I saw this post and requested both the wiring diagram and the structural diagram and they sent them to me within 15 minutes of the request. I'm impressed with their response.
I originally used the "contact us" form but never heard anything back. Gave them a call and had all my requested diagrams by end of day.
They guy on the phone was helpful, and made it sound like the online form gets so many requests that things get lost, so ymmv but probably best to call them if you are in a hurry.
Some can be found the the Manuals section at the top of this page in the Misc sections as I recall. Some of us who got the info the uploaded it here. Do the same and help out others.
BTW, I called and asked. It was emailed within a few minutes.