How To Disengage The Movable Upper Knife - Singer Quantumlock 14T957DC Detailed Threading Manual

HOW TO DISENGAGE THE MOVABLE UPPER KNIFE

Disengage Movable Upper Knife:
Pull the holder (screw) as far as it will go to the right, and swing the knife down
until it clicks into the resting position.
(To re-engage the knife, pull the holder to the right and swing the knife up until
it clicks into the working position.)