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Old 06-22-2011, 09:56 AM   #11
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Question for you norty1,
when you measure the hub temperature, are all 4 hubs about the same temp?
The ones in the sun are 5 or so degrees hotter. I look more at the comparison of the two hubs on the same side. They can vary a little. If more, that's when I get concerned. They hardly are ever the exact same.

I just got a new rig and used the same method on the old one. Temps track about the same.
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Old 06-27-2011, 11:20 AM   #12
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Any chance the trailer could be high on the hitch? That would put more wieght on the rear axle and less on the front. Park it in a level place and see if your trailer is truely level.
This past weekend, I had a chance to check the trailer for level when hitched up. Sitting on level pavement, the front was down 1 inch, and the rear was up one inch, from a level condition. So, I raised the hitch head one bolt hole, to get the trailer as close as I can to level when hitched. I will see how it goes this weekend for a 120 mile round trip camping session.
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Old 06-29-2011, 09:31 PM   #13
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Wheel bearings

Hello David
Don't waste your time with this, the reason the rear hubs are warmer than the front is quite simple, the front axle has no brakes, while the rear does.
As a result you will have extra heat in the rear axle due to braking, that's all.
If they are too hot to touch then I would get the brakes checked out for adjustment or brake controller issue's. (controller set to high doing all the work stopping the tv and tt)
Now if you have been driving in the city stop and go for a while, they will be very hot, just like your vehicles brakes.
Hope this helps

Bob
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Old 06-30-2011, 07:57 AM   #14
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Hello David
Don't waste your time with this, the reason the rear hubs are warmer than the front is quite simple, the front axle has no brakes, while the rear does.
As a result you will have extra heat in the rear axle due to braking, that's all.
If they are too hot to touch then I would get the brakes checked out for adjustment or brake controller issue's. (controller set to high doing all the work stopping the tv and tt)
Now if you have been driving in the city stop and go for a while, they will be very hot, just like your vehicles brakes.
Hope this helps

Bob
A-ha, thank you for the info.
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Old 06-30-2011, 03:27 PM   #15
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Not on my rig.
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Old 07-04-2011, 10:45 AM   #16
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Not on my rig.
Not on my rig either.
I checked underneath, and there are brakes on all 4 wheels.

With the hitch height adjustment and matching WD adjustment now done, the trailer now tows level to the ground. I have to say, I like the feel of it towing this way. Could be that was the issue for bearing temperatures being slightly different.
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Old 07-04-2011, 08:10 PM   #17
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snip......Don't waste your time with this, the reason the rear hubs are warmer than the front is quite simple, the front axle has no brakes, while the rear does......snip
Bob,

It's been my understanding that all Jayco twin axle travel trailers have brakes on both axles. Just curious, what made you believe otherwise?
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Old 07-05-2011, 11:29 AM   #18
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Not sure if it's because we have the 29'... When the guy from the local brake shop came to replace our backing plates and pads, he did both front and back wheels. We have brakes on both axles.
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Old 07-05-2011, 11:56 AM   #19
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We also use a lazer themometer the temps are about 15 20 degrees over outside temps. We also have Pressure Pro for air pressure monitoring, funny to watch the pressure go up as we drive. Sometimes the pressure raises 10 to 14 PSI. The 14 was on a rough roads in Texas. Checking your bearing and brakes won't hurt and tends to my one feel better before a long trip.
Happy Camping Wayne
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Old 07-06-2011, 08:57 PM   #20
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Ours has brakes on all 4 axles. 2011 31RKS
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