How do I get this lug off?

[Utahclaimjumper]

 Someone along the way may have been over torquing them..>>>Dan ( Or under torquing them,)

[luvrbus]

This is the first time I had them break on the duals. All the other failures were on the front or bogeys.

That seldom happens on a Eagle usually it always the rear since the studs are so much smaller,over torqueing the wheels on the front and bogeys most of the time cost you a wheel Since you have Alcoa I would check the seat on the wheels they maybe worn out and the nut sinks too deep  into the wheel ,also check the bevel on the nut for a long time Alcoa had different bevels on wheels you can find the degree bevel stamped on the wheel >Alcoa outer nuts are thicker than the average lug nut and are more exspensive last I bought where around $4.00 each

[David Anderson]

I made over to Schwab on Monday. 3 more lugs were broken as he began removal. Wow I was close to a disastrous failure. Examining the broken pieces we could tell by the rust they were broken for a long time. The wheels were not damaged. I replaced all 10 and put it all together and back on my way.

[Jim Blackwood]

Nice tool.

Jim

[kyle4501]

Did you verify the stud standout was per Alcoa's spec of 1.31" to 1.44" ?

Mine were at 1.28", so I installed new studs to achieve enough stud standout so the inner nut was well supported under the outer nut. (I also got new inner nuts that were threaded deep enough that they did not bottom out on the stud.) 

I use a cordless drill adapted to a torque multiplier to remove the nuts without straining. I use the same setup to pre-tighten the nuts before I finish with a torque wrench.

[David Anderson]

Did you verify the stud standout was per Alcoa's spec of 1.31" to 1.44" ?

No I didn't. I assumed the place  I purchased them from 18 years ago did it all correctly. I new very little about buses and wheels then.   
Where do I measure the 1.31" from?  I assume you are talking about the stud length protruding out of the wheel drum?

[kyle4501]

Wheel stud protrusion is the distance from the surface the wheel mounts to to the end of the stud.

I went with 1.93" protrusion. I measured & re measured. Then to be sure, I ran the inner nut down on the stud & counted total revolutions without the wheel & then again after the wheel was installed to verify the nut wasn't bottoming out - I had an extra couple of turns left.

I don't trust tire stores - too much emphasis is placed on getting it done quickly & not enough emphasis on quality . . . . I've seen too many instances of putting the nuts on with an impact & stripping the threads. . .