When the selector lever is moved to the Reverse (R) position,
the manual valve is repositioned in order to allow the line pressure to enter
three passages, Reverse, RNDI (Reverse, Neutral, Drive and Intermediate)
and RND (Reverse, Neutral and Drive).
| • | Reverse oil from the manual valve performs the following functions: |
| - | It seats the direct clutch and reverse checkball in the direct
clutch passage |
| - | It flows to both the inner and the outer areas of the clutch piston,
applying the direct clutch |
| - | It seats the Lo and Reverse checkball in the Lo First passage |
| - | It applies the Lo and Reverse clutch |
| - | It flows to the reverse boost valve and will boost the reverse
line pressure to about 827 kPa (120 psi) |
| • | RNDI oil from the manual valve flows to the throttle valve and
is regulated to TV pressure. TV oil flows through the shift TV valve and is
limited by the valve to approximately 620 kPa (90 psi). |
| | Oil from the shift TV valve is directed to the TV boost valve. Shift
TV oil acts on the TV boost valve in order to boost reverse line pressure
to approximately 1447 kPa (210 psi). |
| • | 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).
Reverse
