What is a hydraulic brake actuator?
Hydraulic Trailer Drum Brake Actuators Surge Brake Actuator systems work by the “surge” or “push” of the trailer toward the tow vehicle during deceleration which automatically synchronizes the trailer brakes with the tow vehicle brakes.
How do you check electric hydraulic brakes?
The first test to try is to connect the white wire to the negative post of the battery. Then connect the black wire to the positive post on the battery. The unit may click but should not run. If it does run, it is a bad unit and needs to be replaced.
Can you lock out surge brakes?
The only way to turn a surge brake actuator “off” is to engage a lockout on the actuator. Some actuators have manual lockouts, others have electric lockouts, and some have no way to lock out the actuator. The electric lockout is wired to the trailer connector to get signal from the vehicle’s reverse light circuit.
How do you bleed electric hydraulic trailer brakes?
Remove the key from the breakaway switch to start the unit. Start with the brake furthest from the actuator. Open the bleeder screw and allow it to remain open until you see brake fluid that is free of air bubbles. Close that bleeder screw and move to the next brake and so on until all brakes have been bled.
What is electric over hydraulic?
An electric over hydraulic unit is a self-contained electrically operated pump/hydraulic reservoir which sits on the trailer (normally mounted centrally at the front of the trailer tongue behind the coupler).
Are hydraulic brakes better than electric brakes?
Hydraulic disc brakes outperform electric brakes in stopping power, have less brake fade and better heat dissipation. If you live in an area with hills or mountains, upgrading to hydraulic disc is even more important.
Why are my electric trailer brakes not working?
First, check the vehicle and trailer connectors for corrosion. If there is a bad ground connection the trailer brakes will not work. Next, check the brake controller wiring. Sever the blue brake output wire, leaving enough room to splice it back together when testing is done and then apply the manual slide.