I pried up the yellow sticker to expose the hole in the drive housing and reached in with a stick and pulled the lump of metal sticking out behind the sticker towards the right to free them. It took a noticeable amount of force for a little while before the rubber gave way. The drive was spinning at the time since moving the heads when they are resting on the platter can cause damage. Something with a little bit of a hook on the end would have made it easier. After the heads were freed the drive went through its seek pattern and I was able to read the drive. You can see the rubber bumper ripped with part of it still stuck to the stop and the rest on the head assembly. I suspect the residue will continue to cause problems. With the deteriorated stop if something causes the drive to try to step further out than track 0 the heads will get to close to the edge of the platters so they either don't fly right or are partially off the platters which will damage the heads and the platters.
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