neutral, Drive and Intermediate).
3. RND (Reverse, Neutral and Drive).

Reverse oil from the manual valve seats direct clutch and reverse check ball in the direct clutch passage and flows to both the inner and outer areas of the clutch piston, applying the direct clutch. Reverse oil also seats the lo and reverse check ball in the lo 1st passage and applies the lo and reverse clutch. Reverse oil flows to the reverse boost valve and boosts reverse line pressure to about 120 psi. RNDI oil from the manual valve flows to the throttle valve arid is regulated to T.V. pressure. T.V. oil flows through the shift T.V. valve and is limited by it to about 90 psi oil from the shift T.V. valve is directed to the T.V. boost valve. Shift T.V. oil acting on the T.V. boost valve will boost reverse line pressure to about 210 psi. RND oil from the manual valve is directed to the 2-3 shift, but has no function in Reverse.