I have an old heavy duty double pole switch on a
jointer that my FIL gave me. Acted much as you
described. Decided I need to buy a new one and
installed it but still took the old one apart.
The old one came apart easily and only needed
needed some small pieces of wood removed and
cleaned up to snap closed and snap open correctly.
I kept the old one and am not sure if it
isn't constructed better than the new one I installed.
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