Installation Guide

PRIMUS WIND POWER DOCUMENT #0070 REV C
PRIMUS WIND POWER Page 11 of 26
2/4/05
Augers depend on the ability of the soil to hold together for the pullout strength. If augers cannot
be screwed in, simply digging a hole and burying them will not work. We recommend buying
augers, and if they cannot be screwed in properly, a hole can be dug and the auger cast in concrete.
This will provide a good loop for guy wire attachment and make an excellent anchor in the
concrete.
Duckbill Anchors: Duckbill anchors consist of an anchor attached to a cable with a loop on the
end. They are driven into the ground using an anchor driver, which is a steel rod with either an
enlarged striking surface (for a large hammer) or an attachment for a jackhammer or impact driver.
The rod fits into the anchor and holds it straight while it is being driven into the ground. Once the
anchor is sufficiently deep in the ground, the driver is withdrawn and the anchor cable is pulled a
short distance to “set” the anchor. As the anchor is being set it will rotate perpendicular to the hole
made as it was driven in, making it very difficult to move any further.
Please note that once a duckbill anchor is set in place it cannot be removed without digging it out.