IOM-PreciseAIR
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4.8.
Blower Wheel and Shaft Maintenance
Periodically inspect the shaft and wheel for dirt buildup, corrosion, and signs of excess stress or
fatigue. Clean the components and, when appropriate, apply new coatings. Any addition of
coatings or weld can create an imbalance. Check the balance of the assembly. Refer to technical
bulletin TB-33 for bearings maintenance.
Figure 11: Ball Bearing Decal
