Do any of these scenarios sound familiar? After 15 minutes of trying to remove the operator panel, you realize there are two 10-mm screws toward the back. It took you an hour to disassemble a mechanism for access to a failed part, and then you realized it comes out simply by removing a small cover and pulling a release bail. You just get it assembled and restored to service when the factory tech returns your phone call. That’s when you learn the contacts have to be cleaned ...

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