Pdxrailtransit Wrote:
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> Seeing more and more of these. Since there is nothing mechanical about these boxes, it looks to me that they are just brackets for lifting out the exhaust assembly.
>
> [
c2.staticflickr.com]
Here's a possible answer: "We have had several of these in our shop over the last few months. It is just basically a metal box that mounts around the stack to hold a plate over the stack to block it off for storage. Once out of storage they just leave the box in place instead of removing it. A little more sturdy than the vinyl covers we used to use." [
cs.trains.com]