... 6 colors, change color half lineKnitting system single head, one systemneedle high and low butt needle,high and low butt ... -370.Needle bed movementMoving at 7 grade, operate bed one or half stitch in any direction by steping motorroll system ... broken, knot fabric, fall yarn, floatingback-roll, needle broken, one piece finished,motor overloadPilot lamp green: regular working, Yellow: irregular working ...