Greenheck Fan 470656 manual Excessive Noise or Vibration

Troubleshooting

Excessive Noise or Vibration

Belts worn or loose?		Yes
	No
		No
Sheaves aligned?
	Yes
		Yes
Wheel(s) unbalanced?
	No

Bearings worn or need		Yes
lubrication?
	No
		Yes
Wheel(s) rubbing on inlet?
	No

Replace worn belts or tighten loose belts.

(Reference V-Belt Drives in the Maintenance section)

Align sheaves.

(Reference V-Belt Drives in the Maintenance section)

Clean and/or balance wheel(s).

Replace worn bearings or lubricate bearings as needed.

(Reference Bearings in the Maintenance section)

Adjust wheel(s) or inlet.

At this time noise and vibration should

be at acceptable levels.

®

Model IG / IGX Make-Up Air 49