Maserati7200 Posted March 15, 2009 Share #1 Posted March 15, 2009 I found this geometry inspection car at jay street Link to comment Share on other sites More sharing options...
metsfan Posted March 15, 2009 Share #2 Posted March 15, 2009 Reminds me of the philly subway cars. - A Link to comment Share on other sites More sharing options...
dustclee Posted March 15, 2009 Share #3 Posted March 15, 2009 Nice. Thanks for sharing! Link to comment Share on other sites More sharing options...
MTR Admiralty Posted March 15, 2009 Share #4 Posted March 15, 2009 Awesome! Link to comment Share on other sites More sharing options...
KeystoneRegional Posted March 16, 2009 Share #5 Posted March 16, 2009 Please, watch the Nazi Banksters Crimes Ripple Effect at http://jforjustice.co.uk/banksters Link to comment Share on other sites More sharing options...
kaback9 Posted March 16, 2009 Share #6 Posted March 16, 2009 Nice Catch and video! Link to comment Share on other sites More sharing options...
Tbirdbassist Posted March 18, 2009 Share #7 Posted March 18, 2009 What exactly do these cars check for? Warpage, tie imperfections, stress cracks, etc? Link to comment Share on other sites More sharing options...
metsfan Posted March 18, 2009 Share #8 Posted March 18, 2009 What exactly do these cars check for? Warpage, tie imperfections, stress cracks, etc? It checks if the track moves too much, and for proper alignment and position. The equipment does that. It also checks with a thermal camera for any hot spots or possible fires. Rails rarely crack, they are very thick and strong, and often stay in service for longer than the equipment that rides on it. Humans extinguish and remove any hot spot stuff, and visually inspect the tunnel for things out of place. - A Link to comment Share on other sites More sharing options...
Maserati7200 Posted March 18, 2009 Author Share #9 Posted March 18, 2009 Rails rarely crack, they are very thick and strong, and often stay in service for longer than the equipment that rides on it. True. Normal, straight rail inside a tunnel can last up to 65 years. Although some rails outdoors or on curves last shorter, sometimes as little as 25 years. Link to comment Share on other sites More sharing options...
metsfan Posted March 18, 2009 Share #10 Posted March 18, 2009 Correct, usually they start to sag or erode away from friction and re-shaping machine. To reduce flange friction on curves, a lot of places use flange greasers. If you've ever ridden the :nec:, you may have noticed those grey boxes on the ground with solar panels which are mounted on a metal pole coming from the box. The box contains a pump, and a huge container of grease. Special sensors activate the greasing, which is applied to every 4th or 10th or 20th etc wheel depending on various factors. The greasing area can be identified by the black tarp over the ballast & ties between the rails. - A Link to comment Share on other sites More sharing options...
R421969 Posted March 20, 2009 Share #11 Posted March 20, 2009 Correct, usually they start to sag or erode away from friction and re-shaping machine. To reduce flange friction on curves, a lot of places use flange greasers. If you've ever ridden the :nec:, you may have noticed those grey boxes on the ground with solar panels which are mounted on a metal pole coming from the box. The box contains a pump, and a huge container of grease. Special sensors activate the greasing, which is applied to every 4th or 10th or 20th etc wheel depending on various factors. The greasing area can be identified by the black tarp over the ballast & ties between the rails. - A on a sharp curve, for example when the M turns into myrtle avenue station, does the wheel rub against the track as it turns and scrapes it? I have always wondered how does the train or any train at that make those sharp turns without scrapping the track Link to comment Share on other sites More sharing options...
Y2Julio Posted March 20, 2009 Share #12 Posted March 20, 2009 Correct, usually they start to sag or erode away from friction and re-shaping machine. To reduce flange friction on curves, a lot of places use flange greasers. If you've ever ridden the :nec:, you may have noticed those grey boxes on the ground with solar panels which are mounted on a metal pole coming from the box. The box contains a pump, and a huge container of grease. Special sensors activate the greasing, which is applied to every 4th or 10th or 20th etc wheel depending on various factors. The greasing area can be identified by the black tarp over the ballast & ties between the rails. - A That is also found on all other Freight lines as well as Amtrak but not in the NYC Subway System or other MTA systems. Link to comment Share on other sites More sharing options...
Joe Posted March 20, 2009 Share #13 Posted March 20, 2009 I thought South Ferry and Union Square (IRT station) had greasers? Link to comment Share on other sites More sharing options...
Y2Julio Posted March 20, 2009 Share #14 Posted March 20, 2009 I'm not sure, though I could be wrong. Link to comment Share on other sites More sharing options...
Joe Posted March 20, 2009 Share #15 Posted March 20, 2009 http://www.dfi.org/update/08OPAArticle.pdf This article on page 2 mentions the spray nozzles at the old South Ferry. I could have sworn I saw them at Union Square though as well. Link to comment Share on other sites More sharing options...
INDman Posted March 20, 2009 Share #16 Posted March 20, 2009 There are greasers all over the (NYCT), right before curves. If you have ever been on a train going around a curve and then it get quiet while still on the curve, it's because the trains passed a greaser. Link to comment Share on other sites More sharing options...
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