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### Profit. | ### Profit. | ||
=== | === Machine Operation === | ||
'''NEVER run the machine backwards.''' If you've gone forward enough to puncture your material with the needle, it's too late to go back. Finish that stitch. If you run backwards, you WILL | Operation tips: | ||
'''NEVER run the machine backwards.''' Use the reverse lever to back up. If you've gone forward enough to puncture your material with the needle, it's too late to go back. Finish that stitch. If you run backwards, you WILL knot the upper thread around the bobbin carrier and it will need to be unblocked involving some machine surgery. | |||
'''NEVER run the machine with the presser foot raised.''' Same thing - Raising the presser foot releases thread tension, and without tension the thread will get trapped under the bobbin carrier. | |||
Use the right pedal to lift the presser foot and release tension to install/remove your work piece. | Use the right pedal to lift the presser foot and release tension to install/remove your work piece. | ||
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* The bobbin winder will automatically disengage from the belt at about 80% full. Do not overfill the bobbin. | * The bobbin winder will automatically disengage from the belt at about 80% full. Do not overfill the bobbin. | ||
==Troubleshooting== | ==Troubleshooting== | ||
{| class="wikitable" | |||
|+ | |||
!Problem | |||
!Symptom | |||
!Cause | |||
!Solution | |||
|- | |||
| rowspan="3" |Thread Tension | |||
|Top thread showing on bottom | |||
| rowspan="2" |Improper tension / wrong needle | |||
|Increase top tension, reduce bottom tension | |||
Use appropriate size needle for fabric/thread. | |||
|- | |||
|Bottom thread showing on top | |||
|Decrease top tension, increase bottom tension | |||
Use appropriate size needle for fabric/thread. Too large needle will leave large holes that allow opposite thread to show. | |||
|- | |||
|Fabric puckering between stitches | |||
|Tension too high | |||
|Decrease both top and/or bottom tension | |||
|- | |||
|Thread Blockage | |||
|Handwheel stuck/won't turn much | |||
|Bobbin mechanism jammed with thread | |||
|Thread blocked/tied around/under bobbin carrier. Requires bobbin carrier disassembly. See [https://www.youtube.com/watch?v=q3zTS39GxWI Video] | |||
|- | |||
|Timing off | |||
|Skipped stitches | |||
|Crash/severe blockage, improper adjustment. | |||
|See [https://www.youtube.com/watch?v=SMeasCNOoe0 Video]. Hook timing will likely need to be reset after a crash or blockage. Remove bevel gear cover, Move needle to bottom dead center, loosen bevel gear set screws, adjust hook until timed to catch thread from needle at bottom dead center. Tighten set screws, and check back and forth for hook/needle collision. Reassemble/re-thread. | |||
|- | |||
|Safety Clutch | |||
|Motor/handwheel turns but no machine action | |||
|Crash/Severe blockage | |||
|Safety clutch popped - Depress shaft lock button and rotate handwheel forward until clutch re-engages. See Video. | |||
|} | |||
==Documentation== | ==Documentation== |