Nostalgia & History > Can anyone explain the hose connections on this unit?

This is weird.  More confusing than even the Milwaukee.

https://www.trainorders.com/discussion/read.php?11,4905096

-LD

Let's start from the right side of the photo.

The larger hose is the brake pipe for train brakes, the smaller hose is for the signal line for passenger trains.

Going right to left on the engineer's side the large hose is for the main reservoir connection. Next is for actuation of the locomotive airbrakes. The middle hose is for independent application and release of the locomotive airbrakes. The last pair is for sanding front and rear.

...and a steam line tucked in behind the pilot!

Thanks for that reminder about the steam connection.

Yeah. OK . I'd forgotten about pneumatic sanders.

-LD



Edited 1 time(s). Last edit at 11/19/19 22:18 by LarryDoyle.

fbe Wrote:
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> "....The last pair is for sanding front and rear."

I don't recall seeing both forward and reverse sanding control hoses mounted on the same side. Seems like
this arrangement invites cross-coupling, especially if the glad-hands are set up to mate with either one. Different.

Charlie

 

Mounting both sanding hoses on the same side saves having a lone hose hanging loose on the far side. This is a passenger unit, at one time it was not likely the front of the loco was ever coupled to another unit. The threaded female connections may have F or R cast onto them to identify the connections.

Railroaders are professionals and deal with these connections on a daily basis. While mistakes do happen it is far more likely the hoses will be properly by roundhouse pipefitters or machinists than not properly connected. If the hoses are not right they will be crossed between units and glaringly obvious to anyone making the connection. With the sanders off there is no pressure in the hoses so it takes about 2 minutes to make things right.