Exploding Earthmover Tire

[SubLGT]

Here is a video from Kentools showing an earthmover tire and 3 piece wheel exploding in a containment cage at 150 psi. I can see how this can kill a person.

http://www.youtube.com/watch?v=HANwJp8Z5mc&feature=plcp

 

[ClutchDisc]

Wow!

 

[Oil Changer]

I was in the earth moving business. Had a buddy running a scraper. These can hook on to each other and combine engine power. He was the back machine. The scraper he was hooked on to blew the left rear tire.

Big chunck of tire came flying off, hit his hood (blew the hood off), hit the left pillar which acts as a roll cage/window support, came through the glass and hit him on the left side of his head, knocking him unconscious.

The scraper came unhooked and rolled backwards out of control down the hill they were climbing while his body bounced around the cab. He was wearing a seatbelt otherwise he would have been ejected.

Lost some scalp/hair, vision in his left eye, sensative to light and noise, suffers severe headaches, walks funny, has problems with his arm (tire hit his shoulder area too) and lost some IQ points.

Last I heard, he drinks alot and the company is still fighting his claim.

Those things are dangerous. That's why I won't drive behind semis on the road either.

 

[SteveSRT8]

^^^You took the words out of my mouth!

Think about this vid next time you sit next to a semi on the street!

 

[JimPghPA]

Years ago a welder working for J&L steel put a metal patch on a leak of a large tank. He inspected the patch for leaks by having someone apply air pressure to the tank while he looked for leaks. The patch blew off and hit him in the chest. There was a cement wall behind him, and his body had no where to go. The patch hitting him in the chest combined with the cement wall behind him crushed him and killed him.

Moral of story, check tanks for leaks with water under pressure because water is non-compressible and as soon as it leaks out the pressure is down to zero.

If the welder had checked the tank with water he would not have been harmed.

 

[Kruse]

Originally Posted By: SubLGT


http://www.youtube.com/watch?v=HANwJp8Z5mc&feature=plcp


Time to buy some new shorts....
True story: There is a truck stop near me that does repair on the old tube-type tires that have the two- (or more) piece rims. For those who are not familiar with these, they can be very dangerous and the percentage of these that blow apart during inflation is much higher than tubeless truck tires. Anyway, they had a new hire who was doing his first one and when he was ready to inflate the tire, the boss pointed to the safety cage and told him to use it as a safety precaution. The next time the boss checked on the guy's progress, he saw that the kid was inflating the tire. However, the tire was on the OUTSIDE of the cage. The rookie was on the INSIDE of the cage.

 

[JHZR2]

Scary stuff. Only very few psi can kill you in many ways. Something like a tire is a ton (literally) of pressure.

 

[Shannow]

Was next to a semi at 40MPH when a tyre blew (inside on a dual wheel trailer), and seriously not pretty.

Local tyre service killed a new guy when a vehicle split rim blew, made the news for a day, then went away, no mention of any WHS stuff, which has me amazed, and wondering how many of these accidents occur and are parked every year.

Jim, pressure equipment has huge number of regs, and an external patch over a leak doesn't meet any of them...but you are correct, hydro testing only has the elasticity of the metal and water to provide energy.

 

[jjjxlr8]

reminds me of this one...
http://www.youtube.com/watch?v=KJRhJcYpCVA

 

[JimPghPA]

Originally Posted By: Shannow
Was next to a semi at 40MPH when a tyre blew (inside on a dual wheel trailer), and seriously not pretty.

Local tyre service killed a new guy when a vehicle split rim blew, made the news for a day, then went away, no mention of any WHS stuff, which has me amazed, and wondering how many of these accidents occur and are parked every year.

Jim, pressure equipment has huge number of regs, and an external patch over a leak doesn't meet any of them...but you are correct, hydro testing only has the elasticity of the metal and water to provide energy.


The tank that the welder put the patch on was not for any kind of a pressurized system. I remember seeing that tank from the road. It was similar to a heating oil tank with the half round top and bottom, and flat sides, only it was bigger than the common heating oil tanks used for houses. I think it normally stored some fluid, but I am not sure.

One of the things I heard is that the amount of pressure applied was not that great, but when multiplied by the number of square inches in the patch, the force was considerable.

 

[Jarlaxle]

Originally Posted By: Kruse
Originally Posted By: SubLGT


http://www.youtube.com/watch?v=HANwJp8Z5mc&feature=plcp


Time to buy some new shorts....
True story: There is a truck stop near me that does repair on the old tube-type tires that have the two- (or more) piece rims. For those who are not familiar with these, they can be very dangerous and the percentage of these that blow apart during inflation is much higher than tubeless truck tires. Anyway, they had a new hire who was doing his first one and when he was ready to inflate the tire, the boss pointed to the safety cage and told him to use it as a safety precaution. The next time the boss checked on the guy's progress, he saw that the kid was inflating the tire. However, the tire was on the OUTSIDE of the cage. The rookie was on the INSIDE of the cage.


I do not think he understood the "tire cage" concept here...

 

[heyu]

My grandparent was a truck mechanic for 2 different big volume companies,,He had alot of horror stories about the old style split rims and always made sure i never even stood next to a parked truck in his yard with those style rims either