Drive Range - Third Gear

Drive Range - Third Gear:

DRIVE RANGE-THIRD GEAR

FORWARD CLUTCH - APPLIED
DIRECT CLUTCH - APPLIED
INTERMEDIATE CLUTCH - APPLIED

As vehicle speed and governor pressure increase, the force of governor oil acting on the 2-3 shift valve overcomes the force of the 2-3 shift valve spring and modulator oil. This allows the 2-3 shift valve to move, feeding intermediate clutch oil to the third clutch passage. This oil is called direct clutch oil.

Direct clutch oil from the 2-3 shift valve is directed as shown.
1. Direct Clutch
2. Front Accumulator Piston
3. 3-2 Valve

BASIC CONTROL

Direct clutch oil from the 2-3 shift valve flows past a one-way check valve to the inner area of the direct clutch piston to apply the direct clutch. Simultaneously, direct clutch oil is fed to the front accumulator piston. The pressure of the direct clutch oil, combined with the accumulator spring, moves the accumulator and servo pistons against the servo oil. This acts as an accumulator for a smooth direct clutch apply.

Direct clutch oil is also supplied to the 3-2 valve to move the valve against modulator pressure. This cuts off modulator oil to the 1-2 and 2-3 valves and allows the transmission to utilize the torque multiplying characteristics of the converter during medium throttle operation without downshifting.

SUMMARY

The forward, intermediate and direct clutches are applied. The transmission is in Drive Range - Third Gear (direct drive).