Maintenance - Chore-Time Hyflo Instruction Manual

48" and 52" Hyflo® Fans Installation and Operators Instruction Manual

Maintenance

IMPORTANT! Disconnect Power Prior To Maintaining Or Cleaning The Fan. The fan may start automatically
causing serious injury or death.
• Service and repair of fans should be done only by a qualified technician.
•Minimize contact of moisture or corrosive chemicals to the surfaces of the fan components to maximize fan life.
•After washing fans, operate fans long enough to remove moisture from all fan surfaces.
• Keep the fan clean for maximum life and best performance. Do Not spray water on the Fan Shaft Bearings, the
Belt Tensioner, or the Motor.
• Periodically check the V-Belt and replace if necessary. A worn Belt will cause a substantial drop in Fan perfor-
mance or it can break and cause Fan failure. If a Belt rides below the Sheave edge, replace the belt. (See Figure
25 below)
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Figure 25. Belt Condition
• Check Belt Tension. The Belt should be
tensioned just tight enough to minimize
Belt slippage. Over tensioning the belt
will cause premature Belt and Bearing
wear. With a new Belt the Idler Sheave
indicator mark should line up with the
third notch in the Tensioner Housing (See
Figure 26).
• Keep Shutters, Blades, and Housing clear
of obstacles for best air performance.
•Check Sheaves for wear. Replace if a Sheave groove is worn. (See Figure 27)
Good Sheave
MV1832P
Good Belt
Figure 27. Sheave Condition
Bad Belt (Needs Replaced)
Bad Belt
Third Notch
Figure 26. Idler Sheave Indicator
Bad Sheave (Needs Replaced)
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Bad Sheave
Maintenance
Belt Tensioner
Idler Sheave Indicator Mark
17