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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.
ELx705CF in 90/14 or 80/12. The manual names the brand as Schmetz in one place and Organ in another; the ELx705CF system is the same in both. Other needle systems are not confirmed here.
Documents and page references →Switch the machine to “O” (off) first, and use “Snap-On Presser Foot” on PDF page 12 (printed page 10). The manual gives no shank class and does not say which third-party feet fit.
Documents and page references →Sew a test after changing any tension setting; the right setting depends on the fabric, thread and stitch.
Documents and page references →No part codes are printed for them. The manual says they are available from a Baby Lock retailer; no retailer fit is claimed here.
Documents and page references →The manual says no and names no oil type; if oil ever seems needed, it refers owners to a Baby Lock retailer.
Documents and page references →Positions follow the needle identification on PDF page 40 (printed page 38). The technical data’s chain-stitch line labels left and right the other way round and is not used.
Documents and page references →Switch the machine to “O” (off) first. Use “To Replace a Needle” on PDF page 40 (printed page 38) and its needle viewing window check.
Documents and page references →The named brands are the manual’s recommendations, not a compatibility list. Specialty threads are covered on PDF pages 33–37 (printed pages 31–35).
Documents and page references →Unplug the main power cord first, as step 1 says. Use “TO REMOVE NEEDLE PLATE” on PDF page 42 (printed page 40), then check that the lock pin is flush and no needle touches the sides of the needle plate hole.
Documents and page references →Manuals, parts books & more
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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 colophon printed; PDF metadata created 2009-01-21, modified 2009-02-03
Models referenced here: Baby Lock BLCS
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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.
ELx705CF needles. The machine comes set up with size 90/14, suitable for most medium and heavyweight fabrics; for lightweight fabrics the manual says to use size 80/12 ELx705CF needles. The ELx705CF is a semi-ballpoint design, suitable for knits and wovens.
C-1 (left) can be used for chain stitch, left narrow cover stitch, wide cover stitch or triple cover stitch. C-2 (center) can be used for chain stitch, left narrow cover stitch, right narrow cover stitch or triple cover stitch. C-3 (right) can be used for chain stitch, right narrow cover stitch, wide cover stitch or triple cover stitch. Stitch widths are 3.0 mm for narrow cover stitch and 6.0 mm for wide or triple cover stitch.
Switch the machine to "O" first; safety instruction 14 covers changing needles (PDF 2). Then follow "To Replace a Needle" on PDF 40 / printed 38. The manual's check: look in the needle viewing window. A dropped needle lands on the needle-drop drawer at the bottom of the machine (same page).
The machine uses a snap-on presser foot. Switch the machine to "O" first; safety instruction 14 covers changing the presser foot (PDF 2). Then follow "Snap-On Presser Foot" on PDF 12 / printed 10. Raising the presser foot lever also lowers the feed dogs, and the last replace step re-engages them with the hand wheel (same page).
Specifications apply to the named model and document edition. Read any setup, fabric or safety requirements with the answer.
The manual lists nine optional chain/cover stitch accessories, with no part codes printed: Belt Loop Folder (3/4" & 1-1/2")-(19mm & 38mm); Double Fold Bias Binder (1-1/8" & 1-3/8")-(28mm & 36mm); Elastic Gatherer Bracket; Elastic Guide for Gatherer Bracket (1/4", 3/8" & 1/2")-(7.5mm, 10mm, & 13mm); Fabric Guide; Pintuck Foot with 2 guides; Plain Hemmer (1/4" & 1/2")-(7mm & 13mm); Single Downturn Feller (1/4", 5/8" & 1")-(7mm, 16mm & 25mm); Knit / Woven Double Fold Bias Binder (8mm, 10mm, &15mm). The Knit / Woven Double Fold Bias Binder uses the front two attachment screw holes; the other optional accessories use the back two holes with the included Accessory Adapter and Guide Fixing Screws (PDF 9 / printed 7).
No. The manual says the major moving parts are well protected and do not need to be oiled. Brush lint off the needle bar, the feed dog mechanism and the looper often, and if the machine seems to need oil, ask a Baby Lock retailer (PDF 42 / printed 40).
Unplug the main power cord first, as step 1 says. Then follow "TO REMOVE NEEDLE PLATE" on PDF 42 / printed 40 (a 1.5 mm allen screwdriver is used). The manual's checks: the needle plate lock pin is flush with the needle plate, and needles C-1, C-2 and C-3 do not touch either side of the needle plate hole (same page).
From left to right the needle tension dials are Red for the C1 needle, Yellow for C2 and Green for C3; the chain looper dial is Blue. Each dial runs from 0 to 9. The fabric and thread determine the needle dial settings, and the fabric, thread and stitch determine the chain looper setting, so sew a test after changing them (PDF 14 / printed 12). Lifting the presser foot releases the tension automatically (PDF 3 / printed 1).
