I currently have a Tie Down brake actuator that has a solenoid valve that is hooked up to the hydraulic line. There are disc brakes on the trailer. I think this is an over glorified brake actuator the is actually a hydraulic unit that works on surge? I am looking at the Hydrastar unit, but, am not sure as to how the unit works? Does it have some type of a pump that puts hydraulic fluid to the brakes depending on how much voltage the brake controller puts out?
asked by: Andrew O
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