How to install four meters rotary changeover switch connection ? 

In this video you learn how to connection on rotary changeover for four meters.
• Change over connection...
(1) How to install auto changeover switch connection.
(2) How to install manual changeover switch connection.
• Change over connection...
(3) How to install rotary changeover switch connection two way.
• How to install change ...
(4) How to install cam switch connection.
• How to run two motors ...