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| Illustration 1 | g06098444 |
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Rear of the Machine (1) Vibratory manifold (2) Vibratory solenoid | |
Vibratory manifold (1) is located inside the fuel tank compartment, on the rear wall of the tractor. The operator station deck plate provides access to this component.
Vibratory manifold (1) controls the speed of the vibratory motors. The vibratory pump provides supply oil to the vibratory manifold to drive the vibratory system. The vibratory manifold contains a valve that controls hydraulic oil flow to the vibratory motors. Motor speed is controlled by the position of the valve.
Vibratory solenoid (2) is a proportional solenoid. This solenoid controls the position of the vibratory valve. When the solenoid is not energized, the valve is open. In this case, the vibratory supply oil is directed to the oil cooler manifold. As solenoid current increases, the valve closes. This action directs a proportional amount of supply oil to the vibratory motors.
The screed ECM controls the proportional current signal to vibratory solenoid (2). The signal is calibrated at zero motor rpm and at 3000 motor rpm. A linear scale factor is calculated by the ECM to determine the solenoid current required between these speeds.