All lug-nuts snapped. Wheel came off?

Over-torqued...rust, piss poor maintenance. Driver error in not checking lug nuts during pre-trip...Hot brakes and rain ? No, wishful thinking..And I doubt the LUG NUTS "snapped in half"....Don't you mean the WHEEL STUDS ? You know those things the lug nuts SCREW onto ..?? And for the "jakes to do 95% of the braking "...you know this how ??

 

Over torqued...or left loose...either one will lose a wheel eventually.

 

Driver error..bad pre-trip..

 

Over tightened, Theres no way a driver can tell if the lugs are over tightened on a pretrip. Bad maintenace.

 

Most times this is caused by LOOSE lug nuts, no pre trip. Was a common problem when we had 2 piece lug nuts. Did this truck have uni mount wheels or old style 2 piece lugs?

 

And i laugh at myself every time i see this quistion in the haz mat test, if the wheel is hot, the driver must take the wheel off and put in the safe place, one if that wheel is that hot , there no way i'm gonna manhandle a hot wheel, two, i dont have the proper tools too take a wheel off, anyway back too the quistion at hand , two erro's here, one is a fail'ed pretrip , mayby, you can do a top nocth pre-trip that morning, then that afternoon the wheel fall's off, due too bad roads , ect, truck shake and stuff so bad sometimes, it could be bad maitance, but if this was a mega carrier i dought it, sound's like they didnt use the right color stick's on the wheel stud, a color stick is a pre determine color for tork on a tork wrench , and might got them to tight , stressing the wheel stud, now i go find my big book , too learn how too spell again , so sorry about that

 

This happens when shops do not use proper tightening technique when torquing a wheel. That means using a "torque wrench." Most shops simply use the air impact gun to tighten the lug nuts onto the studs which could actually stretch the stud depending on the guns setting.

There is also a statement on tire repair work orders recommending the driver stop 50 to 100 miles down the road and have another shop check the lug nuts and tighten as needed.

The only way a driver would (or could) detect a loose lug nut is if he sees rust streaks on the rim from the stud holes. If you see rust streaks then you should have the wheel removed by the shop and the studs inspected carefully for stretched threads or cracks. Have the wheel replaced and be sure they use a torque wrench to tighten the lug nuts uniformly.

All it takes for a wheel to come off is to have 1 stud fail. Any movement between the rim and the studs will cause the other studs to fail until all studs finally break and then the wheel goes flying.

 

Was the holes in the wheel wallowered out? Loose nuts. Snapped clean over tightened. Loose nuts are detectable when driving and pre-trip.

 

90% of the time when this happens you had loss lug nuts, the flexing broke the ones that weren't