Troubleshooting
Excessive Noise or Vibration
Belts worn or loose?
No
Sheaves aligned?
Yes
Wheel(s) unbalanced?
No
Bearings worn or need
lubrication?
No
Wheel(s) rubbing on inlet?
No
®
Yes
Replace worn belts or tighten loose belts.
(Reference V-Belt Drives in the Maintenance section)
No
(Reference V-Belt Drives in the Maintenance section)
Yes
Yes
Replace worn bearings or lubricate bearings as needed.
(Reference Bearings in the Maintenance section)
Yes
At this time noise and vibration should
Align sheaves.
Clean and/or balance wheel(s).
Adjust wheel(s) or inlet.
be at acceptable levels.
Model IG / IGX Make-Up Air
49