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Table of Contents
Summary of Contents for SPX Cofimco U Style Hub
- Page 1 Cofimco Fan – U Style Hub User Manual 00-1352...
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Page 2: Fan Components
Fan Components Figure 1—Typical Fan Assembly Order No. ___________________________________ Trial Pitch Angle ______________________________ Final Pitch Angle _____________________________ Speed-rpm __________________________________ Contract hp _________________________________... -
Page 3: Fan Assembly Instructions
Fan Assembly Instructions The following instructions apply to installations having straight Note bores or tapered output shafts without split taper bushings. It is convenient to preassemble the fan prior to installation on the driving shaft. 1—Select a large open area corresponding to the fan diameter. 2—Position the fan hub 1 in the center of the work area with the blade sockets up. -
Page 4: Fan Installation Instructions
9—Progressively tighten each side of the U-bolt until the blades are barely able to move when twisting the blade. BLADE SAFETY COLLAR INNER HUB Figure 3 Fan Installation Instructions 1—Be sure motor is locked out. 2—Clean the hub bore and driving shaft extension for the full length of the key. - Page 5 Adjusting Fan Blade Pitch The trial pitch is the calculated setting for design conditions Note (water rate , heat load, air density, and brake horsepower). The trial pitch is provided by SPX (see page 2). 1–Select a position on the fan circumference and rotate each blade to this common location when setting or checking blade pitch.
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Page 6: Fan Maintenance
Fan Maintenance Preventative maintenance will prolong useful life and assure con- tinued trouble-free operation. After the first week and subsequently at six month intervals: • Torque all hardware to specifications referenced in this manual. • Visually inspect the fan for airborne debris damage, contact with fan cylinder segments, and corrosive attack. -
Page 7: Motor Load
Motor Load The corrected horsepower should be close to but not exceed the contract horsepower specified by SPX. Determine corrected horse- power using the following equation. Actual volts and amperage must be obtained with the fan running and the specified rate of water flowing over the tower after the motor and Geareducer have reached operating temperature (approximately 30 minutes of operation). - Page 8 7401 WEST 129 STREET OVERLAND PARK, KANSAS 66213 UNITED STATES 913 664 7400 spxcooling@spx.com spxcooling.com In the interest of technological progress, all products are subject to design and/or material change without notice. ©2008 SPX Cooling Technologies, Inc. | Printed in USA Manual 00-1352...