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| Broken axle https://www.rypn.org/forums/viewtopic.php?f=1&t=38731 |
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| Author: | Pegasuspinto [ Thu Nov 05, 2015 9:14 pm ] |
| Post subject: | Broken axle |
anyone know anything about this? https://drive.google.com/file/d/0B6iVWv_1-kXhV2FHT2tuTml0dHc/view |
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| Author: | dinwitty [ Thu Nov 05, 2015 9:44 pm ] |
| Post subject: | Re: Broken axle |
thats not the bluepeter slip is it? Engineer couldnt control slipping as engine went into high slip and did siderod and piston damage. |
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| Author: | Pegasuspinto [ Thu Nov 05, 2015 10:02 pm ] |
| Post subject: | Re: Broken axle |
The Blue Peter slip was MUCH more destructive, the running gear was shattered, frankly they are lucky they didn't push a rod into the boiler. The engineer was also injured in that one. Blue Peter slip: https://www.youtube.com/watch?v=YjsNbzg1UaI Blue Peter also happened over 20 years ago. This new video appears to only be a few weeks old at most. |
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| Author: | Alexander D. Mitchell IV [ Thu Nov 05, 2015 10:25 pm ] |
| Post subject: | Re: Broken axle |
The loco is New Zealand Railways class Ab 4-6-2 663: http://mainlinesteam.co.nz/ab663.html From the owners' news page: Quote: Friday 6 November 2015. Recently on return from the Marklin excursion Ab663 broke a driving wheel axle while shunting carriages in our Plimmerton Yard. We are currently trying to determine the cause of this as it is a rare event and in fact is the first axle that we have broken on anything in all our years of operation. The locomotive did not derail and no one was injured. We are fortunate that we do have a spare axle for this locomotive. http://mainlinesteam.co.nz/news.html |
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| Author: | Howard P. [ Thu Nov 05, 2015 11:27 pm ] |
| Post subject: | Re: Broken axle |
I seem to recall a broken axle on preserved US steam power: Former Mississippian 2-8-0 #77 broke a driving axle on a mainline trip during the early 70s, on the Southern Railway? And a crankpin: while operating on Strasburg, PRR 4-4-0 #1223 broke a main pin. Did I remember those correctly? Howard P. Magnaflux, CT |
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| Author: | tomgears [ Fri Nov 06, 2015 7:59 am ] |
| Post subject: | Re: Broken axle |
It is pretty amazing they have a spare axle sitting around. Not many US tourist railroads can say that. I remember seeing PRR No. 1223 with broken crankpins around 1982. |
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| Author: | eze240 [ Fri Nov 06, 2015 8:42 am ] |
| Post subject: | Re: Broken axle |
The 12 at Georgetown loop broke a driver axle back in about 2007.....if I remember correctly it was said to be caused by someone possibly dropping the wheel set, probably years earlier, which caused a small unnoticed crack. The picture I saw showed it had taken quite awhile to crack thru, finally breaking completely when the crack was around 3/4 thru.... I've also seen a driver pin come loose and be replaced within the last year on another loco......that one was wear related on a repair probably done when the engine was still in regular service... As equipment gets older, some things you wouldn't expect to wear out will.... eventually we will lose the ability to make or repair some things, probably already have.... |
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| Author: | soups [ Fri Nov 06, 2015 8:56 am ] |
| Post subject: | Re: Broken axle |
Pegasuspinto wrote: The Blue Peter slip was MUCH more destructive, the running gear was shattered, frankly they are lucky they didn't push a rod into the boiler. The engineer was also injured in that one. Blue Peter slip: https://www.youtube.com/watch?v=YjsNbzg1UaI Blue Peter also happened over 20 years ago. This new video appears to only be a few weeks old at most. Here's a similar slipping event, thankfully without the destructive results. Better video than the blue peter event. https://www.youtube.com/watch?v=Eb8uWexXQyM |
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| Author: | Kelly Anderson [ Fri Nov 06, 2015 9:49 am ] |
| Post subject: | Re: Broken axle |
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| Author: | QJdriver [ Fri Nov 06, 2015 10:50 am ] |
| Post subject: | Re: Broken axle |
Is that the same NZRys 4-6-2 that they used for the Kingston Flyer ??? They converted that one to roller bearing drivers a few years ago... |
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| Author: | 70000 [ Fri Nov 06, 2015 11:09 am ] |
| Post subject: | Re: Broken axle |
QJdriver wrote: Is that the same NZRys 4-6-2 that they used for the Kingston Flyer ??? They converted that one to roller bearing drivers a few years ago... The Kingston Flyer has AB locos #778 & #795 based there - not the one featured here. |
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| Author: | Les Beckman [ Fri Nov 06, 2015 11:46 am ] |
| Post subject: | Re: Broken axle |
soups wrote: Here's a similar slipping event, thankfully without the destructive results. Better video than the blue peter event. https://www.youtube.com/watch?v=Eb8uWexXQyM Boy, I'm confused about the slipping of #46229 "Duchess of Hamilton" in this video. After the event at the Dent station, she easily leaves the depot with her train. Why did the event happen in the first place? Seems as if the engineer (driver?) just opened up the throttle and didn't shut it off, but I'm far from an expert. Can someone from England please advise? Thanks! Les |
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| Author: | Dave [ Fri Nov 06, 2015 12:39 pm ] |
| Post subject: | Re: Broken axle |
Kelly Anderson wrote: I read that #12’s failure was attributed to the journal being built up with weld during a previous restoration. The axles were welded, but I don't think it was building up the journals, but the installation of hub liners. I wasn't there when it happened, but had to clean up that mess by remote control the following spring - the wheelsets had been removed to D&SNGRR shops, and I was in Silver Plume. Interesting thing occurred during that process: even axles that weren't welded were supposedlycondemned due to ultrasound tests results - nobody had removed the paint from the hubs and noticed the axles were keyed to the centers. It was the keyways responsible for the bad NDT results - moral, always remove the paint before testing - even the D&S guys, with all their experience, missed that one......... The re-restoration of the 12 was contracted to a vendor in the northeast, and subsequently completed. All the welded axles were replaced. So began a season that was far more "interesting" than usual. |
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| Author: | 70000 [ Fri Nov 06, 2015 12:51 pm ] |
| Post subject: | Re: Broken axle |
Les Beckman wrote: soups wrote: Here's a similar slipping event, thankfully without the destructive results. Better video than the blue peter event. https://www.youtube.com/watch?v=Eb8uWexXQyM Boy, I'm confused about the slipping of #46229 "Duchess of Hamilton" in this video. After the event at the Dent station, she easily leaves the depot with her train. Why did the event happen in the first place? Seems as if the engineer (driver?) just opened up the throttle and didn't shut it off, but I'm far from an expert. Can someone from England please advise? Thanks! Les I can't recall that incident - mind you it is 32 years ago - and don't have any copies of the magazines that may have reported it at the time. Some people appear to have made suggestions as to what happened in the comments under the video itself. At that time, the loco would have been worked by British Rail crews, and given it was only 15 years after the end of BR steam in that area, it must have been something fairly unusual that caused the slip as original steam crews would have been used on the train. I dread to think the response if that was to happen on todays railway..... |
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| Author: | Kelly Anderson [ Fri Nov 06, 2015 12:59 pm ] |
| Post subject: | Re: Broken axle |
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