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How to Bleed Electric Over Hydraulic Trailer Brakes Using Titan EHB Actuator

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procedure electro-hydraulic bleeding

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Expert Reply:

Below are the bleeding procedures for the Titan electric over hydraulic brake actuator # T4813100. I have also linked the manual.

Fill reservoir and Bleed the brakes: Upon initial verification of the electrical system remove one of the filler caps and fill the reservoir to within 3/8 inches of the filler cap opening (there are two filler caps on the reservoir, either may be used for filling and checking fluid level as they both enter a common reservoir).

Fill the reservoir with NEW DOT II BRAKE FLUID. Never reuse brake fluid that has been salvaged or removed from another system. Contaminated or dirty brake fluid may cause damage to the system resulting in system failure.

Bleeding the brakes: It is essential to remove all air from the brakes and brake-lines prior to operation of the vehicle. To bleed the brakes remove the key from the breakaway switch to start the unit.

Starting with the brake furthest from the actuator open the bleeder screw and allow it to remain open until seeing brake fluid free of air bubbles coming out of the bleeder screw. Close the bleeder screw and move to the next brake and so on until all brakes have been bled.

While performing the bleeding process monitor the fluid level in the reservoir so that more air is not pumped into the brake lines because of low fluid level. To prevent spilling brake fluid on the ground one end of a length of plastic tubing should be placed over the end of the bleeder screw and the other end should be placed into a container so that the fluid flow can be monitored for bubbles. After all brakes have been bled replace the key in the breakaway switch.

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