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Machine reference
Needles, bobbins, feet and other details for this model. Check the requirements before choosing parts.
Before choosing a part
Start with these documented details. Read the requirements with each answer before choosing a needle, bobbin or foot.
Not yet confirmed here: Manufacturer accessory group, Presser-foot shank type, Foot attachment, Foot holder / mount, Foot interface / generation, Bobbin type / class, Bobbin material, Bobbin diameter, Bobbin height, Hook type, Maximum stitch / zigzag width, Feed system, Bobbin loading direction. What is still to confirm →
Other names, regional versions and related models have not been confirmed here. A shared manual, product line or accessory group does not identify the machine's family.
Only part no. 102261000 is printed, in the standard accessories list on PDF page 11 (printed page 6). No bobbin class, size or material is named, which is unknown here, not incompatible, and no substitute is confirmed.
Documents and page references →“HAx1” is printed for the supplied set only. The needle chart on PDF page 21 (printed page 16) names needle types without a system code, so no system is confirmed for the chart’s needles and no equivalence is inferred.
Documents and page references →Turn off the power switch first (PDF page 19, printed page 14). The manual names no shank type or foot mount class and says to use only attachments the manufacturer recommends, so other feet are not confirmed; that is unknown, not incompatible.
Documents and page references →The dial numbers 0 to 5 (PDF page 39, printed page 34) are not millimetres; the manual gives no stitch width in mm, so no maximum width is stated. Don’t turn the stitch width dial while the needle is in the fabric, or the needle may bend or break.
Documents and page references →The care section’s warning reads: “Turn the power switch off and unplug the machine before cleaning.” (PDF page 83, printed page 78). Then use the steps on PDF pages 83 and 85 (printed pages 78 and 80). Don’t dismantle it beyond what the care section explains. The care section gives no owner oiling steps, so whether to oil the machine is not stated here.
Documents and page references →The care section’s warning reads: “Turn the power switch off and unplug the machine before cleaning.” (PDF page 83, printed page 78) Use the troubleshooting table on PDF page 87 (printed page 82). Its reference for both noise causes prints “Page 82”, the table itself; the cleaning steps are on PDF page 83 (printed page 78).
Documents and page references →Switch the machine off (“O”) first, as safety instruction 14 says. Use the steps on PDF page 25 (printed page 20) and “Inserting the bobbin” on PDF page 29 (printed page 24); the threading path is not rewritten here.
Documents and page references →Turn the power switch off and disconnect the machine from the power supply first. Use “Changing Needles” on PDF page 21 (printed page 16), check the needle for straightness on a flat surface, and never use a blunt needle.
Documents and page references →Part numbers are as printed in the standard accessories list on PDF page 11 (printed page 6). They identify the supplied feet only; no other foot, optional list or retailer fit is claimed here.
Documents and page references →The size is for automatic buttonhole foot R on PDF page 55 (printed page 50). Make a test buttonhole on a sample that duplicates the garment’s fabric, interfacing and seams, and use interfacing on stretch fabrics.
Documents and page references →Manuals, parts books & more
Publisher links below distinguish a matched file from a listing.
Choose the document for your task: an instruction manual, service manual, parts list and accessory guide answer different questions.
About this document & page references →
Instruction manualEdition: no edition date printed; back cover "507-800-646 (E/S/F) / Printed in Taiwan" (physical 90); PDF metadata created 2010-04-14, modified 2010-06-16
Models referenced here: Baby Lock BL30A
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We checked that this file matched the source used here on 2026-11-05. The publisher may later replace its file.
Read the model-specific requirements with each answer before choosing parts.
The supplied set (part 540401026) is two HAx1 size 14, two HAx1 size 11 and one stretch needle (PDF 11 / printed 6). The needle and thread chart runs from size 9 (65) for chiffon, georgette, fine lace, organdy, net and tulle to 16 (100) for denim, heavy coating, canvas and upholstery fabrics, and 16 (100) or 18 (110) wedge point leather needles for heavy leather and suede. It asks for a blue tipped or ball point needle on single knits, jersey, swimwear and tricot, and a ball point needle on double knits and stretch fabrics (PDF 21 / printed 16).
Turn the power switch off and disconnect the machine from the power supply first; the manual gives this as a caution. Then follow "Changing Needles" on PDF 21 / printed 16. Check when done: the flat side of the needle is to the rear, the needle is pushed up against the stopper pin, and the needle clamp screw is tightened firmly.
