John,
The cocking hook is not releasing. It needs oiling and/or cleaning. Your pictures show the little pin in the front of the receiver fully extended. That is how it must be to remove barrels. Many times they stick and the attached slide and hook don"t move to release the barrels.
Get the gun appart again by dropping the hammers and use some Breakfree CLP.
The current issue may be the pins dragging. A little force usually works with no problem. However, take the forend off and remove barrels. That should permit examination and diagnosis.
Bob Jurewicz
Last edited by Bob Jurewicz; 06-21-2009 at 08:40 AM..
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