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TOPIC: Yanky Iron Fix II

Yanky Iron Fix II 01 Jun 2020 19:33 #210964

  • 235mack
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If you look hard enough, You will see that the axle box on the wheel has moved allowing the wheel to slip down insde the rail and by the looks has only worn the face of the wheel, But ISTBC.

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Yanky Iron Fix II 01 Jun 2020 20:22 #210968

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Here U go













Not an April Fool's joke. This broken wheel occurred on the BN east of Orin Jct. heading toward Guernsey, WY.

Track speed is 50 mph. The hopper remained upright. Proof that the ASF three-piece truck can hold up to any punishment!


Thanx to the picture taker
U kno hoo U R

cya
OF ALL THE THINGS EYE MISS ................. EYE MISS MY MIND THE MOST

There's more WORTH in KENWORTH
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Yanky Iron Fix II 01 Jun 2020 20:48 #210969

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Swishy wrote: gr8 pix guys
keep m cumm n


[img]https://scontent.fmel8-1.fna.fbcdn.net/v/t1.0- 9/96081978_10158478720047990_4945527465498902528_n.jpg?_nc_cat=102&_nc_sid=ca434c&_nc_ohc=BAmp8GkLYRYAX_28bfB&_nc_ht=scontent.fmel8-1.fna&oh=efcb6abb89ccee90b6a73fcaa5cd42b6&oe=5EF89880












Din kno trains get flat tyres




LOL
WotSezU?
cya


Looks like a circus truck.

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Yanky Iron Fix II 02 Jun 2020 07:31 #210978

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Yeah, I believe it happened, but don't understand how. If both wheels are fixed to one solid axle as in the pictures, how come one wheel was able to turn and not wear out and the other is totally locked up and cactus?

I know I'm a bit old and feeble, so please someone help me to understand. I can't sleep wondering about it. LOL

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Yanky Iron Fix II 02 Jun 2020 08:21 #210979

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Wee Allis
gudday m8

me 2 can B old n feeble .......... depending wot day tiz

May B ..... jist may B
the wheel iz heated n shrunk fit to the axle
this way wen FU occurs .... heat ...... remove offendin wheel n slip nother on
th@ way they aint loozen the hole wheel n axle set up
Butt
there again
wodda eye kno


WotSezU?
cya
OF ALL THE THINGS EYE MISS ................. EYE MISS MY MIND THE MOST

There's more WORTH in KENWORTH

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Yanky Iron Fix II 02 Jun 2020 11:24 #210986

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wee-allis wrote: Yeah, I believe it happened, but don't understand how. If both wheels are fixed to one solid axle as in the pictures, how come one wheel was able to turn and not wear out and the other is totally locked up and cactus
I know I'm a bit old and feeble, so please someone help me to understand. I can't sleep wondering about it. LOL


If you look at this picture I just borrowed from Swishy it might help. I will explain below:

What appears to have happened is:
1) the near side wheel had a catastrophic failure and dumped about 1/3 of itself beside the track. (it could be a km or so back in the direction of travel)
2) the wheel centre isn't hardened but the tyre that is shrunk on is
3) some wheel centres have a lip on the flange side (or inside) to do a couple of things such as make it obvious if you fit the wheel backwards on the axle and to stop the tyre sliding right over the wheel when it is fitted. What you are seeing is that raised bit not the actual flange.
4) the axle would have stopped rotating and the large flat area on the broken wheel has started to melt / wear away.
5) when you measure up the wheel and tyre on the other side you will find it has a flat spot but as the tyre is hardened steel it hasn't worn to the same extent as the softer wheel centre.
6) as the "good" wheel was dragged on an unusual angle only the rail side of the flange and that side of the tyre would have been touching the rail the wheel wouldn't have been touching the rail as the fixed axle would have lifted the outside of the wheel off the rail
7) the picture below shows the outside of the wheel and tyre touching the rail. given the angle of the axle and the fact the wheel would be 90 degrees to it the implication is there is wear on the inside, not visible to the camera.


An analogy of the good wheel situation in a trucking context would be an underinflated inside tyre on a set of duals looking good when the trailer is empty but put a load on and it soon shows up the issue . In this case the outside of the wheel looks like the outside tyre on the dual wheels. the dodgy inside wheel is the flange side.

Depending how deep the damage is on the "good wheel" it will either be the tyre turned, the wheel turned and a new tyre fitted or the whole axle sent to scrap.

I hope this helps
Hiding in the shed covered in grease and muck - want a coffee?
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Last edit: by bparo.

Yanky Iron Fix II 02 Jun 2020 19:00 #211004

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Thanks fellas,

I think I've got it. The worn out wheel spat the hardened tyre off, probably after the bearing seized, which caused the wheel to stop rotating, wearing out the softer cast wheel. The opposite wheel still had it's tyre on, so just skidded along the rail, getting hot as seen in the colour.

I knew that.. Gees, I'm not stupid as she recons.

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