Well you two guys Quick an Aulrich both of you have extractor rifles.
The Handi rifles are so simple, I doubt that the extractors are any different. So just have at it and take one apart, there can only be one small spring in it to to force the extractor up as it passes the lift cam??
You may want to spray the extractor with Crudout and then take it to a service station and blow it out with compressed air. Or spray it with WD40 and boil it in a pot of water on the stove. I do that with Rem trigger groups or O/U actions. It works well without taking things apart.
WD40 does not boil off but it sure boils of all the crud and dirt. The metal get hot enough to dry as soon as you take out of the water then give it another blast with WD40.
Don't set the metal directly on the bottom of the pot, set it on a small rock or two.