Trailer Brakes Will Not Lock Up with Output Voltage Over 13 Volts
Question:
Why does it seem that I cant get my trailer brakes to lock up? I can see that the trailer is putting out 13.8V to brakes? I have tightend the brakes down where they drag pretty more then you would want and they still do not lock up? Any suggestions?
asked by: James B
Expert Reply:
If you are getting 13.8 volts at the magnets then that is more than enough. Maybe too much like there is a short somewhere. I recommend testing the brake magnets. First you can inspect the magnets and if you can see the copper windings coming through then the magnets will need to be replaced.
To further test the magnets electrically you will need your volt meter and a separate 12 volt battery. I have included a link to our help article on testing brake magnets for you.
Brakes can also be weak if there is any grease on the pads on inside the drum where the pads touch. Grease on the pads is pretty much impossible to eliminate so they shoes would have to be replaced if that is the case.
Also make sure that the magnet ground wires are attached to clean bare metal surfaces near the magnets for the best results.
Product Page this Question was Asked From
Dexter Electric Trailer Brake Assembly - 10" - Right Hand - 3,500 lbs
- Accessories and Parts
- Trailer Brakes
- Electric Drum Brakes
- RH
- 3500 lbs
- Brake Assembly
- Manual Adjust
- 10 x 2-1/4 Inch Drum
- Dexter
more information >
Continue Researching
- Q&A: Checking Electric Brakes For Proper Voltage in System
- Article: Testing Trailer Brake Magnets for Proper Function
- Q&A: Replacement Dexter Brake Assemblies for 36-19 Assemblies
- Article: Trailer Wiring Diagrams
- Q&A: Replacement Dexter Trailer Brake Kit To Replace Dexter 36-19 Brake Assemblies
- Q&A: Replacement Hub and Brake Assemblies that Fit Sure Trac 3,500 lb Axle
- Article: How to Adjust Your Trailer Brakes | The Ultimate Guide
- Article: Breakaway Kit Installation for Single and Dual Brake Axle Trailers
- Q&A: Recommended Wet Bolt For Center Hole Of The CRE 3000 Equalizer
- Q&A: Replacement Bolt and Nut for MORryde Wet Bolt Kit part # MR46ZR
- Q&A: Replacement Hub for a Lippert LCI 126003 Hub
- Article: Trailer Tire Sizing
- Article: Parts Needed to Add Electric Drum Brakes to a Trailer
- Article: How to Choose the Right Trailer Hitch Class