Automatic pilot valve system for foundation tooling

The method of making an automatic pilot valve system for foundation tooling, comprising the steps of:

• (a) providing a pilot valve housing structured to be secured to an auger stem and flights having a cement supply located within said auger stem, wherein said pilot valve housing defines a channel configured for accepting a pilot shaft and wherein said pilot valve housing includes one or more openings therein;
• (b) providing a pilot shaft having an upper pilot shaft section and a lower pilot shaft section structured to be moveably inserted into said pilot valve housing channel configured for accepting a pilot shaft;
• (c) providing one or more retaining bolts or pins located in said upper pilot shaft section and securely affixed to said upper pilot shaft section wherein said one or more retaining bolts or pins are structured to extend into said one or more openings located in said pilot valve housing and thereby limit the travel of said pilot shaft within said pilot valve housing;
• and
• (d) providing a pilot tip having one or more cutter bits affixed thereto, located in said lower pilot shaft section;
• wherein when the automatic pilot valve system for foundation tooling is drilling down into an earth soil hole the upper pilot shaft section is pressed up against the pilot valve housing and closes off said cement supply and covers said one or more openings in said pilot valve housing to prevent the flow of cement into the drilled hole, and further wherein when said automatic pilot valve system for foundation tooling is being lifted out of the drilled earth soil hole the pilot shaft extends downwardly to open up the cement supply and allows the cement to flow out of the one or more openings in said pilot valve housing, thereby automatically filling the drilled hole with cement.