16
Sectional Monopole Tower Foundation & Installation Manual, Revision A
16
Sectional Monopole Tower Foundation & Installation Manual, Revision A
To join the tower sections together :
• Inspect the mating sections of the tower sections for burrs and roughness and smooth and repair as necessary.
• Mark the base section 26 in (66 cm) from the upper end of the section. This mark will be used to determine full insertion of the base section.
• Lubricate the base section using a liquid dish soap (do not use grease or oil as this will stain the tower) and LOOSELY assemble the base and mid
sections. Lifting tab on tower center section MUST face upward.
• Run a 5/16 in (8.0 mm) grade 70 transport chain with slip hooks at each end through the tower sections and secure a 4 x 6 x 14 in (10 x 15 x 36
cm) wood block at the end of the pole.
• Support the tower midsection at its center of gravity – approximately 110 in (279 cm) from the bottom of the section – this will aid keeping the sections
aligned axially.
• Raise the gin pole approximately 10 to 20 degrees above horizontal and insert chain links into the slotted plates positioned on either side of the gin
pole’s central support tube.
• The gin pole should maintain its position under its own weight. Apply a downward force [maximum 200 lb (91 kg)] at the far end of the gin pole to draw
the tower sections together.
• Repeat the above process by readjusting the chain links as necessary until the tower mid section is fully seated against the base section.
• After the tower mid section is fully seated onto the tower base; mark the upper end of the tower mid section 21 in (53 cm) from upper end of the section.
Use this mark to determine full insertion mid section into the top section.
• Join the top and mid sections using the same procedure that was used to join the base and mid sections.
If difficulties are encountered getting the tower sections to seat fully a few blows from a sledge hammer on wood block while a second person applies
pressure using the gin pole will usually result in fully seating the tower sections.
IMPORTANT:
Make sure lifting tab on tower mid-section is facing upward
and in line with the pull direction before seating the tower sections together.
