Troubleshooting and How To Set Initial Adjustment of the Dexter Nev-R-Adjust Electric Trailer Brakes
Single axle cargo trailer brakes don’t lock up anymore I noticed after I put on new 7plug tow wire to trailer into junction box on trailer tongue. I Think I did it right? Also dont use trailer much it’s always parked in dry cement floor area. So I’m not totally positive when brakes stopped locking up when apply slide bar on brake controller. Well I Installed New brake set with drums , new wire across axle to brakes soldered all wire connections under trailer ,adjusted brakes on both sides manually. I have two different tow vehicles, I hear magnets working when I use slide bar on brake controller. I feel a slight drag from trailer brakes but wont stop car at 5 miles an hour. I jack up trailer and brakes are adjusted nicely. The only thing I can think of is my wiring in triangle box on tongue of trailer is wrong. But then how is brakes working? All lights, directionals and brake lights work. There are no backup lights on trailer. Also blue wire from brakes to tongue junction box new.
asked by: Robert S
After installing replacement brakes such as the Dexter Nev-R-Adjust Electric Trailer Brake Kit, # 23-468-469, proper adjustment is needed for that initial setting. If your brakes are engaging but not enough to apply ample friction for stopping then you have either not adjusted/installed the brakes correctly or there is an issue with brake controller side of the system. You will need to ensure there is enough voltage going to the brakes for proper engagement, check your wiring.
To adjust the Dexter Nev-R-Adjust electric trailer brakes manually, there are a couple teeth on the adjustment wheel that are exposed just under the lever. See the attached image. You will need a brake adjustment tool or a flat head screw driver to make the adjustments. First pull the tab away from the wheel and this will allow you take a second screw driver or brake adjustment spoon and be able to rotate the adjustment wheel.
The second way to adjust is by making multiple hard braking runs. Attach to your tow vehicle and go to a fairly smooth and level surface where you can safely increase your speed to about 20 mph, then step on the brakes. Repeating this process until the adjustment wheels on the brake assemblies have been properly seated.
If the brakes seem like they need to be adjusted quite a bit, then manually adjusting them first would be best. This would get them closer to the correct adjustment and then a few braking attempts should finish the job.
Please note the linked help article below on brake adjustments and for testing trailer brake magnets.
(click to enlarge)
Featured Help Information
- Shop: Dexter Nev-R-Adjust Electric Trailer Brakes - 10" - Left/Right Hand Assemblies - 3.5K
- Shop: Dexter Electric Trailer Brakes - 10" - Left/Right Hand Assemblies - 3.5K
- Shop: Dexter Trailer Hub and Drum Assembly for 3,500-lb Axles - 10" Diameter - 5 on 4-1/2
- Video: Dexter Nev-R-Adjust Electric Trailer Brake Kit Installation
- Shop: etrailer Electric Trailer Brakes - Self-Adjusting - 10" - Left/Right Hand Assemblies - 3.5K
- Q&A: Troubleshooting Weak Braking After Installing New Dexter Electric Brakes on Trailer
- Q&A: New Dexter Nev-R-Adjust Trailer Brakes are Not Locking Up
- Q&A: Self-Adjusting Brakes Will Not Lock Up Trailer After Fresh Install
- Article: Trailer Tire Sizing
- Video: Dexter Axle Trailer Brakes - Electric Drum Brakes - 23-468-469 Review
- Shop: Dexter Trailer Hub & Drum Assembly for 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 - Pre-Greased
- Q&A: Recommended Electric Brake Assemblies for 2005 Jayco EXP Trailer
- Q&A: Replacement Hub/Drum and Brake Assemblies for Dexter 3,500 lb Trailer Axle
- Q&A: Electric Brake Replacements for Tandem 3500 lb. Trailer Axles
- Q&A: Best Trailer Brakes for a 3,500 Lb Axle
- Shop: Dexter Trailer Hub and Drum Assembly - 3,500-lb E-Z Lube Axles - 10" - 5 on 4-1/2 - Galvanized
- Shop: Dexter Nev-R-Adjust Electric Trailer Brakes - 12" - Left/Right Hand Assemblies - 6K
- Video: Bearing Repacking and Grease Seals Installation
- Video: Dexter Axle Trailer Hubs and Drums - Hub with Integrated Drum - 8-247-50UC3-EZ Review
- Shop: Brake Controller
- Shop: Suspension Enhancement
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Search Results: electric drum brakes
- Search Results: fulton
- Video: Review of etrailer Trailer Hubs and Drums - Hub with Integrated Drum - AKHD-545-35-EZ-K
- Video: Timbren Silent Ride Suspension Review
- Video: Dexstar Tires and Wheels - Wheel Only - AM20545 Review
- Article: Trailer Wiring Diagrams
- Search Results: sumosprings
- Search Results: grease seal