Reverse

Reverse:

REVERSE

DIRECT CLUTCH - APPLIED
LO AND REVERSE CLUTCH - APPLIED

When the selector lever is moved to the Reverse (R) position, the manual valve is repositioned to allow line pressure to enter three (3) passages, as follows:
1. Reverse
2. RNDI (Reverse, Neutral, Drive and Intermediate)
3. RND (Reverse, Neutral, and Drive)

FIRST - Reverse oil from the manual valve seats direct clutch and reverse checkball (5) 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 checkball (4) in the lo 1st passage and applies the lo and reverse clutch. Reverse oil flows to the reverse boost valve and will boost reverse line pressure to about 827 kPa (120 psi).

SECOND - RNDI oil from the manual valve flows to the throttle valve and is regulated to Throttle Valve (T.V.) pressure. T.V. oil flows through the shift T.V. valve and is limited by it to approximately 620 kPa (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 approximately 1447 kPa (210 psi).

THIRD - RND oil from the manual valve is directed to the 2-3 shift valve, but this has no function in Reverse.

SUMMARY

The direct clutch is applied. The lo and reverse clutch is applied, The transmission is in Reverse (R).