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Old 05-12-2015, 12:24 PM   #1
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Brake help

I have a new wp 30wr, Brakes were really weak so I decided to adjust them up. I adjusted them up I could hear the shoes scrub the drums. Still they were weak. I set my brake controller all the way up and with truck in drive @ idle bar slide way over on controller the truck still moved the trailer. I pulled the breakaway cable and I could still move the trailer. Put cable back in I could hear the brakes release. With that I`m thinking its in the trailer end. Thanks for any help before a trip to the dealer.
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Old 05-12-2015, 12:53 PM   #2
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There can be several possible issues. Have a friend press on the TV brake pedal while you walk around the trailer with a compass ... pass the compass near the wheel hubs ... it should spin ... if it doesn't one of more brakes has a bad wire or loose connection. The wire traveling thru your axle tube from one side of your camper to the other is prone to issues. Your brakes could be coated with grease if the rear seal has blown out ... this is especially possible with the EZ lube axles. You may have a bad ground from truck to trailer. If you have a clamp on ammeter ... each brake magnet pulls about 3 amps ... with the brake pedal depressed and the ammeter around the blue wire going to your camper, it should read around 12 amps.
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Old 05-12-2015, 01:11 PM   #3
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Had same issue, Grease seals were bad, Magnet has to make contact with interior flat surface in inside of hub. Mine was all dirty and greasy. Pull one hub and check. While hub is off have someone step on brake pedal, hold pliers or wrench on magnet and it should stick. This way you are also checking magnet.
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Old 05-12-2015, 02:14 PM   #4
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if your seals are bad and the pads got contaminated you need to replace the linings, they prob just got glazed over while the trailer was delivered to your dealer,i complained about my brakes since day one to the dealer, they even talked to the factory and I got was ALL GOOD... so I decided to fix my problem, first replaced the seals with heavy duty $15 each vs 3.00, then replaced the pads, then controller (twice) p-2, p-3, now timed base. then found the wiring going to the axles was 14 gage and should be 10 gage at 12 amps, I replaced the entire wiring from the pin box to the magnets and got away from the crappy crimps the factory installed, I put in a terminal block and ran everything to it, now I can lock my brakes at any speed, she sure slows down nice as I can set the controller to just before lock up and the trailer pulls the truck down vs the trailer pushing the truck and just about terrifying me a couple times when a animal (deer) came out in front of me at 55mph, or a car pulled out in front.
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Old 05-12-2015, 07:18 PM   #5
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Thanks for the help, I pulled a hub and the shoes were greasy. Also check magnets with a compass and the compass turns @ each wheel. I have lippert components inc axles 6000gawr rated. Anyone know what seal and shoes I need. Or be better off taking them to a trailer shop to get the right ones?
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Old 05-13-2015, 12:14 AM   #6
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I would pull one set off and take them to the trailer parts store for new pads, seals and cotter keys... You might be able to clean with brake clean but I would just go with new pads and seals..

I use to be a fan of ez lube axles and I have never had a problem. But if you don't take it easy and spin the wheel when greasing you can blow past the seal. I just do it the olf fashioned way now... Pull the bearings, clean ,inspect, grease them up and put them back in...
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Old 05-13-2015, 08:10 AM   #7
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1|243, I agree pull the bearings to clean and inspect. Then manually repack. The seal will need to be replaced but this ensures your brake linings are good to go. EZ lube cotter pins for bearing removal are a pain but a little jiggling of the castle nut will get the job done. YouTube is great to view the procedures. Happy Trails !!!!
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Old 05-13-2015, 05:56 PM   #8
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I ordered the parts from etrailer today and I agree with 1/234 I `m going to pack the bearings by hand. Think its a much better way to go. That extra time may save being stranded along the highway.
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Old 05-14-2015, 02:17 PM   #9
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bought my seals from a local autoparts P/N 412920 notice the diff between the factory seals and good seals, 6000k lippert axles 12x2 brakes
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Old 05-14-2015, 02:20 PM   #10
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Why pack by hand?
For $6.00 I've packed tons of bearings with this deal!
Hand cramps be gone!

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