what are these?

[wisandsouthernkid]

i was checking out a parked train sitting in  the front of my driveway and i noticed that on the boxcars there was what looked to be a valve on the side of the boxcar in front of the opening doors. But it was only on the boxcars is that like a bleed valve or something for the air cylinder or resiorvoir i cant fid a picture of one but ill try again.

[silicon212]

That's most likely exactly what that is ... it allows the car to be moved once the air is removed from the car, for switching operations such as kicking or dropping.

[enr2099]

What you're describing sounds more like a retainer valve. The bleed rod is a rod underneath the car.

 

I'm not quite sure what this has to do with locomotives though. 

[wisandsouthernkid]

sorry i tried to think of these as something mechanical and the air system would have to do with locomotives.

 

you know i was debating the same thing as to where i should have put it. i was also thinking of the general discussion portion but i thought that this would be better.

[csxengineer98]

i was checking out a parked train sitting in  the front of my driveway and i noticed that on the boxcars there was what looked to be a valve on the side of the boxcar in front of the opening doors. But it was only on the boxcars is that like a bleed valve or something for the air cylinder or resiorvoir i cant fid a picture of one but ill try again.

was under the car body itself? below what would be the floor of the inside of the car?

csx engineer 

[oltmannd]

What you're describing sounds more like a retainer valve. The bleed rod is a rod underneath the car.

 

I'm not quite sure what this has to do with locomotives though. 

I cast my vote for retainer, too.

[wisandsouthernkid]

the rod was dead center underneath the car