My compressor continues to run and build pressure past its advertised cut off pressure until the safety valve engages. How can I fix it?

The pressure switch controls what pressure the compressor cuts on and off.

This setting can not be altered. If your air compressor does not stop building air the pressure switch must be replaced by a factory owned or authorized service center.

You can go to www.toolservicenet.com to find the closest service center to you or just order the part.