Solenoid Valves
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| Illustration 1 | g00722802 |
Solenoid Valve (Pilot Control Actuator) (1) Solenoid. (2) Solenoid core. (3) Pilot spool. (4) Pilot chamber. | |
The solenoid valve is an output for the implement ECM. When the operator moves a implement control lever, the ECM activates the appropriate proportioning solenoid. The solenoid is energized with a PWM signal from the ECM. The PWM signal acts as a source of variable current to activate the solenoid.
When the solenoid (1) is energized, the solenoid core (2) moves the pilot spool (3) to the right. The solenoid directs pilot oil from chamber (4) to the tank. This decreases the pilot oil pressure at the end of the main spool. The main spool will shift and the spool will direct oil to the appropriate implement.
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