Installation Instructions PowerFlo™ Fans

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5.0 Periodic Maintenance

Most fan failures are not sudden catastrophic degradation of the equipment and can be prevented by regular inspection and maintenance of the fan and fan drive system. Correcting problems before fan failures occur is more cost effective than replacing equipment after a fan failure.

Amarillo Chittom AirFlo PowerFlo fans should be inspected for damage and correct hardware torque after the first full week of operation and at intervals not greater than six months thereafter. Be sure to follow all safety precautions including proper lock out and tag out procedures when inspecting and performing maintenance on your equipment.

Clean any accumulated scale or foreign matter from the fan assembly when you perform the regular maintenance on the fan. The build up of foreign matter on the fan increases operating stresses and may aff ect the life of the fan in addition to reducing fan efficiency.

Check the fan for any cracks, dents or corrosion. Black streaks originating from rivets are a good indicator that wear is occuring in the connections. Pay particular attention to any areas exhibiting black streaks for cracks and looseness of the mechanical joints. Sudden or frequent appearance of these black oxide trails may be an indication of excessive vibration in the operating unit or very high aerodynamically induced loads in the fan blades. Blades with wear or damage may be replaced individually without adversely affecting fan balance. Please consult the factory for details concerning blade replacement.

The 5052-H38 aluminum used for construction of the fan blades is a marine alloy offering good resistance to corrosion and minor dents. Special coatings and hardware options are available for fans operating in more aggressive environments. Please contact the factory for information concerning suitability of the fan and recommended options for fans operating in corrosive environments.

Check the fan blade tips and the fan rings for any signs of wear or contact.

Check all hardware for proper torque.