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| Re: Brake Valve pr0n Re: LIRR MP-54 #1149 and its ME-23 brake valve (485371) | |||
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Re: Brake Valve pr0n Re: LIRR MP-54 #1149 and its ME-23 brake valve |
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Posted by randyo on Mon Sep 3 20:31:25 2007, in response to Re: Brake Valve pr0n Re: LIRR MP-54 #1149 and its ME-23 brake valve, posted by Jeff H. on Mon Sep 3 02:38:59 2007. A couple of things regarding the ME-23s on the AB and D types involves the feature allowing the tripcocks to be reset from the cab. In the event the train was tripped, the M/M was to place the brake valve in emergency and press the line breaker reset button. This would reset the tripcock and allow the train to recharge. The tripcock was electric on these cars and tripping would open up what the road crews referred to as the EP circuit. The aforementioned action would close the circuit to permit recharge. I don't rcall wht fuse it was but the tripcock circuit was fail safe and if the fuse blew, it would either need to be replaced of if one were unavailable, all the EPs in the train would have to be cut out inorder to release the brakes. Another interesting aspect of the brake setup on the ABs was the unique relationship between the brake plug recepticle and the door controls. If the brake plug was not inserted the guard lights on the car would not illuminate. Also if the brake plug were inserted and the C/R had the lower or grouind ke turned without having the top key turned in the button board, all the doors on that side of the car would close. Now even though I was qualified on the ABs and operated them in service, I was never able to find any additional electrical contacts on either the brake valve or electric brake plug recepticle to account for these vagaries. |
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