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Old 06-13-2016, 08:13 PM   #15
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That's my job

Well put
Weeellll, thank ya! A man has to know his limitations and possibilities... 😛
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Old 02-18-2017, 01:47 PM   #16
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Originally Posted by cwf View Post

...
It has taken me a few days... About 15 hours working slow and carefully to ensure all could be repaired safely.. (in my workshop to figure approach, remove old bearings...cleanand (and cleaned...see above), hand tool recondition shafts.. Locate parts (hardest was sourcing the "small seal)... start reassembly.
...
Channing,

I am now faced with essentially the same problem, on a hitch purchased used from the original owner. One grease seal appeared to not have been pressed in. No marks on the perimeter of the seal. It was loose between the plate and the arm.

How did you recondition the shafts? I am going to have to do that, or maybe even replace at least one of mine. It is pretty bad.

Al
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Old 02-19-2017, 01:35 PM   #17
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Al, Great to speak you about your PP rebuild.. Let me know!
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Old 02-19-2017, 02:11 PM   #18
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Al, Great to speak you about your PP rebuild.. Let me know!
Channing,
Thanks for taking the time to talk me through this. I think I am on a success path now.

Apparently Sean incorporated your ideas into the hitch I bought. The edges of those spacers are chamfered to protect the grease seals.

Al
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Old 02-19-2017, 07:14 PM   #19
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My rebuild experience

First a big thank you to Channing (cwf) for spending quite a bit of time with me on the phone to talk me through the process.

I mounted the hitch in the receiver on my truck to serve as a stand. I rotated the hitch 90 degrees to give good access to the top and bottom and to eliminate the potential for heavy parts to drop to the floor. I removed the bearings on the pivot assembly (the part with the ball) first so I could take that off first. Then I removed the bearings on the hitch assembly (the part that the stinger goes into).

Click image for larger version

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As I removed the bearings I put them in line so I could take a picture to ensure that I put it back together the right way.

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I cleaned up all the bearings, but since 4 of them were bad, this was probably an unnecessary step as I plan to replace all eight. This did, however allow me to confirm the part numbers I found on another brand's forum where a member reported rebuilding his hitch.

The next step was to assess the condition of the shafts. After removal and cleaning I polished the shafts with emery cloth strips and ultimately with valve grinding compound as suggested by Channing. My take on it was:
1. Coarse emery cloth with oil
2. Medium emery cloth with oil
3. Fine emery cloth with oil
4. Back side of fine emery cloth with valve grinding compound.
Here are before (one shaft) and after (the other shaft) pictures:

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While the shaft has a lot of pitting, the area where the bearings inner sleeves contact it looks pretty good. I will turn the bushings around to allow the grease seals to bear on good material. Now I have to order all bearings, races, seals, and caps and put it back together.

Al
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Old 02-21-2017, 11:52 AM   #20
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Too many moving parts. IMO, a $2500 hitch shouldn't need new bearings for a lifetime!
Killing a mosquito with a sledgehammer.
Next time a UPS semi passes you (with two trailers) look and see how the second trailer is connected. It's a hook.
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Old 02-21-2017, 12:25 PM   #21
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Doesn't that second trailer have an independent front axle? Not quite an apple to apple comparison to a towed TT?
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Old 02-21-2017, 03:07 PM   #22
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Fifth Wheel Dolly...

YUP. UPS trucks use a separate trailer dolly with a standard fifth wheel setup on top to connect a second trailer. Nothing at all similar to an Airstream or other travel trailer ball hitch setup.

Besides, not to dash cold water on this, the ProPride setup is the ONLY way I could tow an Airstream with my smallish Toyota Tacoma safely...I've tried it with another hitch setup--$2500 worth of peace of mind and enhanced safety is worth every dime of what I spent. Especially with family and dogs aboard the TV.
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Old 02-27-2017, 10:40 AM   #23
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This is not a reassuring Thread for would be ProPride owners...I would love to hear from Sean that this issue is completely resolved. Even with a lifetime warrantee, the shipping $$ and hassle would be painful.
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Old 02-27-2017, 10:49 AM   #24
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Yup, water intrusion is an issue for both PPP brands. I need to pop mine this spring and inspect. I rebuilt my used Hensley when I got it, just because it was used and an unknown quantity. (sandblasted and painted too). Although there was some evidence of past moisture intrusion, it wasn't bad at all and didn't require any part (other than seals) replacement. I think an application of sealer on the top caps would minimize/eliminate the water intrusion. I do also keep the hitch covered when not on use.
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Old 02-27-2017, 11:14 AM   #25
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I do not have a Pro Pride. Have been wondering if I need one. The thing that bothers be in this thread is the part about the Airstream swaying so badly when the OP re hitched. And then working perfectly with a 1" change in hitch height. How can this be? Why does the hitch not "eliminate sway" with a one inch dip in the nose? How many of us are able to get the hitch height perfect the first time? And the OP sounds experienced and must have made the first adjustment because it seem correct? All in all I am baffled in this performance report. I thought the hitch eliminated sway?
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Old 02-28-2017, 11:22 AM   #26
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I do not have a Pro Pride. Have been wondering if I need one. The thing that bothers be in this thread is the part about the Airstream swaying so badly when the OP re hitched. And then working perfectly with a 1" change in hitch height. How can this be? Why does the hitch not "eliminate sway" with a one inch dip in the nose? How many of us are able to get the hitch height perfect the first time? And the OP sounds experienced and must have made the first adjustment because it seem correct? All in all I am baffled in this performance report. I thought the hitch eliminated sway?
Good questions. A trailer and TV must be properly set up. Perhaps I misused the word "sway"... standard trailer sway is an articulation between TV and trailer. In my case, the whole rig swayed. It did that because, in hindsight I measured the AS and TV incorrectly.

You see, as the ProPride was initially installed, all bearings, clearances, etc were "perfect". 'Towed great. As the ProPride wore, I adjusted to compensate... because I thought I was on flat ground when measuring... so measurements varied between checks. I was checking g because the hitch/unhitch angles seemed to vary.. they were because of the wear!

So, when I completed repair I measured again... but again, on unlevel ground. So, totally my fault.

The sway was due to a significant " nose low" on the AS...then when it was hit by irregular side wind from overpass, trouble started.

Hope this clears up your questions.
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Old 02-28-2017, 11:55 AM   #27
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Thanks for taking the time to respond. Yes, I have been told that nose down is a bad configuration for a multiple axle Airstream. I did take the term "sway" literally but I am sure there are different things that can happen. Sounds like the hitch might have been doing its job but fighting a really bad setup.
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Old 02-28-2017, 07:38 PM   #28
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Thanks for taking the time to respond. Yes, I have been told that nose down is a bad configuration for a multiple axle Airstream. I did take the term "sway" literally but I am sure there are different things that can happen. Sounds like the hitch might have been doing its job but fighting a really bad setup.

Yup...yessiree... that was my fault!!!
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