Glass in 4-6-0

[Al NJ]

I purchased a 4-6-0 a couple months ago and at least one piece of glass in the cab was loose when I opened the box.
And another piece has slipped off since then, so I thought I'd re-attach it myself, and at the same time add an engineer and fireman.
I detached the handrails on the rear of the cab and removed the 4 screws under the cab, but I'm not sure how to remove the piping and whistle and bell linkage, and I don't want to break anything.
Any advice would be appreciated.

(I guess I could send it back to Bachmann, but I'd rather do it myself)

Thanks.

[Al NJ]

bump.

It seems like the piping just pulls off, but it does seem a bit stubborn.

Anybody?

Thanks in advance.