Kenmore 148.12170 Sewing Machine Instruction Manual
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Description
Kenmore 148.12170 Sewing Machine Instruction Manual.
Includes:
Machine threading.
Changing the needle.
Bobbin winding.
Adjust tension.
Changing presser feet
Stitch width control.
Presser foot lever.
Blind stitch knob.
Thread cutter.
Automatic zigzag.
Sewing on buttons.
Adjusting your machine for good stitches.
Fix common sewing problems.
Oiling your machine.
Sewing light.
Cleaning.
Much more!
27 page instruction/owners manual.
Kenmore 148.12170 Sewing Machine Instruction Manual.
Models:
1217
148.1217
148.12170
ADJUSTING YOUR SEWING MACHINE FOR GOOD STITCHES
When your sewing machine does not sew a properly locked stitch, check the following:
1. Insert a new needle of the correct size for the thread and fabric you are using. Consult the chart on page 5 for needle size.
2. The upper and bobbin thread should be the same thread.
3. Check threading carefully. See page 8-9.
4. Check the thread tension balance.
Use mercerized thread and a correct size needle for the fabric you are using: Do not try to test with synthetic thread as it will not break. Begin with a
full bobbin, properly threaded into the case. Set the stitch length at about 12 stitches perinch. Fold a 6-inch square of your fabric in half diagonally, forming a triangle. Make a line of stitching ½” from the fold.
Check to see if any of the following:
a. The seam is puckered – then both tensions are too tight.
b. Bottom thread is looped – tighten upper thread tension, and repeat test.
c. When top thread lays on top of fabric-loosen upper thread tension, repeat the test. Grasp the stitching and pull evenly and firmly until one or both threads break.
a. Both threads break – tensions are balanced.
b. When neither thread breaks – both tensions are too loose.
c. If upper thread breaks – loosen upper tension.
d. If lower thread breaks – tighten upper tension.
Both threads do not have to break at the same place, but they should break on the same snap.
Bobbin tensions may also be reset by this procedure. Start with a loose bobbin thread tension.
Tighten the spring screw gradually until the bobbin case and full bobbin can be gently lifted from your hand by the end of the bobbin thread.