Dig a hole about 100 inches long, by 45 inches wide, and 20 inches deep.. Construct the wood template shown in figure 6.
Insert a one-half inch bolt about 10 inches long through each hole in the template. Put nuts on the bolts until the bolt just
clears the nut. Mix about 55 cubic feet of concrete. Use one part cement to four parts of gravel and sharp sand.
Thoroughly mix and add the least amount of water for easy handling. Place the template over the hole. Tamp the
concrete mixture in the hole and level it off under the lower edge of the template. Straighten the foundation bolts. Allow
the concrete to set until thoroughly dry, and remove the template. Place a nut on each anchor bolt and tighten them down.
Put an iron washer on each bolt. Lower the engine-compressor over the bolts so it rests on the washers. Adjust the nuts
to level the unit. Place a second washer and nut on the anchor bolts and pull down tight.
15
