Campbell UT20, Product Manual

Page: 30 / 47

clay soils, a gallon milk jug of water can be used to “prime” the soil and hole to make
driving the rod easier.
2. Loosen the bolt that attaches the clamp to the ground rod. Insert one end of the 4 AWG
wire between the rod and the clamp and tighten the bolt ( FIGURE 7-20 (p. 27)).
FIGURE 7-20. Ground rod and clamp
3. Attach the tower grounding clamp to a tower leg ( FIGURE 7-21 (p. 28)). Route the 4 AWG
wire attached to the ground rod up the tower leg to the grounding clamp. Loosen the set
screw and insert the 4 AWG wire and the 12 AWG enclosure ground wire into the hole
behind the set screw and tighten the set screw. Route the green wire to where the
enclosure will be installed.
UT20 and UT30 Universal Towers 27