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 > Near tragic event!!

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noteven

Turtle Island

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Posted: 09/26/20 06:45pm Link  |  Quote  |  Print  |  Notify Moderator

Likes to tow wrote:

.....
I don't believe I was running at speed when the wheel came off. I may have been in a tight turn in an intersection or turning onto a different road. The plastic dressing around the wheel well was totally undamaged. Had the tire came off at highway speed I think it would have damaged it in some way.


I think you are correct - a wheel off at speed should leave some tell tale marks inside the wheel well or around it like you said...

someone didn't need a spare while your rig was unattended someplace?

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Huntington WV

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Posted: 09/26/20 06:53pm Link  |  Quote  |  Print  |  Notify Moderator

This is a great video showing an exact representation of what my wheel hub looked like. https://www.youtube.com/watch?v=mfpZP9vw8ak

garyp4951

TN

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Posted: 09/26/20 08:15pm Link  |  Quote  |  Print  |  Notify Moderator

https://www.youtube.com/watch?v=mfpZP9vw8ak

valhalla360

No paticular place.

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Posted: 09/27/20 05:35am Link  |  Quote  |  Print  |  Notify Moderator

Likes to tow wrote:

I don't believe I was running at speed when the wheel came off. I may have been in a tight turn in an intersection or turning onto a different road. The plastic dressing around the wheel well was totally undamaged. Had the tire came off at highway speed I think it would have damaged it in some way.


Decades ago, my Dad lost a wheel going down I-75...how did he notice...it went rolling by on a downhill. Luckly no one hurt.

No damage to the skirting. We figure when it came off, it was rolling at the same speed as the trailer. As long as it got clear before it took a bounce, make sense that there would be no damage.

If you were on an uphill, you likely would have pulled away from it.

TPMS are good but I also check the tires in the mirrors every few minutes (especially after a hard bump). I will admit, I don't put a torque wrench on them every travel day but I do a walk around and check the pressure and at stops, I feel the hubs for heat.

I'm with some of the others wondering how you didn't notice until you went inside? Backing into a site, I watch the tires to plot my turning line...then of course when I go to chock the wheels, I think I would notice.


Tammy & Mike
Ford F250 V10
2021 Gray Wolf
Gemini Catamaran 34'
Full Time spliting time between boat and 5er


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Huntington WV

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Posted: 09/27/20 06:17am Link  |  Quote  |  Print  |  Notify Moderator

valhalla360 wrote:

Likes to tow wrote:

I don't believe I was running at speed when the wheel came off. I may have been in a tight turn in an intersection or turning onto a different road. The plastic dressing around the wheel well was totally undamaged. Had the tire came off at highway speed I think it would have damaged it in some way.


Decades ago, my Dad lost a wheel going down I-75...how did he notice...it went rolling by on a downhill. Luckly no one hurt.

No damage to the skirting. We figure when it came off, it was rolling at the same speed as the trailer. As long as it got clear before it took a bounce, make sense that there would be no damage.

If you were on an uphill, you likely would have pulled away from it.

TPMS are good but I also check the tires in the mirrors every few minutes (especially after a hard bump). I will admit, I don't put a torque wrench on them every travel day but I do a walk around and check the pressure and at stops, I feel the hubs for heat.

I'm with some of the others wondering how you didn't notice until you went inside? Backing into a site, I watch the tires to plot my turning line...then of course when I go to chock the wheels, I think I would notice.


My 5th wheel has the auto leveling feature and the control for it is on the driver side (left) of the trailer. When backing in I was looking mostly on that side of the trailer due to the angle of the campsite plus the driver side has better visability. After exiting the truck I raised the door on the left side (driver) and plugged into AC, then pushed the up button on the control to raise the king pin just off the hitch, pulled the lever, pulled forward enough to allow the auto level feature to have clearance. When it was all finished I then walked around to the curb side (righ) of the trailer to enter. The door is just in front of the front axle. I looked down and was in total shock for a period of time! The cammpsite is totally level, did not need to chock tires.

