12-12-1988 Council Packet - Laserfiche WebLink

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SHEET D-1513 (New Sheet) UNARCO-ROHN Anril 1, 1979 INSTALLATION INSTRUCTIONS BX SELF-SUPPORTING CYLINDER 9ASES 1. Assemble the base as shown on Drawing C750409. 2. Piace the cylinder in the area the tower is to occupy. (Note: Be sure to position the bay;e so that the tower can be hinge.' in The direction where there are no obstructions.) `dark off a circle approximately 2 to 3 inches larger than the cylinder. 3. Dig a hole 4 feet deep (deep enough to ccmpletely bury the cylinder below ground level). 4. Drop the cylinder in the hole and with it as vertical as possible throw the soil back into the cylinder and around it, tamp!ng it solid after every 6 to 8 inches of fill. (Note: 9e sure cylinder is flush or below the ground surface. See Drawing C750409.) 5. When the cylinder is approximately one-half full of dirt, attach the base tower section to the pipe sleeves of the base as shown on Drawing C750409. This is necessary to avoid distortion of the cylinder as you continue to fill and tamp the soil In the base. 6. Continue to fill and tamp the soil into the cylinder to within 6 inches of the top. 7. Plumb the tower section by placing a level on the outside of each leg adjusting to the plumb position by loosening and re-alioning the BXC81 angle support brackets until the tower is dumb. (Note? The brackets must be extremely tight when the tower section is plumb.) 8. Remove the top 1/2" x 3-1/2" bolts Dn the pivot side of the tower that holds the pipe sleeves to the yokes. Then remove both bolts on the side opposite the pivot direction. The section can now be hinged to the ground. 9. Assemble the rest of the tower as per BX tower instructions. Hinge the tower up and when vertical put the 1/2" x 3-1/2" bolts back through the yokes and pipe sleeves. Then tighten all base bolts securely. 10. Complete filling the cylinder with dirt and tamp firmly. 11. After installation is completed, the base should be rechecked in about 30 days to be sure that the hardware remains tight and it should be rechecked every six months. 12. Towers installed in sand or gravel should be guyed or bracketed. NOTES ..... Do not install towers near power Ines. All towers should be installed out of falling distance of power lines since every electrical and telephone wire should be considered dangerous. Unarco-Rohn recommends anti -climb sections on all towers to prevent unauthorized persons from climbing towers. All antenna installations must be grounded per local or natlonal codes. All towers should be installed by experienced and trained personnel. All types of antenna installations should be thoroughly inspected by qualified personnel at least twice a year and remarked with hazard and warning labels to if, - sure safety and proper performance.