Drive Range-Third Gear (TCC Released)

Drive Range - Third Gear - Converter Clutch Released:

DRIVE RANGE-THIRD GEAR

CONVERTER CLUTCH - RELEASED
FORWARD CLUTCH - APPLIED
DIRECT CLUTCH - APPLIED

As both 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 Throttle Valve (T.V.) spring and shift T.V. oil. This allows the 2-3 shift valve to open and RND oil enters the direct clutch oil passage. This oil is called direct clutch oil.

Direct clutch oil from the 2-3 shift valve is directed to the following:
1. Direct Clutch Exhaust Checkball (1)
2. 3-2 Control Valve
3. Direct Clutch and Reverse Checkball (5)
4. Direct Clutch Accumulator. Checkball (2)
5. Accumulator Check Valve
6. Intermediate Servo
7. 3rd Clutch Pressure Switch

BASIC CONTROL
Direct clutch oil from the 2-3 shift valve flows past the direct clutch exhaust checkball (1), past the 3rd clutch pressure switch, to the direct clutch and reverse checkball (5), seating it in the reverse passage, and to the inner area of the direct clutch piston, applying the direct clutch. At the same time, direct clutch oil is directed past the direct clutch accumulator checkball (2) into the direct clutch accumulator passage, where it is called direct clutch accumulator oil, to the direct clutch accumulator check valve, seating it; and to the release side of the intermediate servo. The pressure of the direct clutch accumulator oil combined with the servo cushion spring, moves the servo piston against 2nd oil and acts as an accumulator for a smooth intermediate band release and direct clutch apply.

Direct clutch oil also flows through the 3-2 control valve to the direct clutch accumulator passage.

SUMMARY
The forward and direct clutches are applied and the intermediate band is released; the transmission is in Drive (D) Range - Third Gear (direct drive).