Stickman,
Norton forks are very simple/easy to disassemble with a couple of tools most people would have if they own a norton.
I assume you have the two separate legs out of the yokes with the wheel off.
You have a bolt (Damper Tube Anchor Bolt) tucked away under each slider which must be undone. I have a ground down a 1/2" AF socket to fit in the hole.
The collar (seal holder) at the top of the slider has to undone.
The quote below was a suggestion by Ron L recently, it seems the best way to do the job that I have found also.
"I have always found it best to clamp the seal holder (steel) in a vise. I usually wrap the seal holder with a piece of emery tape for extra grip. Then using the front axle as a tommy bar, turn the lower leg to unscrew the seal holder. This is a tip I got from Brian Slark years ago."
You should then be able to use the main tube as a puller and "thump" it out of the slider. There are not that many bits to work out from that point.
One mistake I made once was not to replace the "Damper Tube Anchor Bolt Washer", this is a fibre washer that stops all your new fork oil pouring out the bottom, so replace them with any other parts you may end up replacing.
I know that this is not a manual suggestion, but hope it may help you.
The spare parts order book is often more usefull for seeing where things go back together than any manual I have found anyway. get one of those if you haven't got one, it is well worth the small cost.
Reg.