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Old 05-11-2015, 10:29 AM   #1
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Aggressive Brakes

I have a 2013 Jayco 304 BHS. I recently repacked the bearings by hand and checked the brakes to ensure adequate amount of lining is left. I took my first trip over the weekend and noticed that the brakes were a lot more aggressive (almost grabby) than before. To complicate matters, I just changed vehicles from 2014 Ford Expedition to a 2015 Ford Expedition. Both vehicles came with factory installed brake controllers. The old expedition had the gain setting at 7.5, the new one, even with the gain setting at 4.0, still seems more aggressive. Could it be that I got tiny bit of grease on the drum? I'm usually careful to wipe down the drum after repacking the bearings. Thanks in advance.
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Old 05-11-2015, 11:04 AM   #2
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There might be a High and low setting on the Factory brake controller. High is for TT over 10,000 lbs and low for under. You might have to play a bit with the Brake controller settings.
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Old 05-11-2015, 11:07 AM   #3
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The factory brake controller doesn't seem to come with high or low setting. It just has the gain setting. I'm still trying to figure out why there is such as variability between the 2014 model and 2015 model Expeditions. Could tiny bit of grease getting on the brake shoe be a cause for the aggressive braking? Thanks.
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Old 05-11-2015, 11:20 AM   #4
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I would think that if you got any grease or the drum/shoes that the brakes would seem to slip. Did you happen to over tighten the axel nut when you reassembled the hubs?
Did you adjust the brakes? and if so did you over adjust them?


To me the only thing that was different was that you took things apart and then put them back together. That is where I would look first. Also knowing how ford does things I would say that there isn't any difference in the factory installed controller from a 2014 model to a 2015 model.
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Old 05-11-2015, 11:25 AM   #5
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I torqued the axle nut to 50ft-lbs and then backed it off and hand tightened per Dexter's owner manual. These are nev-r-adjust brakes so will adjust automatically. It looks like I'll probably have to take the hubs off again to see if anything is sticking.
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Old 05-11-2015, 11:41 AM   #6
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Did you tow the TT with both Fords? It could be possible that the programing of the controllers is different form one year to another year. Check with ford to see if the computer can be reprogramed.
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Old 05-11-2015, 12:01 PM   #7
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My suggestion would be to drive on gravel and apply the brakes. If only one wheel skids, then probably that one wheel has contaminated brake linings. If all the wheels skid, then there is something going on with the adjustment of the brake controller.
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Old 05-11-2015, 12:17 PM   #8
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How tight did you adjust the brakes? Did you adjust when reinstalling the drum and possibly over tighten them. That would have them grabbing sooner than orginally.
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Old 05-11-2015, 01:31 PM   #9
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These are Dexter Axle's Nev-R-Adjust brakes where you do not adjust after the initial adjustment (it adjusts automatically).
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Old 05-11-2015, 01:44 PM   #10
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Quote:
Originally Posted by Keith C View Post
These are Dexter Axle's Nev-R-Adjust brakes where you do not adjust after the initial adjustment (it adjusts automatically).
Right, just wondering if they might be too tight. Being they were apart it's possible that they need to be adjusted to just rubbing (initial). I would jack one wheel up and see how it spins. They will only tighten and not loosen on the never adjust.
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