Needles for Crochet Machines range in sizes from 2, 3, 4, 5, 6, 8, 10, to 11 (Smallest to largest). Never use a Needle that is too large for the hole in the Needle Plate or the groove in the Needle Guard. When setting the Needle, insert it as far as possible into the Needle Bar, with the thread groove forward and the scarf to the rear of the machine. Tighten the nut on the Needle bar to lock the Needle in place. If adjustment of the height of the Needle is necessary, make these adjustments to the Needle Bar. Loosen the Needle Bar Block, adjust to the position (height) desired, and then tighten the Needle Bar Block. The ideal path to follow this adjustment is as follows:

With the Needle in its lowest position, the Latch Hook should cross the Needle in the scarf above the eye on the Hooks outward path. The Hook should be able to return on its inward path through the scarf above the eye as well. Adjust the height of the Needle Bar until this path is achieved.