Adjustable pitch fan assembly 22’ thru 30’ diameter (8 pages)
Summary of Contents for Hudson Tuf-Lite IV 5000MM Series
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® 5000MM Series Hub INSTALLATION MANUAL Adjustable Pitch Fan Assembly 32’ - 33’ Diameter ® Hudson Tuf-Lite IV fan blades ® Hudson Tuf-Lite IV fan blades are of single piece fiberglass reinforced plastic (FRP) construction op- ® timized for performance, reliability, noise, and cost effectiveness. Tuf-Lite IV...
SEAL DISC HARDWARE INSTALLATION THRUST RETAINER (optional equipment) *Seal disc mounting hardware must be installed BEFORE in- Install proper load bolt (not provided) into top of fan shaft and stalling blades and blade clamps, due to limited access to seal tighten (See Figure 3).
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SET PITCH AND TRACK each blade in same place first blade was marked. If marks differ by 1" or more, adjust blade. ® Use Hudson EXACT-A-PITCH digital protractor (See Figure 6) to set blade pitch. Mount protractor on the trailing edge CHECK TRACK of the blade and ensure that protractor is long enough to reach at least half across the blade chord.
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CHECK SWEEP Note: Refer to instructions included with seal disc for further details. Measure the distance from trailing edge at blade tip of one blade to trailing edge at blade tip of the adjacent blade (See Figure 7a). This distance should be within 1” of each other for all successive blades.
Start fan and check rotation. Viewed from top (discharge), fan blades should rotate clockwise. Hudson recommends to re-verify the blade clamp torque after the initial 10-15 minutes of cold operation (i.e., the fan doesn’t need to be exposed to the working temperature of the process).
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Tuf-Lite IV Blade (Black) (Varies) * Includes all hardware (316 SS) to assembly and mount. ** Recommended on concrete and round towers, or corrosive environments. Contact Hudson for pricing. STANDARD MATERIALS & FINISHES Blades: Fiberglass reinforced vinyl ester Blade Clamps:...
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Installation Manual 5000MM Page 8 of 9 May 2019...