Lynnmor

Red Lion

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Posted: 09/27/20 06:26am Link  |  Quote  |  Print  |  Notify Moderator

Likes to tow wrote:

The Dexter chart I COPIED from the Internet said to torque first to 60lbs then do it all again to get them at 90 to 120lbs. That's a 30 lb variance and looks like to me this makes it not overly critical. Just get them tight. I'm doing 90 from here on. However I believe the most important part of torquing wheel lug nuts to to do it again after a few miles and then check it regularly like you would tire pressure. Like one poster mentioned, the heating and cooling of brake drums may make this more critical.

When I'm doing an engine overhaul I always go exactly as the manual says and that is a specific torque setting.......not a big variation. Rod bearings and cylinder head bolts have a specific recommendation. Apparently wheels do not.


Read page 73 & 74. Dexter manual

Steel, aluminum and aluminum with inserts all may be different, so go by the wheel manufacturers specifications.





12th Man Fan

Flower Mound , Texas

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Posted: 09/27/20 06:47am Link  |  Quote  |  Print  |  Notify Moderator

For those of you who think a TPMS will tell you if a wheel comes of, I think you are mistaken. I am not positive but I don't think they will alarm if this happens.

I have the TST 507 and I can disconnect from the RV and drive away and the monitor will keep displaying the last reading of when it was connected. This makes me believe you could lose the whole RV and not know it.


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Huntington WV

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Posted: 09/27/20 06:53am Link  |  Quote  |  Print  |  Notify Moderator

Still wrestling with this event and analyzing the potential problem. All of this for the benefit of anyone who reads this post and will communicate it to others who tow trailers.....any kind of trailer including boats and utility. Many good comments have been made which have given me things to consider.

About the lug nuts being over-tightened. I'm doubting this and here's why. I took my torque wrench and set it in loosen mode at 100 lbs then increased it to the point at which in the loosen mode it would click when loosening the nuts. None began to loosen at more than 120 lbs. Most between 100 AND 110. In my opinion none were overly tight to cause seperation of the stud. I would think that would be well over that amount, maybe 150+? ? Last summer when doing annual maintenance I just apparently did not tighten this particular wheel enough and through the thousands of miles in the past year it worked loose due to brake drums getting hot in the Rockies and the fact this trailer has aluminum rims. I think steel brake drums and aluminum wheels would expand and contact at different rates. Now combine that with the fact I never checked lug nuts after the initial first 50 miles nor at any time since. They worked loose and continued to work loose until just recently the wheel apparently was vibrating on the drum!! When they let go they all sheared off even with the drum. Metal fatigue right at that point.

So beware of proper lug nut maintenance along with your brakes, bearing seals and grease. Tighten lug nuts good and check again after a few miles of travel when you have removed a tire. Use a torque wrench set at manufacturers recommendation. I was so fortunate to not have had a bad accident running on one tire without my being aware of it. Thankfully the tire was on the curb side and rolled away without striking a person or property.

BobsYourUncle

Calgary Alberta Canada

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Posted: 09/27/20 07:53am Link  |  Quote  |  Print  |  Notify Moderator

12th Man Fan wrote:

For those of you who think a TPMS will tell you if a wheel comes of, I think you are mistaken. I am not positive but I don't think they will alarm if this happens.

I have the TST 507 and I can disconnect from the RV and drive away and the monitor will keep displaying the last reading of when it was connected. This makes me believe you could lose the whole RV and not know it.

I don't own a TPMS, but I would think you would be alerted when the unit detects the loss of signal from one wheel.
Because you are still operating, driving down the road, a signal loss should be part of the overall function.


2007 GMC 3500 dually ext. cab 4X4 LBZ
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2007 Pacific Coachworks Tango 306RLSS - 32'


RCMAN46

NorthWest

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Posted: 09/27/20 09:39am Link  |  Quote  |  Print  |  Notify Moderator

BobsYourUncle wrote:

12th Man Fan wrote:

For those of you who think a TPMS will tell you if a wheel comes of, I think you are mistaken. I am not positive but I don't think they will alarm if this happens.

I have the TST 507 and I can disconnect from the RV and drive away and the monitor will keep displaying the last reading of when it was connected. This makes me believe you could lose the whole RV and not know it.

I don't own a TPMS, but I would think you would be alerted when the unit detects the loss of signal from one wheel.
Because you are still operating, driving down the road, a signal loss should be part of the overall function.


With the TST 507 it will be about one hour before you will get a signal loss alarm. This has been documented many times on this forum over the last 5 years or so.

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