Help building a model of a 100 ton hopper properly

I hope I’ve posted this in the correct location. I wanted to know if I was building the this model properly before I grabbed the glue. I’m not sure what direction the part in the photo that are circled need to be facing. I haven’t been able to find any photos and the other model I currently have are different enough that they didn’t help me in this battle as well. I think the cylinder in the back is correct but it may be facing the wrong direction as well.
I thank you for any and all help.

Dave

BrakeDetails.jpg
 

radar

Member
The one in back is called the air tank doesnt matter. the middle is called the triple valve it should be turned 90 degrees. the bottom one is the brake cylinder is correct but most every series of car is different so long as the pointy end of the cylinder is pointed toward the brake wheel you will be OK.
 
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