Greenheck Fan 470654 manual Excessive Noise or Vibration

Troubleshooting

Excessive Noise or Vibration

Belts worn or loose?		Yes
	No
		No
Sheaves aligned?
	Yes
		Yes
Wheel unbalanced?
	No

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

Replace worn belts or tighten loose belts.

Reference: Maintenance - Routine, V-Belt Drives, pg. 31

Align sheaves.

Reference: Maintenance - Routine, V-Belt Drives, pg. 31

Clean and/or balance wheel(s).

Replace worn bearings or lubricate bearings as needed.

Reference: Maintenance - Routine, Bearings, pg. 32

Adjust wheel(s) or inlet.

At this time noise and vibration should be at acceptable levels.

Model VSU Make-Up Air 25

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