3 Sheared Lugs

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  #11  
Old 07-04-2007, 02:30 AM
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Fossy wrote:

Could be that these lugs were really never tightened correctly? It happens! If the tireman gets in a big hurry, they will misalign the wheel (even slightly will do it) the lugs on one side are tight as a banjo string, the others are loose, a few miles and a few real wonky areas and the stress just causes them to pop.
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Yes in deed. You nailed it Fozzy. Talked to the powers to be yesterday and that's kind of what they said about the fleet vendor.Hopefully the tire guy wasn't thrown under the bus that left yesterday. He's always swamped and can't do enough for you. Looks like we are getting rid of wheel covers too as they are a receipe for disaster IMO. Looks ain't everything and proper pretirps are in place for a reason.

ironeagle2006 - Yes they changed out all of the studs just in case they were defective and used a press plus putting new tires on so we should get her back on the 5th.

Haste makes waste..... Lets not meet by accident.
Happy 4th to you all.
 
  #12  
Old 07-04-2007, 04:20 AM
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oops-never mind what I said-I just noticed you said it was a front steer :P
 
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  #13  
Old 07-06-2007, 11:26 PM
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What kind of truck do you have where a broken lug rolls around INSIDE the wheel cover. Either the lugs are in a small pattern or your wheel coner is the size of the tire. I am being serious so please explain this.
 
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  #14  
Old 07-07-2007, 06:33 AM
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Originally Posted by Jumbo
What kind of truck do you have where a broken lug rolls around INSIDE the wheel cover. Either the lugs are in a small pattern or your wheel coner is the size of the tire. I am being serious so please explain this.
I'm under the impression that he had a set of these on there:

http://www.realwheels.com/22inch.html
 
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  #15  
Old 07-08-2007, 11:19 AM
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Jumbo,

To remove them it only takes a minute. You loosen 2 phillips screws that are attached to a J hook exposing 10 Lugs. Someone was actually standing next to the truck as it pulled out and heard the noise. Out of the three, only one stud w nut attached was still inside the cover.Wasn't loud enough to hear inside cab and 3 missing lugs (all next to each other)didn't cause wheel wobble,shimmy or shake.


Splitshifter:

Yes, You are correct. They are chrome 22.5 wheel covers.
 
  #16  
Old 07-09-2007, 01:51 PM
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Originally Posted by Kurbski
Jumbo,

To remove them it only takes a minute. You loosen 2 phillips screws that are attached to a J hook exposing 10 Lugs. Someone was actually standing next to the truck as it pulled out and heard the noise. Out of the three, only one stud w nut attached was still inside the cover.Wasn't loud enough to hear inside cab and 3 missing lugs (all next to each other)didn't cause wheel wobble,shimmy or shake.


Splitshifter:

Yes, You are correct. They are chrome 22.5 wheel covers.
So do you take these off everyday so you can inspect the lugs or notice you have some broken off?
 
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  #17  
Old 07-10-2007, 11:37 AM
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Jumbo:
No, Because I am a supervisor and only needed an opinion about a mechanical problem which has been answered. But thanks for asking.
Attempted to upload some pictures after repairs.It's not working.
pictures are HUGE
 
  #18  
Old 07-12-2007, 12:44 PM
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Default Re: 3 Sheared Lugs

[quote="Splitshifter"]
Originally Posted by Kurbski
Today, one of my coworkers heard a "clunk,clunk,clunk" noise while moving our truck out of it's bay. Then came inside and said "we got a problem". So I go out and they removed the wheel cover from our left front tire. I see 3 out of 10 lugs sheared off with one rolling around in the cover.The three lugs were in sequence. Two studs were shiney, one was dirty. So one had been gone for a while. Im not naming names and will just say this. We have the best equipment money can buy and change out tires at 6/32, so maintenance is not a problem. I have never seen three lugs sheared off like this. No prior vibrations in the cab, damage to the wheel and it has not been in an accident.

So I am curious if anyone else has ever seen this type of a problem?
And what could have caused it?
Are they Unimount wheels?

I've seen a couple instances (on dump trucks)where all 10 studs have failed and wheels have come off.

How old is the truck?

Could be metal fatigue from repeated tire changing (some tire guys just love to overtorque the lug nuts).

If they're Unimounts, just hammer out all the studs with a good sized sledge, then put in all new studs and draw them into the hub by putting a nut on each stud and using an air impact wrench to tighten the nuts, which will "press" the studs into the hub holes. Then remove the nuts and install the drum and wheels.

Be sure to properly tighten the lug nuts.

No need to pull the hub to replace Unimount studs.

pull the hub, you're gonna have to pull it later to change wheel bearings anyhow...


Be sure to replace all 10 studs. If 3 have failed, the other 7 probably aren't far behind.[/quote

agreed
 
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  #19  
Old 07-12-2007, 01:25 PM
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Default Re: 3 Sheared Lugs

Originally Posted by Kurbski
Today, one of my coworkers heard a "clunk,clunk,clunk" noise while moving our truck out of it's bay. Then came inside and said "we got a problem". So I go out and they removed the wheel cover from our left front tire. I see 3 out of 10 lugs sheared off with one rolling around in the cover.The three lugs were in sequence. Two studs were shiney, one was dirty. So one had been gone for a while. Im not naming names and will just say this. We have the best equipment money can buy and change out tires at 6/32, so maintenance is not a problem. I have never seen three lugs sheared off like this. No prior vibrations in the cab, damage to the wheel and it has not been in an accident.

So I am curious if anyone else has ever seen this type of a problem?
And what could have caused it?
it was caused by improper torque; too little or too much

it is a known fact that when one wheel stud has broken, the 2 nearest studs should be replaced as well... due to the fact that while that stud was broken, those other 2 studs have carried an additional load

in your situation the stud that broke probably held on by one edge until the other 2 failed

replace all studs on that wheel-end, and the obvious; inspecting/re-torquing all the other wheel-ends
 
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  #20  
Old 07-12-2007, 11:20 PM
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Im not a mechanic and don't know what unimount's are?? I am assuming one piece rims/wheels...
The truck is back in service with 10 new Studs.

 

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