Waking up a sleepy ALCO 539T after 3 years. S4.
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- Опубликовано: 29 сен 2024
- Various audio samples taken during attempts at getting an old ALCO S4 to fire up after 3 years of storage. Takes a great deal of cranking and lopey idling on 1-3 cylinders for the old girl to finally fire on all 6. Video was not usable so I inserted some POV photos instead.
Tthat's exactly how I felt THIS morning! Dont blame ya old girl!
cool video!!
Dear cameraman…….on a cold start like this always locate the camera to show the stack.
" Isn't there another, better engine you guys want to crank on? WHY ME?! GO AWAY!
Had a V16 Alco on the LASH ALANTICO as second generator.
Super. Some of the cold starts that I have seen on RUclips were like this. 💙 T.E.N.
She got some horse power
The Little Old Engine that Could and Did! I think I can, I think I can, I know I CAN.....now get outta my way and Let's Rock!
Do these engines have a separate electric starter or is the starter somehow included in the generator?
Many older locomotives with mechanically-commutated DC main generators use the generator itself as a starter motor.
I'm still learning my way around the ALCOs, but the EMDs have 6 separate field windings in the main generator - one of which is a low voltage start winding. In that case, when a nominal 64 volts DC is applied across the start winding the generator behaves just like a DC motor and develops enough torque to crank the engine. I believe I have a video of the main generator cranking over an EMD SW-1 somewhere on my channel.
As I understand, the only reason modern locomotives don't still do this is because they use AC main alternators with built-in rectifier bridges instead of true DC machines. While improving power density, energy efficiency and reducing maintenance, this also makes a "generator-start" arrangement impractical.
@@heavy-iron thanks for your elaborate answers and the videos.
Living in Europe I'll never see a 539T live but these videos and the excellent sound surely brings a very close experience to the real thing.
Instead of using the traction part of the same alternator, modern locomotives will crank with the three-phase companion alternator (and whatever GE calls it) to get the engine to rotate. It uses a crank inverter to crank the engine. The companion alternator field is a separate group of windings in the main alternator, similar to generator start windings.
Ge 45 tonners also be like that@@heavy-iron
The 70 ton on the E. St. L J RR was the same on winter mornings.
Well...four's better than none!
👍👍
Nice job and diesel sound!
At first you could hear those giant injectors popping off ! A old mavy diesel man knows it would run ! Just need a little bit of heat on those jugs
😂 real tired 😴