Bless you taking your machine from this nut.
I ask a so called certified Pfaff dealer just to look at one thread tension on my machine. I told him NOT to do any repairs.
The idiot said no problem. He BROKE my machine. It cost me over $800 to get what he did repaired. Another Pfaff dealer that knew what he was doing. Now I tell every person I see don't let "Sewing in the Carolinas' touch your machine.
My friend went there they sold her a broke machine.
They would not take the machine back. Thank goodness she had paid by credit card. This was before we new each other.