APPENDIX
Symptom | Probable Cause | Remedy | Reference | |
|
|
|
| |
| The upper thread is incorrectly | Correct the upper threading. | page 20 | |
| installed. | |||
|
|
| ||
|
|
|
| |
| The bobbin thread is incorrectly | Correct the bobbin threading. | page 18 | |
| installed. | |||
|
|
| ||
|
|
|
| |
| The bobbin thread is incorrectly | Correctly wind the bobbin. | page 15 | |
| wound. | |||
|
|
| ||
|
|
|
| |
| The combination of fabric, thread and | Select a thread and needle that are |
| |
The thread | appropriate for the type of fabric | page 30 | ||
tension is | needle is incorrect. | being sewn. |
| |
incorrect. |
|
|
| |
The presser foot holder is incorrectly | Correctly install the presser foot | page 35 | ||
| ||||
| installed. | holder. | ||
|
| |||
|
|
|
| |
| The thread tension is incorrectly set. | Adjust the thread tension. | page 49 | |
|
|
|
| |
|
| Bobbins from older models, which |
| |
| A bobbin designed specifically for | have a different thickness, will not |
| |
| work properly. Only use a bobbin | page 15 | ||
| this machine is not used. | |||
| designed specifically for this |
| ||
|
|
| ||
|
| machine. |
| |
|
|
|
| |
| The upper thread or bobbin thread is | Correctly thread the upper thread and | page 18, | |
| incorrectly installed. | correctly install the bobbin thread. | 20 | |
|
|
|
| |
| The spool is incorrectly installed. | Correctly install the spool. | page 15 | |
|
|
|
| |
| The combination of fabric, thread and | Select a thread and needle that are |
| |
| appropriate for the type of fabric | page 30 | ||
The fabric is | needle is incorrect. | being sewn. |
| |
puckered. |
|
|
| |
The needle is bent or blunt. | Replace the needle with a new one. | page 31 | ||
| ||||
|
|
|
| |
| If thin fabrics are being sewn, the | Sew with stabilizer material under the |
| |
| stitch is too long or the fabric is not | page 51 | ||
| being fed correctly. | fabric. |
| |
|
|
| ||
|
|
|
| |
| The thread tension is incorrectly set. | Adjust the thread tension. | page 49 | |
|
|
|
| |
| The upper thread is incorrectly | Correct the upper threading. | page 20 | |
| installed. | |||
|
|
| ||
|
|
|
| |
| The combination of fabric, thread and | Select a thread and needle that are |
| |
| appropriate for the type of fabric | page 30 | ||
Stitches are | needle is incorrect. | being sewn. |
| |
|
| |||
skipped. |
|
|
| |
The needle is bent or blunt. | Replace the needle with a new one. | page 31 | ||
| ||||
|
|
|
| |
| The needle is incorrectly installed. | Correctly install the needle. | page 31 | |
|
|
|
| |
| Dust has accumulated under the | Remove the needle plate cover and | page 95 | |
| needle plate or in the bobbin case. | clean the bobbin case. | ||
|
| |||
|
|
|
| |
| Dust has accumulated in the feed | Clean the bobbin case. | page 95 | |
| dogs or in the bobbin case. | |||
|
|
| ||
|
|
|
| |
A | The upper thread is incorrectly | Correct the upper threading. | page 20 | |
installed. | ||||
sound is |
|
| ||
|
|
| ||
| Replace the bobbin case. |
| ||
produced while |
|
| ||
The bobbin case is scratched. | Contact your dealer or the nearest | – | ||
sewing. | ||||
| authorized service center. |
| ||
A rattling noise is |
|
|
| |
| Bobbins from older models, which |
| ||
produced. |
|
| ||
A bobbin designed specifically for | have a different thickness, will not |
| ||
|
| |||
| work properly. Only use a bobbin | page 15 | ||
| this machine is not used. | |||
| designed specifically for this |
| ||
|
|
| ||
|
| machine. |
| |
|
|
|
|
108