MASTERING YOUR BERNINA
®
1/04/02 700D/800DL/7
BERNINA
®
700D/800DL
MASTERING
YOUR
BERNINA
®
Lower Looper - Increased Tension
Owner's Manual pg.____
• Thread the serger for a 4-thread overlock stitch using thread
colors to match the color-coded threading path on the serger.
• Fold each piece of the firm fabric to 1½” x 4” and set aside.
• Locate the thread tension levers on the front of the serger. From
left to right, these levers adjust tension for the Left Needle, Right
Needle, Upper Looper, and the Lower Looper.
• Adjust the lower looper thread tension lever to 7 to increase the
tension on the looper thread.
• Place the first piece of folded fabric under the presser foot with the
fold to the right and serge to the end of the fabric, cutting off the fold.
• Examine the sample. The looper threads do not lock on the edge of
the fabric. The upper looper thread is pulled tightly to the back of the
stitch. The left needle thread may be pulled to the back of the stitch.
• Trim, label, and mount the sample.
Lower Looper - Decreased Tension
• Change the lower looper thread tension lever to 2 to decrease the
tension on the looper thread.
• Serge the second piece of folded fabric, cutting off the fold.
• Examine the sample. The looper threads do not lock on the edge of
the fabric. The lower looper thread is visible on the face of the fabric.
The looper threads are very loose.
• Label, trim, and mount the sample.
ADJUSTING TENSIONS
Fabric: 6 pieces of firm fabric, 6” x 6” each
1 piece of lightweight cotton, 3” x 4”
Needle: 80/12 Universal
Thread: 4 cones of serger thread
(yellow, red, green, blue)
Presser Foot: Standard
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