The manual lists "4 Bobbins (one in machine)" as Baby Lock part no. 102261000 (PDF 11 / printed 6).
Switch the machine off ("O") first: safety instruction 14 says so for threading the bobbin (PDF 2). The bobbin drops in under the hook cover plate on the bed: push the release button to the right, remove the cover plate and lift out the bobbin (PDF 25 / printed 20). To put it back, follow "Inserting the bobbin" (PDF 29 / printed 24). Check when done: the thread has slipped into the side notch of the bobbin holder, the right side of the hook cover plate clicks into place, and the threading matches the chart on the hook cover plate.
Turn off the power switch first; the manual gives this as a caution (PDF 19 / printed 14). The feet snap on: a lever on the back of the foot holder releases the foot, and a new foot locks in place when its pin lies just under the holder's groove and you lower the presser foot lifter. The holder itself comes off the presser foot bar with one setscrew; turn off the power switch before detaching or attaching it (same page).
Overedge foot C (822801001), zipper foot E (829801002), blind hemming foot G (820817015), buttonhole foot B (820801016) and automatic buttonhole foot R (753801004) (PDF 11 / printed 6).
Specifications apply to the named model and document edition. Read any setup, fabric or safety requirements with the answer.
Turn the power switch off and unplug the machine first; the manual gives this as a warning. Then follow "Cleaning the Hook Race and Feed Dogs" (PDF 83 / printed 78) and "Replacing the Bobbin Holder" (PDF 85 / printed 80). Check when reassembling: the knob of the bobbin holder fits next to the stopper on the race, and the needle plate's two guide pins go into their holes before its screw is tightened firmly.
The stitch width dial is numbered 0 to 5, and the higher the number, the wider the stitch; the pattern pages use settings up to 5 (for example smocking, "Stitch width: 5", PDF 73 / printed 68). For straight stitches the same dial moves the needle drop position between center (5) and left (0) (PDF 39 / printed 34).
The automatic buttonhole foot R sizes the buttonhole from the button placed in it, and its button holder takes buttons up to 1˝ (2.5 cm) in diameter (PDF 55 / printed 50).
If the machine does not work, the manual's causes are: it is not plugged in, thread is caught in the hook race, or the handwheel is pulled out for bobbin winding. If it is noisy, the causes are lint packed in the feed dog or collected in the bobbin holder; clean them as in "Cleaning the Hook Race and Feed Dogs" (PDF 83 / printed 78) (troubleshooting table, PDF 87 / printed 82).
Use the full source procedure and its safety precautions. A short referenced answer is not a substitute for service documentation or qualified electrical/mechanical repair.
Service-manual availability and service-only procedures remain unestablished unless separately cataloged and reviewed.
Answers use this model’s own instruction manual with its stated safety conditions. Where the manual contradicts itself or gives no value, no answer is given. No hands-on testing or replacement-part fit is claimed.
An unanswered question does not mean a part is incompatible. We have not confirmed enough information to recommend it.
Other names, regional versions, production history, further specifications and documents are not fully covered here. Their absence is not a “none exist” finding.
Each answer links to its exact evidence passage below. Open a reference to see the document and page. These links identify the source; they do not include the full manual or its diagrams. Document access is consolidated in the OEM library above.
Published by Baby Lock · no edition date printed; back cover "507-800-646 (E/S/F) / Printed in Taiwan" (physical 90); PDF metadata created 2010-04-14, modified 2010-06-16 · English, Spanish, French
Checked against the document text.
Document and available links →About this document →PDF page 15 · printed page 10
Open the source document · PDF p. 15 ↗ About this document link
Exact BL30A native model statement in the English power-supply section, physical 15 / printed 10. Binds this guide to BL30A only; the "(USA market only)" qualifier is printed in the same sentence and is kept with it.
PDF page 15 · printed page 10
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Only the stated document, exact BL30A model and cited English passage; no other A-Line series model, sibling, standardized-fit or retail-fit inference. WARNING box of "Connecting the Power Supply", physical 15 / printed 10.
PDF page 2 · printed page unnumbered (safety instructions)
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Only the stated document, exact BL30A model and cited English passage; no other A-Line series model, sibling, standardized-fit or retail-fit inference. English safety instructions, warning items 2 and 14, physical 2 (unnumbered).
PDF page 11 · printed page 6
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Only the stated document, exact BL30A model and cited English passage; no other A-Line series model, sibling, standardized-fit or retail-fit inference. Rows of the 17-row standard accessories table, physical 11 / printed 6; part numbers literal. On the rendered page each part number sits on the same row as its description (checked visually).
