Very nice indeed! You should have a lot of fun with this outfit.
While a complete CLA is a fair bit of work, you can probably get it working well with a minimal amount of work. It's not for nothing that I'm the "Bodger Extraordinaire". Try the following..........
When I take a camera apart, I use an egg carton to put the pieces in. That way there should be no confusion about what goes where when it's time to reassemble it.
The top comes off very easily. Put the wind knob back on so you can operate the shutter. With the top removed, study the rotating bits under the shutter dial as you operate the shutter until you clearly understand the working of the releases of the two shutter curtains. The mechanism is dead simple in the FED 2 with no slow speeds. Be careful of the flash sync mechanism to the right of the shutter mechanism- it is rather fragile. It is almost always the case that all the parts are doing what they are supposed to do, but are just gummed up. About the only actual mechanical problem is with the long lever attached to a shaft going vertically down to the bottom of the camera. This is the second curtain release, and it is held in place with a spring attached to the body casting. If that spring is not in the right place, both curtains will probably release at the same time.
You need a fairly gentle solvent, a small paintbrush, and a bowl. A spray can of compressed air is handy as well. Do not use something strong such as lacquer thinner. it will dissolve away the crud for sure, but will also ruin the paint and vulcanite. Turpentine or lighter fluid would be good. I do a lot of work with watches, so I use watch rinsing solution designed for ultrasonic cleaners.
Put half an inch or so of the solvent in the bowl. Hold the camera upside down, and using the brush saturate all sides of the rotating shutter bits with they brush, allowing the liquid to drip back into the bowl. Do a thorough job of this with the shutter wound and unwound, and allow it to drain completely while still upside down. This will almost always clean up the shutter function. Allow it to dry thoroughly, and then apply a small amount of light oil between the various rotating bits you have just cleaned. I use a medium grade clock oil, but any light oil (sewing machine oil, for example?) should do the job. While the top is off, clean up anything you can with a dry brush, and maybe the canned air.
A better job can be done with a complete stripdown and all the specific lubricants of course, but that usually means giving it to a repair shop and paying four times the value of the camera to have it CLA'd. I'm just too cheap to do that.
Cheers,
Dez