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3. Install garage door opener. As shown below, align the motor shaft to the hole on the
track. Then, align the two U hanging brackets A to the four studs respectively. The
studs shall be through the holes on the U hang bracket A, and thus the whole
assembly can be mounted by fourM4 nuts. At this point, the whole assembly should be
rotatable vertically along the axle, which is the cotter pin.
FIG. 7
M4 Nut
U
hanging
bracket A
Stud
