Third Clutch Releases

WARNING: This page is about a different variant/trim than selected.

2-3 Shift Valve

Spring force holds the 2-3 shift valve in the downshifted position. The 2-3 shift valve prevents drive fluid from entering the third clutch circuit. In the absence of hydraulic pressure in the third clutch circuit, spring force moves the third clutch exhaust valve.

Third Clutch Exhaust Valve

Spring force holds the third clutch exhaust valve in the downshifted position. The valve allows third clutch fluid from the third clutch piston to exhaust through the valve. Orificed third clutch fluid form the valve is routed back through orifice #3 to checkball #11.

#11 Checkball (Third Clutch, Orificed Third Clutch)

The #11 checkball is located in the case cover. This checkball is unseated by orificed third clutch fluid. This allows fluid to enter the third clutch fluid circuit.

2-3 Accumulator

Orificed third clutch fluid from the accumulator piston passes through orifice #31, and the fluid enters the third clutch circuit. Third clutch fluid is then routed to the 2-3 shift valve and to the TCC solenoid valve, where the fluid exhausts.