Test 4 - Selector In "Circle D" Overdrive Gear
NOTE: This test checks the 2/4 clutch hydraulic circuit.1. Attach gauge to the 2/4 clutch tap.
2. Move selector lever to the "circle D" position.
3. Allow vehicle front wheels to turn and increase throttle opening to achieve an indicated vehicle speed of 30 mph.
4. The 2/4 clutch pressure should read 75 to 95 psi.