Does anyone know where I can get schematics or a manual for a Sterling Type 12 Siren. The vanes seem to resist turning and the unit does not respond to electrical input. I am thinking it has been eposed to the elements for a couple of decades and it probably just needs a good cleaning(When I took the horn off I foun a hornets nest). I just want to make sure I am not damaging anything when I disassemble it. Any suggestions would be greatly appreciated.
Thanks again,
Norm