Stitches are not uniform
- Improper threading.
- Needle incorrectly installed.
Install needle correctly.
- Needle bent, or needle tip blunt.
Replace with new needle.
- Thread tensions are not adjusted properly.
Adjust the thread tension.
1034D, 1034DX, 1134DW/ 1134D, 1634D, 1634DX, 3034D, 3534DT, DZ1234, DZ1234, PS3734T, PS3734T, SB3734T, SB3734T, ST4031HD, ST4031HD, ST4031HDH, ST4031HDH
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