Hydraulic surge brakes on a trailer compulsion no wiring or hydraulic lines from the towing vehicle to function. These units are completely self-contained with their own seperate skillful cylinder. They drive strictly on differential inertia between the tow vehicle and the trailer. When the tow vehicle brakes, the front of the trailer moves forward for of momentum. As it moves forward, it depresses the pushrod activating the trailer skillful cylinder and applies the brakes. When the rod is released or vehicle is no longer braking, the spring impulse within the brakes forces the hydraulic fluid back into the crackerjack cylinder. They are very equipped with a breakaway method mandated by charter to application the brakes on the trailer should it come loose from the tow vehicle.
When finished with the second brake, as a last check, fill the master cylinder.
1. Loosen the brake bleeder screw on the brake farthest outside from the skillful cylinder. Attach the 5/16 tube to the brake bleeder screw and situate the at liberty bottle, unabridged half path with brake fluid up on the fender and include the hose into the bottle. The bottle must be ethical above the shove cylinder in the brake to bleed properly.
2. Remove the skilled cylinder subsume and fill the skillful with brake fluid. Interchange the cap. Comprehend the general screwdriver into the ½-inch gap in the coupler below the peanut on the pushrod, which extends outward from the skillful cylinder in the front of the brake coupler housing.
3. Push the screwdriver in an in-and-out motion to a depth of about ½-inch to force hydraulic fluid to the brakes and eliminating the air in the system. Do this for about 10 strokes.
4. Tighten the brake bleeder screw and remove the hose and the bottle of brake fluid on the fender and move to the opposite side and do this the same way.
5. Before the next side is bled check the master cylinder for fluid level and correct as necessary.This development is a chain and cable connected from the trailer to the tow vehicle. Provided the trailer becomes indifferent, the chain Testament occupancy the trailer endure the tow vehicle and the cable Testament pull on the emergency braking rod on the trailer adept cylinder applying the trailer brakes.
