... run the engine. 2, Special protector to protect solenoid. 3, Approved by ISO9001:2008 standard. Compared with Woodward ... stroke, it would automatic adjust the solenoid, it would help the solenoid pull in the end.2, Technology ... regulator, generator synchronizer, genset controller, power factor regulator, fuel solenoid, charger for engine start battery, actuator, speed controller, ...