Yes and no. People have used the 3 pt on small wheel tractors but the geometry is not exactly right since the 3000 tractors sit lower to the ground. Physically, they should bolt up with little or no modification.
The H/J 26 hitch is the one you are referring to and Case designed that hitch to be used ONLY on the 400 series tractors even though it would physically bolt onto a 200. Ingersoll redesigned the three point and called it the HH-34. That one is universal. It is a KIT that allows it to be used on any 200, 400, 600, 3000, 4000 and 6000 series tractors with no backhoe.
The kit has a bracket that can be positioned in two spots on the mounting plate. On 200/3000 models, this bracket allows the plate to sit 4 inches higher so that full motion of the lift arms can be utilized. You could modify your J-26 hitch to sit 4 inches higher to achieve the same, very desirable results.
OK, I bought it. Hoses, arms, everything. Raising the mounting four inches is not a problem, to get the correct geometery. What valve, lever, or whatever will I need. Or will it operate with the deck, snow blade lift set up that is already on the tractor? it will be used to operate a 3 point self powered tiller I already own. Thanks in advance for you guys time, and knowledge.
When you install the 3pt you will have to install some tee fittings on the lift portion of the tcv, hopefully you got these with the package of stuff. As for using the 3pt with the other things still attached, you should go to surplus center and look at selector valves. This will allow you to operated one cylinder at a time. I have one on mine and im sure you will want to install one on yours.
The selector valve allows you to operate two separate cylinders independently with one control valve--this would be the attachment lift cylinder under the tractor and the 3 pt cylinder. If you're lazy like I am and don't get around to installing the selector valve there is a cheap alternative to make life easier and that is a set of collars that snap fit on the cylinder rod and keep it from retracting. I got a set from TSC after Brian recommended them and it works well when you want to use a plow and don't want the 3 pt moving up and down.