If you have a Schwinn Tailwind, you might be interested in the manuals for it.

The following links are for the assorted manuals associated with this bike.  Feel free to download them - Schwinn support will send you them if you ask.

Schwinn Electric Bicycles Manual Supplement

Schwinn Electric Controller Replacement Procedure

Schwinn Ebike Tech Supplement - Fuse Replacement

Schwinn Hybrid Pedal / Electric Bicycle Dealer Service Manual

Hopefully you find this useful!  If there are any other manuals you have, please comment and let me know where to find them!