PDF page 25 · printed page 20
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Only the stated document, exact BL30A model and cited English passage; no other A-Line series model, sibling, standardized-fit or retail-fit inference. The owner answer points to these steps and does not rewrite them.
PDF page 29 · printed page 24
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Only the stated document, exact BL30A model and cited English passage; no other A-Line series model, sibling, standardized-fit or retail-fit inference. The owner answer points to these steps and states only the manual's checks. "unitl" is printed as is.
PDF page 21 · printed page 16
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Only the stated document, exact BL30A model and cited English passage; no other A-Line series model, sibling, standardized-fit or retail-fit inference. The owner answer points to these steps and states only the manual's checks.
PDF page 21 · printed page 16
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Only the stated document, exact BL30A model and cited English passage; no other A-Line series model, sibling, standardized-fit or retail-fit inference. Needle and thread chart, physical 21 / printed 16: 5 weight bands plus a topstitching row. Row alignment was checked on the rendered page: Very Light chiffon/georgette/fine lace/organdy (universal) and net/tulle (ball point) 9 (65); Light single knits, jersey, swimwear and tricot, blue tipped or ball point 11 (75); Medium double knits and stretch fabrics ball point 14 (90); Heavy denim, sailcloth, ticking denim needle 16 (100), double faced wool, heavy coating, fake fur and drapery universal 16 (100), leather and suede wedge point 16 (100) or 18 (110); Very Heavy canvas, duck, upholstery universal 16 (100); topstitching needle 14 (90).
PDF page 19 · printed page 14
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Only the stated document, exact BL30A model and cited English passage; no other A-Line series model, sibling, standardized-fit or retail-fit inference. The owner answer describes the lever, pin, groove and setscrew the manual names and points to its steps. No shank class is stated.
PDF page 19 · printed page 14
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Only the stated document, exact BL30A model and cited English passage; no other A-Line series model, sibling, standardized-fit or retail-fit inference.
PDF page 39 · printed page 34
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Only the stated document, exact BL30A model and cited English passage; no other A-Line series model, sibling, standardized-fit or retail-fit inference. The rendered dial illustration is numbered 0 to 5 (checked visually); no millimetre width is printed.
PDF page 73 · printed page 68
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Only the stated document, exact BL30A model and cited English passage; no other A-Line series model, sibling, standardized-fit or retail-fit inference. Smocking settings box, physical 73 / printed 68, with "Stitch width: 5" (the value sits on its own text line and is checked on the rendered settings box). Pattern pages use width settings up to 5.
PDF page 55 · printed page 50
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PDF page 83 · printed page 78
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Only the stated document, exact BL30A model and cited English passage; no other A-Line series model, sibling, standardized-fit or retail-fit inference. The owner answer points to these steps and does not rewrite them. The care section gives no owner oiling steps.
PDF page 85 · printed page 80
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Only the stated document, exact BL30A model and cited English passage; no other A-Line series model, sibling, standardized-fit or retail-fit inference. The owner answer states only these reassembly checks.
PDF page 87 · printed page 82
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Only the stated document, exact BL30A model and cited English passage; no other A-Line series model, sibling, standardized-fit or retail-fit inference. Troubleshooting table, 12 conditions, row alignment checked on the rendered page: "The machine does not work." causes 1-3 reference Page 10, Page 78 and Page 22; "Noisy operation" causes 1-2 both reference "Page 82" (the troubleshooting page itself).
PDF page 87 · printed page 82
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Troubleshooting table, physical 87 / printed 82: "The needle thread breaks." cause 1 and "Seam puckering" cause 2 reference "Page 24", which is "Inserting the bobbin" (physical 29); threading is on printed 26 (physical 31). Checked on the rendered page.
PDF page 5 · printed page unnumbered (Do´s and Don´ts)
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Do´s and Don´ts, items 5 and 6, physical 5 (unnumbered, English text).
PDF page 85 · printed page 80
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Replacing the light bulb, physical 85 / printed 80.
Alex Shick · Founder and editor. Corrections managed by Alex Shick.
This Baby Lock BL30A guide is based on documents, with AI assistance to organize the information. We have not tested or repaired the machine.
Check the document edition with each answer. A source review date is not a machine inspection date or a promise that the manual is the latest edition.
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Answers come from the documents named on this page. They describe those editions, and may not cover later changes to the machine or manual.