AT ATLAS Induced Draft Counterflow Cooling Towers
20
Fan Cylinder Rigging
Lower cylinder carefully around fan and drive shaft using the provided lifting ears. The hook of the crane must be a minimum of
17’ above the lifting ears. Make sure fan assembly is centered within the cylinder before attaching to fan section. Measure the
clearance between each fan tip and the cylinder with a tape measure, making sure it is 7/8” (22mm) or less.
Fasten to fan deck using hardware in Table 10. Holes are to be drilled through the cylinder and fan deck in the field from outside
the tower.
17'-0" (5.2m)
Figure 19 - Fan Cylinder Rigging
Units
Hardware Sizes
All ATLAS Units
3/8” (10mm) Nuts, Bolts & Washers (Galvanized or Stainless)
Table 10 - Hardware Sizes
