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[title] Fix the nuts
[* black] First insert the o-rings.
[* black] Then add the washers.
[* black] Eventually, close ***slightly*** with the nuts.
-[* black] Before screwing ***firmly*** the nuts, shake a little the assembly or allow a few hammer kicks on the back of the pump, to adjust the mechanical parts to each other.
+[* black] Before screwing ***firmly*** the nuts, shake a little the assembly or allow a few kicks with a soft mallet on the back of the pump, to adjust the mechanical parts to each other.
[* icon_note] If you can, test that the motor rotates freely by connecting it to the power supply right now.
[* black] ***Firmly*** fix the nuts, but be prepared to untighten them as needed if the pump draws too much current.