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Post by mlb53 on May 1, 2024 21:21:03 GMT
Last few days the Northern Line is showing minor delays all day due to a shortage of trains. Does anyone know what the issue is please.
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Post by t697 on May 2, 2024 19:14:11 GMT
Shoebeams I think.
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Post by straphanger on May 11, 2024 16:27:28 GMT
Do we have an idea of when this is going to be fixed? It's beginning to get very unpleasant in the rush hour.
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Post by xtmw on May 12, 2024 15:29:02 GMT
A shortage of parts for the damaged shoebeams is preventing trains from entering service. Let's just hope this dosen't get worse.
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imran
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Post by imran on May 12, 2024 15:40:13 GMT
Oh dear! It seems the train shortage that blighted the Central Line earlier this year is now spreading to the Northern Line! Just as TFL feared!
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DWS
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Post by DWS on May 12, 2024 16:03:36 GMT
How are the shoe beams becoming damaged, is it problems with the track or something else.
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Post by starlight73 on May 12, 2024 16:52:35 GMT
Oh dear! It seems the train shortage that blighted the Central Line earlier this year is now spreading to the Northern Line! Hopefully this is easier to fix than the central line shortage. The central line has had loads of “motor flashover”. This can only be repaired by replacing the motors. I’d hope cracked shoebeams are relatively easier to repair? |
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towerman
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Post by towerman on May 12, 2024 17:19:32 GMT
Don’t know about modern shoe beams,wooden ones were scrap once broken.
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class411
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Post by class411 on May 12, 2024 17:41:56 GMT
Can they not temporarily sacrifice one train and use its shoebeams to keep the others going?
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Chris M
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Post by Chris M on May 13, 2024 1:19:07 GMT
Can they not temporarily sacrifice one train and use its shoebeams to keep the others going? That might depend on what the specific issue with the shoebeam is and how interchangeable shoebeams are between different parts of the car - looking at photos it appears that the front and rear shoebeams on the leading car are not identical, so there are potentially up to four different designs on a single car (I have no idea if this is the case). If the damage is always to the same beam then a single train isn't that useful as a donor. |
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Post by spsmiler on May 13, 2024 10:49:22 GMT
Could they borrow some shoebeams from Jubilee line trains?
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towerman
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Post by towerman on May 13, 2024 11:17:51 GMT
Are they sure it’s not a problem with a conductor rail ? Back in the 70s the Central was suspended for a couple of hours for all stock to be checked for broken pos shoebeams(we found loads) turned out to be a displaced pos rail at Liverpool St.
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Chris M
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Post by Chris M on May 13, 2024 11:47:07 GMT
Could they borrow some shoebeams from Jubilee line trains? That would depend on the availability of spares for the Jubilee line, and the compatibility between the fleets. It seems likely to me that if they are compatible then the same problems with availability of parts will impact both fleets. There is no benefit in fixing the problem on the Northern line by moving the problem to a different line. |
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Post by t697 on May 13, 2024 20:11:20 GMT
They look similar to JL but are not interchangeable as I recall.
And I'm sure those managing the situation have thought to move parts around to minimise the number of stopped trains.
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towerman
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Post by towerman on May 13, 2024 21:14:52 GMT
It’s been done for years,when I was at Stonebridge Pk in the 90s had a train with bad Dutch graffiti on the windows,three of us drove round the North Circular to Northumberland Pk and requisitioned some windows out of their stores as there were none in our stores.Presume when we had a delivery Stone bridge had to send some back.
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