The original adhesive used was 'Conley Weld' which was standard but was dropped by Textron some years ago. I don't know what they use now but it isn't that. I'm afraid I'll damage the legs trying to knock the bracket off, or use a method that will change the underlying characteristics and strength. Conley was bought some time ago and I can't find much info at all about what might overcome the adhesive. Any help is appreciated. Thanks.