I'm not sure the handle had to come off, but probably no big deal. 
What about the 4 screws on the sides?   Even though they pass through 
the bottom cover, they are close enough to the joint between the top and 
bottom covers, that it wouldn't surprise me if the  top cover extends 
below  that joint and the screws pass through both covers.

If you remove them and the top cover won't come off, put them back in.

73, Steve KW3A

On 11/22/2015 12:03 AM, howard kaufman wrote:
> Anybody know how to take the cover off the 590?
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> I took out the 4 top screws, and the screws on the handle.
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> Nothing moved.
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> What else needs to come off.
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> The knob as well as the shaft have a lot of play in all directions.
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> Howard Kaufman MSW LCSW
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