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| Re: Brake Valve portion Re: LIRR MP-54 #1149 and its ME-23 brake valve (485940) | |||
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Re: Brake Valve portion Re: LIRR MP-54 #1149 and its ME-23 brake valve |
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Posted by Bill West on Wed Sep 5 00:15:25 2007, in response to Re: Brake Valve portion Re: LIRR MP-54 #1149 and its ME-23 brake valve, posted by Jeff H. on Tue Sep 4 19:41:51 2007. Thanks for straightening out the details of the dynamic, I would have known better if I had just sketched, especally the classic mistake of “how to we get back to the start of the circuit”. I once trouble shot a remote control cabinet with about 50 points, all the command selects and all the indications were there but it wouldn’t work because the designer hadn’t routed the negative back to the power supply.I sent BIE a GIF copy of my Cad file, the rest of you are welcome to it to if you think the info or style sample would be useful. Jeff, you are certainly right about documenting the differences that aren’t revealed by the schedule name and especially their purpose. I feel some museum is going to pull a valve disc from a spare locomotive and unwittingly undo some important feature that will cause an accident in some obscure way. There was a reason why the Master Mechanic’s office paid someone to understand air brakes. Bill |
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