570-34790 Hi temperature switch, for the Lister petter air cooled engines. Commonly used on the Read Screen-all products build 76 This will be item 12

This will be item 12 and 5 in the Lister Petter drawings

Without this tool the seal is almost always damaged

This will be item 24 in the Lister Petter Drawing

This sensor wires into the electronic governor controller

570-34790 Hi temperature switch, for the Lister petter air cooled engines. Commonly used on the Read Screen-all products build 76 This will be item 12570 34790 Hi Temperature safety switch, commonly used on the Read Screen All products, Model RD 20, RD 40, Rd 90 and the RD 150 screeners This will be item number 2 and it will include items 3 and 4 on the Lister Petter drawings. You will notice on page 12 this switch works above 1850 rpm and its a normally closed contact switch. its listed as a code JB item. this item can be tested by starting the engine and disconnecting one of the wires, the engine