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Regards.
If the circuit breaker of the motor starter is tripped, to reset it you must move the breaker handle to the full open (OFF) position, then you can try reclosing the breaker.
With the unit not running and not on cooldown, I would suggest putting the Torque Adjustor motor starter's HAND-OFF-AUTO switch to HAND, use some kind of clamp-on ammeter on one of the motor phase leads, and use the RAISE and LOWER pushbuttons on the starter door to "stroke" the motor to see why the circuit breaker tripped. (Don't forget to return the switch to AUTO when finished with the testing.) If the amps are high when you are stroking the torque adjustor during this test, then there is something wrong with the torque adjustor. Some of the torque adjustor motors also have brake mechanisms and the break release solenoid has been know to fail on occasion.
I can tell you one thing that usually draws lots of current is trying to lower (close) the torque converter guide vanes when the starting motor is running and the torque converter is pressurized and transmitting torque. That is NOT a desirable condition.
There is also usually a small adjustable pointer on the circuit breaker's overload mechanism. As related to the face of a clock, what position is the pointer in (for example, is it at the 9 o'clock position, or the 12 o'clock position or ?)?
Again, the Torque Adjustor motor (a fractional horsepower motor) doesn't determine if the torque converter transmits torque. If the Starting Motor is running and 20TU-1 is energized and the unit is accelerating, even slowly, the torque converter is transmitting torque from the Starting Motor to the turbine shaft.
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