Looking for GEH 6121

You said the Title is GE Training Manual,any ideas 'training' for what. I've checked so many GE document resources and coming up with nothing, where did you get this info from
If you are a GE customer, then with your SSO, you should be able to download a copy of Classic / Legacy Toolbox for their customer portal. Once you install the above software, then you will find these documents under documentation folder.