Singer 1 One Instruction Manual 34 - Page 18

(4) Correct thread tensions for 3-thread standard overlock. Right looper thread Be sure the threads are correctly threaded otherwise proper tension cannot be obtained. Needle thread Left looper thread Topside Underside Set each tension dial to settings shown below and test sew on a sample of your fabric. • When using right needle for sewing normal width overedge seams, be sure to remove left needle. Fabric Light weight Medium weight Heavy weight Blue Tension Dial Green Orange Yellow 3.0 1.5 2.5 3.5 1.5 2.5 4.0 3.0 3.5 • When using left needle for sewing wide overedge seams, be sure to remove right needle. Fabric Light weight Medium weight Heavy weight Blue 4.0 5.0 6.0 Tension Dial Green Orange Yellow 1.0 1.5 1.0 1.5 1.5 2.0 Right needle thread tension dial (green) Right looper Left looper thread tension dial (yellow) Left needle thread tension thread tension dial (orange) dial (blue) /A 3 3 3 2 4 4 Adjust thread tensions to suit your fabric making reference to table below. Make adjustments in increments of no greater than half a number at a time. 1 When right looper thread lies on the underside of fabric. \ '\ When left looper thread appears on\the top. Left looper thread Needle thread Right looper thread Topside Left looper thread Underside Turn right looper thread ten- sion dial (orange) toward the (+) mark. Or, turn left looper thread tension dial (yellow) toward the (-) mark. Right looper thread Needle thread Topside Underside Turn left looper thread tension dial (yellow) toward the (+) mark. Or, turn right looper thread tension dial (orange) toward the (-) mark. When needle thread is too loose. Right looper thread Left looper- thread Topside Needle thread Underside Turn needle thread tension dial (blue or green) toward the (+) mark. 16