The manual recommends 100% long-staple polyester thread, cross-wound on a cone, and names Maxi-Lock and Metrosene as recommended brands. Good-quality cotton or cotton-covered polyester threads sew well but produce more lint (PDF 9 / printed 7). Specialty threads are covered on PDF 33-37 / printed 31-35.
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 colophon printed; PDF metadata created 2009-01-21, modified 2009-02-03 · English
Checked against the document text.
Document and available links →About this document →PDF page 1 · printed page cover (unnumbered)
Open the source document · PDF p. 1 ↗ About this document link
Exact native cover line of the BLCS instruction manual, physical 1 (unnumbered cover). The model line binds this manual to BLCS only; it is not BLCS-2.
PDF page 2 · printed page unnumbered
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Safety instruction 14, physical 2 (unnumbered front matter). The safety page uses the generic words "overlock machine"; only the switch-off instruction is used.
PDF page 3 · printed page 1
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Only the stated document, exact BLCS model and cited passage; no BLCS-2, sibling, standardized-fit or retail-fit inference.
PDF page 8 · printed page 6
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Only the stated document, exact BLCS model and cited passage; no BLCS-2, sibling, standardized-fit or retail-fit inference. Rows of the 17-row included accessories list, literal as printed.
PDF page 9 · printed page 7
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Only the stated document, exact BLCS model and cited passage; no BLCS-2, sibling, standardized-fit or retail-fit inference.
PDF page 43 · printed page 41
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Only the stated document, exact BLCS model and cited passage; no BLCS-2, sibling, standardized-fit or retail-fit inference. The technical data names Organ where physical 8 and 9 name Schmetz.
PDF page 40 · printed page 38
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Only the stated document, exact BLCS model and cited passage; no BLCS-2, sibling, standardized-fit or retail-fit inference.
PDF page 43 · printed page 41
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Only the stated document, exact BLCS model and cited passage; no BLCS-2, sibling, standardized-fit or retail-fit inference. The chain-stitch labels in this line conflict with physical 40 and the contents page.
PDF page 4 · printed page 2
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Table of contents, physical 4 / printed 2.
PDF page 40 · printed page 38
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Only the stated document, exact BLCS model and cited passage; no BLCS-2, sibling, standardized-fit or retail-fit inference. The owner answer points to these steps and states only their completion check; it does not rewrite them. The manual calls the machine a serger in this note; the wording is quoted, not reclassified.
PDF page 12 · printed page 10
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Only the stated document, exact BLCS model and cited passage; no BLCS-2, sibling, standardized-fit or retail-fit inference. The owner answer points to these steps and does not rewrite them. No shank class or third-party foot fit.
PDF page 43 · printed page 41
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Only the stated document, exact BLCS model and cited passage; no BLCS-2, sibling, standardized-fit or retail-fit inference. No shank class.
PDF page 14 · printed page 12
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Only the stated document, exact BLCS model and cited passage; no BLCS-2, sibling, standardized-fit or retail-fit inference. The illustration labels the left, center and right needle tension dials (C1, C2, C3) and, separately, the chain looper tension dial.
PDF page 9 · printed page 7
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Only the stated document, exact BLCS model and cited passage; no BLCS-2, sibling, standardized-fit or retail-fit inference.
PDF page 33 · printed page 31
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Only the stated document, exact BLCS model and cited passage; no BLCS-2, sibling, standardized-fit or retail-fit inference.
PDF page 37 · printed page 35
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Only the stated document, exact BLCS model and cited passage; no BLCS-2, sibling, standardized-fit or retail-fit inference. Heading of the specialty thread chart that closes the specialty-thread section (physical 33-37 / printed 31-35).
PDF page 9 · printed page 7
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Only the stated document, exact BLCS model and cited passage; no BLCS-2, sibling, standardized-fit or retail-fit inference. All 9 optional accessory rows as printed; no part codes are printed for them.
PDF page 42 · printed page 40
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Only the stated document, exact BLCS model and cited passage; no BLCS-2, sibling, standardized-fit or retail-fit inference.
PDF page 42 · printed page 40
Open the source document · PDF p. 42 ↗ About this document link
Only the stated document, exact BLCS model and cited passage; no BLCS-2, sibling, standardized-fit or retail-fit inference. The owner answer points to these steps and states only their completion checks; it does not rewrite them.
PDF page 3 · printed page 1
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Physical 3 / printed 1.
PDF page 43 · printed page 41
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Technical data, physical 43 / printed 41; literal as printed.
PDF page 2 · printed page unnumbered
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Safety DANGER item 2, physical 2 (unnumbered).
PDF page 41 · printed page 39
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Replacing light bulb, physical 41 / printed 39.
Alex Shick · Founder and editor. Corrections managed by Alex Shick.
This Baby Lock BLCS 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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