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Rack alignment / Ball bearing adjustment - Tighten all screws firmly to minimize any unwanted play in the assembly. Make sure that the geared rack can be removed from the gear and ball bearings without too much force needed, the mechanism should not lock up. It might take a few tries before the correct alignment is achieved.

Inserting the rack into the gear and plastic bracket - Note that the power switch on the electrical box has to be turned off for the motor's shaft to be able to turn freely for this operation

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