Stevens 67 Series E Assembly notes

[rhbanjo]

Howdy everyone, I'm looking for some disassembly instructions for the Stevens 67 pump shotgun. I'm mostly interested in the trigger group and how to disassembly the barrel and magazine tube. I'm pretty familiar with the Wincheter '97 breakdown models but this is a solid frame and "different". I don't want to force the tube out.
Has anyone seen any breakdown instructions or manual on line? I have a source on line for virtually every gun except this one (of course!).