Balancing - YUHAO 1085-4 Installation Instructions Manual

Balancing – Wobbling problems during fan operation
If the fan body wobbles during its operation, this is not a sign of malfunctioning (even if it wobbles a
few centimeters). To reduce wobbling, you can turn off the fan,and:
1.Check that all blades are properly fastened by tightening their screws.
2.Check the distance between each blade and the ceiling. Measurements to the ceiling can be carried
out as shown in the following diagram. If variations exist and you have already correctly tightened the
screws, check that all blades have the same shape. If any of them have a shape that is visibly
different, this may be causing an imbalance during fan operation.
If you have completed the previous steps and the wobbling has not resolved,you should apply dynamic
balancing with the kit provided, as explained below:
1.Turn the fan on to the highest speed so that the greatest amount of wobbling is produced.
2.Turn off the fan. Select a blade and place a clip on it (see diagram) halfway between the fastening
and the far edge of the blade.
3.Turn on the fan and check whether the wobbling has improved or gotten worse.Turn it off once again
and if the wobbling has not improved, place the clip on another blade. Repeat this process and
determine on which blade it improves the wobbling.
4.Leave the clip on the blade that produces the best results. Move the clip forward or backwards on
this blade until finding the position that offers the best results.
5.Afterwards, remove the clip and place one of the weights on the upper part of the center line of the
blade at the position where the clip was located.
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