Deleted
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Post by Deleted on Oct 23, 2005 18:10:11 GMT
I was hanging around at Earls Court trying to find a west-to-east reverser when I heard a D78 pop the whistle on the eastbound.
When it came into platform 2 I could hear a loud hissing of air issuing from the leading motor bogie of car 7056. The triple-manning in the cab, the darkened saloon and the Special blinds that the driver had put up led me to believe that 7056 had suffered from either a tripcock failure or a partial main line air burst.
After a quick halt in platform 2 to allow EC11 to clear for Gloucester Road (an Upminster TD was put up on the platform) and another whistle pop, 7056 moved off - with no traction motor sound from under the DM.
Anyone willing to suggest what the issue could be? I doubt it's a main line air burst, so what else could have gone wrong?
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solidbond
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Post by solidbond on Oct 23, 2005 18:27:55 GMT
It definitely couldn't have been a main line burst on the front car - not if the whistle was working ;D I'll see if I can find out tomorrow what the problem was  |
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Post by Deleted on Oct 23, 2005 19:13:34 GMT
I heard over the radio that train being taken out of service at Blackfriars eastbound, but later it went past me at West Brompton going east (probably just before you saw it), so it must have gone into Tower Hill, then Wimbledon, then back again...
I know the driver, so I'll ask him if I see him.
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solidbond
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Post by solidbond on Oct 24, 2005 13:02:05 GMT
Having checked today, it seems it was simply a defective motor on car 7065, the east end motor car (this is the one that had the number 7056 mistakenly applied on the nearside by the drivers cab).
The train taken OOS at Blackfriars was a different train it seems.
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Post by Deleted on Oct 24, 2005 18:48:01 GMT
Yes, it seems I was talking out of my a*se when I said it was 105 at Blackfriars. Thanks for getting the real story, solidbond.
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solidbond
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Post by solidbond on Oct 24, 2005 20:00:39 GMT
Yes, it seems I was talking out of my a*se when I said it was 105 at Blackfriars. Thanks for getting the real story, solidbond. Not a problem adw ;D ;D ;D ;D |
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Post by Deleted on Oct 24, 2005 20:09:25 GMT
Having checked today, it seems it was simply a defective motor on car 7065, the east end motor car (this is the one that had the number 7056 mistakenly applied on the nearside by the drivers cab). The train taken OOS at Blackfriars was a different train it seems. Thanks solidbond. What sort of fault was it? Judging from the fact that there was air leaking out of something, I guess one of the air inputs for the doohickey that switches the resistances on the PCM camshaft was broken - was that the case? Also, is it usual to perform triple-manning for this sort of defect? |
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solidbond
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Post by solidbond on Oct 24, 2005 21:48:05 GMT
No idea of the actual defect at the moment, but I may find out next week. If I do find out I'll let you know |
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Post by Deleted on Oct 24, 2005 22:47:20 GMT
Also, is it usual to perform triple-manning for this sort of defect? I guess the three people would be driver, train technician and DMT. It doesn't mean three people are actually required to safely move the train. |
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solidbond
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Post by solidbond on Nov 7, 2005 1:31:26 GMT
Was on 7065 today and noticed the entry in the defect log, which for once gave full details of what the defect was  It seems an air hose had come away under the train, which should have gone to the brakes, to hold the Spring Applied Parking Brake off. So the actual problem was that the SAPB was applied, causing sluggish movement, which had been thought to be motor problems, as there was no air showing on the brake cylinder gauge ;D |
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Post by Deleted on Nov 7, 2005 8:53:07 GMT
Did the shoe on the SAPB need to be replaced?
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It seems an air hose had come away under the train, which should have gone to the brakes, to hold the Spring Applied Parking Brake off. So the actual problem was that the SAPB was applied, causing sluggish movement, which had been thought to be motor problems, as there was no air showing on the brake cylinder gauge ;D
