1010 with reverser doesn't have a dry traction clutch. There is a blank clutch disc bolted to the flywheel, driving the input shaft of the reverser unit. There are two wet clutch packs in the reverser itself, one direct, and one driving through an idler for reverse.
The first thing to check is whether or not the pedal is going completely to the end of it's stroke. Sometimes stuff can get jammed under it. If it isn't that, there is something wrong with the valving inside the control block.
Will the reverse lever actually select forward and reverse? The 1010 unlike the later 350 doesn't have an definite selectable neutral in the reverser shift pattern, but you can kind of feel it. Move the lever slowly from forward to reverse and see if the tractor stops. If the tractor stops and you can then shift it, then the reverser unit itself is working and you just need to figure out the valving problem. If it won't stop, then you have something locked up in the reverser itself.