Deleted
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Post by Deleted on Sept 15, 2006 18:03:21 GMT
Just out of curiosity, what sort of cab-switching mechanism will be used in new rolling stock?
In the older stuff (i.e. before 1992TS) there were two things the driver had to do when he entered the cab: pull the master cab switch to turn the entire cab on, and then use his RKL220 key in the selector barrel to activate the CTBC, thus allowing him to charge and release the brakes.
How is it done in modern stock (i.e. 1992TS and up), and how will it be done in the 2009TS and the S stock?
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Deleted
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Post by Deleted on Sept 15, 2006 18:19:01 GMT
In the older stuff (i.e. before 1992TS) there were two things the driver had to do when he entered the cab: pull the master cab switch to turn the entire cab on, and then use his RKL220 key in the selector barrel to activate the CTBC, thus allowing him to charge and release the brakes. D stocks have an RKL220 key, but the older C stocks have a reverser key for the selector barrel.
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prjb
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Post by prjb on Sept 15, 2006 18:23:13 GMT
The 09ts and 'S' Stock are going to utilise an RKL220 type key, but one that is more robust. As I am so important I got to choose which colour the fobs will be! Just in case your wondering, they are going to be yellow (how original!). The driver will enter his key and move the Master Control Switch to the required position. There will also be another key type which will release maintenance functions.
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solidbond
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Post by solidbond on Sept 15, 2006 18:44:16 GMT
The 09ts and 'S' Stock are going to utilise an RKL220 type key, but one that is more robust. As I am so important I got to choose which colour the fobs will be! Just in case your wondering, they are going to be yellow (how original!). That is the Circle Line in you still crying to be released ;D ;D
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prjb
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Post by prjb on Sept 15, 2006 22:00:43 GMT
Yes, your probably right! To be honest I regret choosing yellow, it was a spur of the moment/not too important decision. I thought it would get too complicated to go for line colours, ho hum.
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Deleted
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Post by Deleted on Sept 15, 2006 22:08:21 GMT
Well, I got a yellow and a red one, guess which one I use?
92ts, Key in, turn, select MCS position. Same on 95ts...
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Deleted
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Post by Deleted on Sept 15, 2006 22:41:19 GMT
The 09ts and 'S' Stock are going to utilise an RKL220 type key, but one that is more robust. As I am so important I got to choose which colour the fobs will be! Just in case your wondering, they are going to be yellow (how original!). The driver will enter his key and move the Master Control Switch to the required position. There will also be another key type which will release maintenance functions. So the master cab switch will be gone then, correct? I'm mainly curious about this because I always wondered why the master cab switch was needed...
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prjb
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Post by prjb on Sept 15, 2006 23:05:26 GMT
Yes, on 09ts and 'S' you just put your key in and select a motoring position on the Master Control Switch (MCS).
On conventional stock: You put your control key in and this made the cab live (door controls/radio etc) You then put your reversor/selector key into the barrel (the same item, it's just called two different names depending on which way up it goes in the barrel!) and this effectively began to charge the trainline air in conjunction with moving the TBC The exception is 'A' Stock, this has a Drivers Brake Valve Isolating Cock (DBVIC) which must be opened to charge trainline as 'A' are not fitted with a Combined Traction Brake Controller (CTBC)
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Ben
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Post by Ben on Sept 16, 2006 2:27:38 GMT
Is the RKL220 key the one which looks like a yale key? Lol...the talk of the yellow fobb brought it back to my mind! I remember a friend once remarked how it reminded him of an ignition key
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Colin
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Post by Colin on Sept 16, 2006 3:25:12 GMT
Is the RKL220 key the one which looks like a yale key? It is indeed. prjb - does having no control key mean the cab will be live at all times, or will it only become live once the new single key is inserted and the 'MCS' operated? Thinking about it, it MUST be the latter, as we can't have two live cabs at the same time ;D ;D ;D
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prjb
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Post by prjb on Sept 16, 2006 16:48:02 GMT
You have answered your own question! ;D
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Deleted
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Post by Deleted on Sept 16, 2006 16:58:36 GMT
The driver will enter his key and move the Master Control Switch to the required position. There will also be another key type which will release maintenance functions. Much the same like what a BR drivers key does on an electrostar, all thoug we will have the Yale type version? Although TPWS wont be there to sing at the driver!
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Deleted
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Post by Deleted on Sept 16, 2006 19:24:34 GMT
If there's only one key, what happens to the procedure of giving the RKL / reverser key to a member of staff using your train as protection?
If the driver gives his one and only key away then presumably he loses train radio, PA, passenger alarm etc.
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prjb
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Post by prjb on Sept 16, 2006 21:02:08 GMT
You know what? I love this forum, you guys ask the most relevant questions! I was waiting for someone to ask this and would have been really disappointed if one of you didn't, so thank you adw. There is a position on the MCS called 'Train Secure'. You can rotate the MCS to this position and remove your key. By doing this you will have no traction and an emergency brake application but will maintain vital functions such as radio, PA, PEA etc.
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Deleted
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Post by Deleted on Sept 16, 2006 21:33:12 GMT
Interesting.
Do the 1992/95/96TS have similar features? Will the 2009TS have a similar feature?
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prjb
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Post by prjb on Sept 16, 2006 21:49:32 GMT
AFAIK the 92ts have a big problem with this, unless there has been some kind of 'fix'. If a member of staff requires protection on the Central then the driver ends up having a dead cab. I am not too familiar with the 92ts but thats what the engineers tell me! I am not too familiar with 95/96ts either but I do not think they have this type of system. I stand by to be corrected though! The 09ts will also be getting a 'Train Secure' position on the MCS, in fairness the 'S' is getting it as a carry over from the VLU.
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Deleted
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Post by Deleted on Sept 17, 2006 6:03:50 GMT
AFAIK the 92ts have a big problem with this, unless there has been some kind of 'fix'. If a member of staff requires protection on the Central then the driver ends up having a dead cab. I am not too familiar with the 92ts but thats what the engineers tell me! Correct. I believe the 95 + 96 have a similar problem too.
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