LEXMAN 87554450 Manuel D'instructions page 114

First, snap the mounting bracket into the motor head in the position shown above and
then insert the end of the product containing the power and communication cables into
the mounting base supplied, then insert the retaining clip until you hear it click into place.
EN
Caution: do not fasten screws along the entire length of the shutter shaft where the motor is
located, to avoid any risk of damage to the motor and electrical hazards.
If your shutter is based on a belt roller, fix the metal shaft to the wheel/pulley shaft so that
it can move up and down.
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