Air brakes and locomotive connections
Vložit
- čas přidán 15. 12. 2014
- F7 EMD Locomotive tour at Royal Gorge Route Railroad. See how the engines are connected and learn the very basics about air brakes. Chief Mechanical Officer B.Evans shows us various parts of the system. See the 27-wire jumper cable (MU cable). See the diesel fuel tanks and learn more about engineering in this 3rd part of our diesel locomotive video.
- Věda a technologie
Man that's brilliant I could watch this stuff all day.
You've made some great explanatory videos of the F7. I've watched all three parts, however, perhaps you folks should do some editing/renaming as all 3 videos have had no consistency in the way they were titled/labeled. A user has to go back and look through your uploads and whatnot to find all parts of this series. Just a thought.
Nice explanation 👍🏼
Great vid!
So if there's locomotives at the front and at the rear, is there an MU cable that runs between them?
Small mistake, the 3 MU hoses are Main Res, independent and bail off (act) the Equalizing res is not linked and it would be detrimental to link it between units.
I'm never going on the mainline with you. you verbaly crossed some hoses incorrectly.
BossSpringsteen69 he’s right, main res, act or bail off, then independent brakes
"Through the Rockies- Not Around Them"
Are those knuckle pins upside down?
Yes they are. You noticed that too. I've never worked with F units but it looks like they have to be installed upside down because the anticlimber/walkway might be closer together when the slack is bunched in thus, not allowing you to pull the pin out.
Shouldn't be that way,only thing keeping that pin in is just a cutter key eww no wayyy...cushion draw bar so take the extra step and put it in the right way
The drop pin is upside down. A lot of equipment (especially rolling stock) is done this way, not quite sure what difference is makes or how it works to keep the pin in place, to be honest. It's usually done for clearance purposes with walkways and whatnot, so it's especially common with passenger equipment.The only difference I can think of is the way the knuckle is opened. Instead of lifting the cut bar, you push it down.
The video says "Composite brakes are much less efficient at dissipating heat". I don't believe this to be true they are more efficient, meaning they are better at dissipating heat. Composite and ceramic brakes have a very high heat coefficient.
Chase Cares as an automotive mechanic, I know a little something about this, composite shoes really are much less efficient in this area. They essentially act as an insulator, hold heat in. Where as the cintered metal shoes would transmit heat through the material and and allow it to dissipate into the air, and through the connected machinery much easier.
The cast iron can put flatsspots on wheels quicker than composites can. Meaning they stop the wheel from turning quicker. Several years ago they put some cast irons on a few of our yard engines. They stopped quicker than my 2013 Mustang (joke of course) but, they stopped the equipment so quickly that the locomotives were getting flat spots quicker than usual.
@@BossSpringsteen69 Cast iron shoes are expensive and heavy too. They're about 15-20 pounds a piece if I recall correctly... installing them is a bitch compared to the Comps. They're heavy enough to require a good slack adjust when you make the switch.