How to Repair the Surge Brakes on a Boat Trailer & Surge brakes not releasing after breaking can have several causes which fall into two general categories. Check that the breakaway switch is in the off position and is in good working order. Fast forward to now. I'll post results when I have them. The bad news is that if you do not have a circuit tester, their cost gets close to $100 for a good one. If you find one or more to be cool then those brakes are not functioning correctly or are out of adjustment. If your surge brakes are leaking fluid under the tongue then you likely have a leak in the master cylinder or the reverse lockout mechanism. If not, we recommend you rebuild or replace the master cylinder & wheel cylinders. LAT618HG (Surge Brake Actuator Repair Parts), TA614 STD (Surge Brake Actuator Repair Parts). The brakes should apply evenly on both sides of the trailer. By adding the brake fluid it is possible/plausable that you had enough enough fluid in the lines to actuate at least one side, and if you surge brake master cylinder was working moderatly it could have hung/seized up so the brakes were working 20% cold and 80%+- as they warmed up and expanded.. Just a thought lncoop Vice Admiral Joined Apr 18, 2010 Although you really cant bench test the wheel cylinder, you can peel back & remove the rubber boot to look for rust or corrosion that would prove a stuck piston. Slide the hydraulic pushrod back so the trailer brakes are engaged. What this switch does is apply the brakes when the trailer has broken away from the hitch. As mechanical parts that move during normal operation, they do wear over time. The brake light switch is located on the brake pedal in most car models, and it is often quite easy to replace it yourself. Products, Carbon Monoxide & Can i pull a disc brake trailer with the brake pads removed ? Trucks & Trailers - Back up Solenoid on Surge Brake Trailers - I have a trailer with surge brakes that features a solenoid that is activated when my truck is shifted into reverse to allow the trailer to be backed up an incline without activating the brakes. We recommend you remove the brake drum & visually inspect the shoe linings. The slide will offer resistance due to the orifice and shock absorbers, so expect to stroke it with effort. Switches, Shore Power & AC If you have proven the master cylinder is working, the orifice isnt clogged, and the brake tubing is clear, the wheel cylinder should operate when the master cylinder is engaged using the lever. You can also look for bad wheel bearings or worn suspension components. However, the Service Trailer Brake System message isnt one that you should ignore if you are towing a trailer. click here to visit our online parts section. (See photo below). When it does, you need to clean that corrosion off. The momentum of decelerating your vehicle is used for braking the trailer. When the front neck is then pushed into the back, that rod pushes into the master cylinder and then the brakes are applied. You need to have at least a five pin connector.
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