- Try different thread or put thread in the refrigerator for several
hours.
- Replace needle and ensure the scarf faces the throat of the machine.
- Check thread path. Re-thread the machine if necessary.
- 9 stitches per inch (8-12 acceptable).
- Use larger needle to reduce needle deflection
- Loosen fabric roller.
- Adjust Needle-Bar so all of the Needle-Eye can be seen while looking
into the Hook Basket with the Bobbin Case removed.
- Time: Turn machine forward with Hand Wheel and place the POINT of
the Sewing Hook in the middle of the scarf of the Needle as it rises
from the lowest position. The Hook should almost touch the Needle but
should not cause a needle deflection.
- Polish Hook Point with fine (800) Emery Cloth.
- Hopping Foot at the lowest point of it's stroke should be the thickness
of one dime or three business crds.
- Loosen top tension.
- Tension Check Spring broken. It should be at 11 o'clock.
- Turn thread cone upside down.
LOOPS
ON UNDER SIDE OF LINING FABRIC |
- Moving machine too fast for selected needle speed.
- Tighten (clockwise) top thread tension adjustment 1/4 turn at a time
until corrected. (1/2 turn for experienced quilters).
- Clean under the Tension Spring on the Bobbin Case.
- Bobbin thread not in tension spring delivery eye.
- Put a sock on thread cone.
- Check thread path on machine.
- The Timing Finger (Stationary Finger) that holds the Hook Assembly
and prevents it from turning should be 1/2 to 2/3 into the depth of
the notch.
LOOSE
THREAD TENSION ON TOP FABRIC |
- Tighten Tension Adjustment (turn clockwise)
- Loosen Bobbin tension.
- Center th thread cone diretly under the guide.
- Raise Take Up Roller to clear the machine lower arm by 1/2"
to 3/4" or
the width of your finger.
- Thread clogging wheel(s).
- Center wheels on the track groove by adding or removing washers.
- Increase Hopping Foot height (almost never done).
- Replace Needle, insert all the way up with the scarf toward the throat
of the machine.
- Re-time
- Take-Up Roller too high.
- Loosen Fabric Roller
- Polish Hook Point with fine (800) Emery Cloth
- Thread not on Take-Up Spring
- Check thread path on machine.
- Hopping Foot too high.
- Replace Needle and tighten Needle Set Screw.
- Use larger needle.
- Moving machine too fast for speed setting.
- Re-time.
- A proper stitch has both the bottom and top threads meeting at the
center
of the layers. The top thread and take-up lever have much greater affect
on tension adjustment than the bobbin tension. The take-up lever takes
the
slack out of the top thread as the needle comes up out of the fabric.
This list can be found in
your A-1 Manual.
Dick Fuller, Waverly Hall, Georgia
Click
Here for a Copy of the A-1 Users Manual
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