October 09, 2008
Balancing Tip for Fans
In order to help identify the exact placement of the reflective tape for the zero degree point on the shaft and the corresponding zero degree point on the fan wheel that results in a more precise balancing job, a laser level tool can help.
With the laser line from the laser level tool marking lengthwise along the side of the shaft, move the laser tool over to the fan inspection door so that the laser line also marks the zero point on the fan wheel. If a fan blade is to be used as the zero point, move the fan wheel until the laser line marks the side of the blade. The location of the laser line on the shaft is where the reflective tape should be attached for the corresponding zero reference mark on the fan wheel.
Instead of using a laser level tool, you can also use one of the Belt Hog brand V-Belt Laser Alignment units to create the laser line.
Use caution when operating the laser and follow the manufactures or your company’s recommended safety procedures.
Reader tip provided by Charles Rogers
Program Manager
KSL Services, JV
Los Alamos, NM
