Turn of the century Novella Manual Del Propietário página 9

Blade Balancing
All blades are grouped by weight. Because
natural woods vary in density, the fan may
wobble even though the blades are weight
matched.
The following procedure should correct
most fan wobble. Check after each step.
1. Check that all blade screws are secure.
2. Most fan wobble problems are caused
when blade levels are unequal. Check
this level by selecting a point on the ceil-
ing above the tip of one of the blades.
Measure from a point on the center
of each blade to the point on the ceil-
ing. Measure this distance as shown in
Figure 11. Rotate the fan until the next
blade is positioned for measurement.
Repeat for each blade. Measurement
deviations should be within 1/8". Run
the fan for 10 minutes.
3. Use the enclosed Blade Balancing Kit if
the blade wobble is still noticeable.
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TO REDUCE THE RISK OF PERSONAL INJURY,
DO NOT BEND THE BLADE HOLDERS WHILE
INSTALLING, BALANCING THE BLADES, OR
CLEANING THE FAN. DO NOT INSERT FOREIGN
OBJECTS BETWEEN ROTATING BLADES.
Figure 11
7.