5-7 Reverse Clutch Releases

#17 Ball Check Valve 

FEED 1 fluid seats the #17 ball check valve against the REVERSE fluid circuit. The FEED 1 fluid seats the #16 ball check valve and is routed thru orifice #60 into the PARK OFF fluid circuit. PARK OFF fluid is directed to the park release servo piston.

Park Release Servo Piston 

PARK OFF fluid is directed to the park release servo piston applying pressure against park release servo piston spring force. The park inhibit solenoid is then energized on.

Clutch Select Control Solenoid I 

The clutch select control solenoid I is signaled off allowing CLUTCH SELECT SOLENOID fluid to exhaust from the tcc regulator apply valve.

Clutch Selector Valve 

The clutch selector valve spring pressure shifts the valve to allow CLUTCH SELECT VALVE SIGNAL fluid to seat the # 12 ball check valve allowing CLUTCH SELECT VALVE SIGNAL fluid to be exhausted thru orifice #41 into the CLUTCH SELECT SOLENOID fluid circuit which is routed thru orifice #69 and exhausted thru the EXHAUST fluid circuit.

TCC Regulator Apply Valve 

The tcc regulator apply valve spring pressure shifts the valve to allow CLUTCH SELECT SOLENOID fluid to be exhausted thru orifice #69 and exhausted thru the EXHAUST fluid circuit

5-7 Reverse Solenoid E 

The 5-7 reverse solenoid E de-energizes releasing pressure against the 5-7 reverse regulator valve spring force. This blocks DRIVE 2 fluid from entering the 57R CLUTCH FEED fluid circuit. 57R CLUTCH FEED fluid is exhausted thru orifice #25 into the EX BACKFILL fluid circuit and thru orifice #21 into the EXHAUST fluid circuit.

5-7 Reverse Clutch Assembly 

The 5-7 reverse clutch is released allowing 57R CLUTCH FEED fluid to exhaust thru orifice #45 and thru orifice #22 into the EXHAUST fluid circuit.