EF-4's Virginians or Bricks?

An open forum to discuss all aspects of the New Haven Railroad.
Joined: 04 Aug 2017, 21:23

12 Feb 2018, 02:55 #61

Antonio:
The pans were air raised and spring lowered. If the pans were down, needless to say the compressor would not be running, so therefore there would be no control air to raise the pans.
The MILW boxcabs had trolley poles that would be raised if the pans were down. This would start the compressor pumping up the air to raise the pans.
Rick
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NHJJ4
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NHJJ4
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Joined: 18 Aug 2003, 09:18

13 Feb 2018, 01:21 #62

Richard Abramson wrote: Antonio:
The pans were air raised and spring lowered. If the pans were down, needless to say the compressor would not be running, so therefore there would be no control air to raise the pans.
The MILW boxcabs had trolley poles that would be raised if the pans were down. This would start the compressor pumping up the air to raise the pans.
Rick
  Rick,
Didn't they have a separate air tank for the ( Pans )  Just in case the main train air was gone. Same with some ALCO units having ( Air Starters ) they had a separate air system for the starter ?
Jim
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Statkowski
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Joined: 05 Mar 2003, 09:39

13 Feb 2018, 12:36 #63

Our US Army 100-foot tugboats with Fairbanks-Morse 38F16 in-line six-bangers were also air starters.  If no air in the main tank, an auxiliary Detroit Diesel connected to the air compressor would be fired up.  Once the main tank had air, then the big engines could be started.
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