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XTE 802 Series Walk-In-Cabinet (WIC) Description & Installation Manual (631-205-434)
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Rev. D
54
Figure 22:
Helicals and Corner Plates
14.
Lift and set WIC on Helical Foundation Kit. Be sure to bolt the WIC base to the corner plates prior to
releasing all of the weight of the WIC on the corner plates. See “WIC Lifting and Placement Procedures”
starting on page 77.
15.
Once all hardware is installed connecting the WIC base to all corner plates, tighten and secure all the
hardware.
16.
Install the WIC stairs using the provided hardware.
The helical foundation is designed to minimize soil disturbance and time involved for installation compared to
other types of foundations. The minimum requirements for properly installed helical pier are 1) to achieve
penetration so the pier’s top base plate is 11 inches above grade and 2) achieve a minimum torque value of
3,000 foot-pounds. A maximum torque value of 15,000 foot-pounds should be used. In the event the helical
foundation cannot be installed per the standard procedure above, one of the following Alternative Procedures
should be used.
Alternative Installation Procedure #1 (6 Inch Auger)
1.
Using a 6 inch auger, drill to a depth of 5 to 7 feet while minimizing enlargement of the bore. Drill the
pier into the hole using the standard methodology and parameters.
2.
Fill and tamp any space around the top of the helical with dirt or small gravel.
Alternative Installation Procedure #2 (New Location/Alter Helical)
In the event the base-plate is more than 11 inches above grade, due to subsurface conditions including bedrock,
boulders and other immovable objects;
1.
Consider changing the location several feet while maintaining the required minimum antenna separation
requirements. Follow the steps of appropriate procedures above.
2.
Cut the top plate off the helical, cut the helical at the appropriate height, and weld the top plate back to
the helical.
3.
Cut the helical at the appropriate height and install a fitted cap plate onto helical. Holes will need to be
drilled to secure the cap plate to the helical.
