HELPFUL

HINTS

 

PROBLEM

Upper thread breaks

CAUSE

. Machine not properly

threaded.

•Thread entwined around bobbin.

•Needle inserted incorrectly.

Thread tension too

tight.

Thread of incorrect size or poor

quality.

 

 

CORRECTION

Re-thread machine. Remove entwined thread. Re-insert needle.

Readjust thread tension. Choose correct thread.

PAGE

13 12 6 17

18

Lower thread breaks

Machine skips stitches

•Bobbin threaded incorrectly.

Bobbin wound unevenly or too full. Dirt on the bobbin holder.

Needle inserted incorrectly.

Bent or blunt needle.

Incorrect size of needle. (on stretch fabric)

Re-thread the bobbin.

Rewind the bobbin.

Clean the holder.

Re-insert needle. Insert new needle.

Choose correct size needle for fabric.

(use stretch needle)

12

11 30

6 6

18

 

•Machine not properly

threaded.

Fabric puckers

•Bobbin threaded incorrectly.

 

Blunt needle.

tight.

 

Thread tension too

 

 

 

Machine makes

.

Bobbin threaded incorrectly.

loose stitches

.

Machine not properly threaded

or loops

Tension not adjusted properly.

Re-thread machine. Re-thread the bobbin. Insert new needle. Readjust thread tension.

Re-thread the bobbin. Re-thread machine. Readjust thread tension.

13 12 6 17

12 13 17

Threader does not thread needle eye

Machine does not feed properly

Needle is not raised.

 

Needle inserted incorrectly.

.

Bent needle.

 

Feed dogs are lowered.

 

 

 

Lint and dust accumulated

around

 

 

feed dogs.

 

Raise the needle.

Re-insert needle.

Insert new needle.

Raise the feed dogs. Clean the feed dogs area.

8 6 6

8 30

 

Fabric pulled while sewing.

 

Needle is hitting the presser foot.

Needle breaks

Needle inserted incorrectly.

 

Incorrect size needle orthread for

 

 

fabric being sewn.

Do not pull fabric.

Select correct foot and pattern. Re-insert needle. Choose correct size needle and thread.

15 19 6 18

Machine runs

Dirt or lint accumulated in the hook

Remove the needle plate

with difficulty

 

 

race and feed dog.

and

bobbin holder and clean

 

 

 

 

the

hook race and feed dog.

 

 

Cord not plugged into electrical

Insert plug fully into outlet.

 

 

 

outlet.

Turn on the switch.

 

 

Power switch is not turned on.

Machine will

not

Bobbin winder spindle is pushed to

Push spindle to the left.

run

 

 

the right.

Lower the foot.

 

 

Presser foot is not lowered.

 

 

Buttonhole Sewing Mode;

Lower the buttonhole lever.

 

 

 

Buttonhole lever is not lowered

 

 

 

 

 

 

 

 

completely.

Attach the buttonhole foot.

 

 

 

Buttonhole foot is not attached.

30

7

7 11

15 23 23

-31-

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Image 33
White W1750C manual Helpful, Hints

W1750C specifications

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