R44 CNG Posted October 3, 2010 Share #1 Posted October 3, 2010 Link to comment Share on other sites More sharing options...
lilbluefoxie Posted October 3, 2010 Share #2 Posted October 3, 2010 i wonder if the people who ordered these cars back in the 60s woulda thought theyd still be running nearly 50 years later Link to comment Share on other sites More sharing options...
Joe Posted October 3, 2010 Share #3 Posted October 3, 2010 If you wait for all the brake cylinder air to exhaust first before taking power, you won't have to worry about hearing the screeching. Link to comment Share on other sites More sharing options...
SmallParkShuttle Posted October 3, 2010 Share #4 Posted October 3, 2010 If you wait for all the brake cylinder air to exhaust first before taking power, you won't have to worry about hearing the screeching. True, but don't you still have the screeching when the train is braking and the friction brakes kick in? I think I recall that that noise might mean that the car's brakes are pretty worn down. Is that true? Link to comment Share on other sites More sharing options...
Joe Posted October 3, 2010 Share #5 Posted October 3, 2010 True, but don't you still have the screeching when the train is braking and the friction brakes kick in? I think I recall that that noise might mean that the car's brakes are pretty worn down. Is that true? It's untrue. The screeching is pretty much just caused by friction between two surfaces. In this case, the steel wheels and the composite brake shoes. On an older train (say, an R9), you'll have friction between the steel wheels and cast iron brake shoes...and those too, will still squeal. Determining whether or not a brake shoe is worn requires a visual inspection of the brake shoe. Every brake shoe has a condemning point that is carved into the side of the shoe. Once the wear gets to the condemning point, time to replace the shoe. Link to comment Share on other sites More sharing options...
LRG Posted October 3, 2010 Share #6 Posted October 3, 2010 I love that screeching sound!! Link to comment Share on other sites More sharing options...
DJ MC Posted October 3, 2010 Share #7 Posted October 3, 2010 Please, watch the Nazi Banksters Crimes Ripple Effect at http://jforjustice.co.uk/banksters Link to comment Share on other sites More sharing options...
LRG Posted October 3, 2010 Share #8 Posted October 3, 2010 When they were ordered they were suppose to be retired in 1999 at age 35 years old. Not even. 35 years is the minimum age (for the most part) in which the cars should be kept around. They could have been (and are) kept around for much longer. Link to comment Share on other sites More sharing options...
Bill from Maspeth Posted October 3, 2010 Share #9 Posted October 3, 2010 This is my biggest "objection" to the R32's: very slow releasing brakes, especially on those Phase 1's, which of course are the only active survivors. Link to comment Share on other sites More sharing options...
SmallParkShuttle Posted October 3, 2010 Share #10 Posted October 3, 2010 It's untrue. The screeching is pretty much just caused by friction between two surfaces. In this case, the steel wheels and the composite brake shoes. On an older train (say, an R9), you'll have friction between the steel wheels and cast iron brake shoes...and those too, will still squeal. Determining whether or not a brake shoe is worn requires a visual inspection of the brake shoe. Every brake shoe has a condemning point that is carved into the side of the shoe. Once the wear gets to the condemning point, time to replace the shoe. I understand your point, and I don't want to sound challenging, but then why don't all of those cars screech? I barely remember an R-38 that did, and selected (random, not predetermined) cars of all the fleets do also. So, my question is, what causes the application of the brakes to produce so much noise? I understand the friction part, but could it be something else, like the wear on the wheels or brakes, which can create an irregular surface between the brake and wheel, causing vibrations, which leads to noise? (Sorry, that was all just over-thinking and reasoning) The reason I ask is if the cause of the noise is known, then can it be remedied? Link to comment Share on other sites More sharing options...
akamtabx36 Posted October 3, 2010 Share #11 Posted October 3, 2010 i dont care what you have to do i love all of the screeching Link to comment Share on other sites More sharing options...
Joe Posted October 4, 2010 Share #12 Posted October 4, 2010 I understand your point, and I don't want to sound challenging, but then why don't all of those cars screech? I barely remember an R-38 that did, and selected (random, not predetermined) cars of all the fleets do also. So, my question is, what causes the application of the brakes to produce so much noise? I understand the friction part, but could it be something else, like the wear on the wheels or brakes, which can create an irregular surface between the brake and wheel, causing vibrations, which leads to noise? (Sorry, that was all just over-thinking and reasoning) The reason I ask is if the cause of the noise is known, then can it be remedied? Slow release on the R32 equipment (at least those cars left) causes the brake rigging to stay in the "sort of applied" state longer than other cars. The shoes moving away from the wheels combined with the wheels beginning to turn creates quite a racket. Link to comment Share on other sites More sharing options...
Queens Surface Posted October 4, 2010 Share #13 Posted October 4, 2010 When they were ordered they were suppose to be retired in 1999 at age 35 years old. Not even. 35 years is the minimum age (for the most part) in which the cars should be kept around. They could have been (and are) kept around for much longer. If the GOH program never happened, the R32 would have been scrapped about 10 years ago....but because of it, we still have the R32s. Link to comment Share on other sites More sharing options...
DJ MC Posted October 6, 2010 Share #14 Posted October 6, 2010 Please, watch the Nazi Banksters Crimes Ripple Effect at http://jforjustice.co.uk/banksters Link to comment Share on other sites More sharing options...
Infamous85 Posted October 11, 2010 Share #15 Posted October 11, 2010 0:02 - 0:07 sounded like a horror movie. Nice vid. :tup: Link to comment Share on other sites More sharing options...
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