Before choosing a part
Compatibility essentials
Start with these documented details. Read the requirements with each answer before choosing a needle, bobbin or foot.
- Foot attachment
Not yet confirmed here: Manufacturer accessory group, Foot holder / mount, Foot interface / generation, Bobbin material, Bobbin diameter, Bobbin height, Hook type, Needle system / designation, Needle sizes by fabric and use, Maximum stitch / zigzag width, Feed system, Bobbin loading direction. What is still to confirm →
Model & names
- Model
- Singer SE340
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.
What do you need help with?
Which bobbin does this exact manual require?
Before you use this answer
Read the recorded source conditions and complete cited document with this answer. Separate identity, edition, compatibility and retail fitment limits remain in force.
Documents and page references →How do I change and orient the needle safely?
Before you use this answer
Read the recorded source conditions and complete cited document with this answer. Separate identity, edition, compatibility and retail fitment limits remain in force.
Documents and page references →What does the stated shank establish, and what fit remains unproved?
Before you use this answer
Read the recorded source conditions and complete cited document with this answer. Separate identity, edition, compatibility and retail fitment limits remain in force.
Documents and page references →What maximum sewing speed does this edition state?
Before you use this answer
Read the recorded source conditions and complete cited document with this answer. Separate identity, edition, compatibility and retail fitment limits remain in force.
Documents and page references →Does this exact manual call for lubrication?
Before you use this answer
Read the recorded source conditions and complete cited document with this answer. Separate identity, edition, compatibility and retail fitment limits remain in force.
Documents and page references →How do I connect, park and remove the embroidery unit safely?
Before you use this answer
Read the recorded source conditions and complete cited document with this answer. Separate identity, edition, compatibility and retail fitment limits remain in force.
Documents and page references →More questions (6)
How do I load and thread the bobbin safely?
Before you use this answer
Read the recorded source conditions and complete cited document with this answer. Separate identity, edition, compatibility and retail fitment limits remain in force.
Documents and page references →Which needle brand does the manual recommend?
Before you use this answer
Read the recorded source conditions and complete cited document with this answer. Separate identity, edition, compatibility and retail fitment limits remain in force.
Documents and page references →How do I release and attach the presser foot safely?
Before you use this answer
Read the recorded source conditions and complete cited document with this answer. Separate identity, edition, compatibility and retail fitment limits remain in force.
Documents and page references →What are the original dimension labels and net weight?
Before you use this answer
Read the recorded source conditions and complete cited document with this answer. Separate identity, edition, compatibility and retail fitment limits remain in force.
Documents and page references →What electrical rating does this edition state?
Before you use this answer
Read the recorded source conditions and complete cited document with this answer. Separate identity, edition, compatibility and retail fitment limits remain in force.
Documents and page references →What should I do if the LED lamp stops lighting?
Before you use this answer
Read the recorded source conditions and complete cited document with this answer. Separate identity, edition, compatibility and retail fitment limits remain in force.
Documents and page references →Needle, bobbin & presser-foot details
Read the model-specific requirements with each answer before choosing parts.
Needle
Needle insertion
- Turn off power before removing the needle. Choose appropriate style and size for the fabric.
Raise the needle fully, loosen the clamp screw and remove the old needle; insert with flat side to the back, push fully up and tighten the clamp screw. Do not use a bent or blunt needle.
Sources and pages
OEM brand recommendation
- Recommendation, not a universal needle-system or all-fabric size claim.
SINGER brand needles are recommended.
Sources and pages
System
Not yet verifiedNo single universal needle system established; fabric-specific chart is not generalized.
Bobbin
Class
- Exact shared SE300/SE340 manual; no Class15J or other substitute approval.
Use only SINGER Class 15 bobbins (transparent).
Sources and pages
Bobbin insertion
- Switch the sewing machine off (0) before threading the bobbin or making needle-area adjustments.
- Follow the complete cited procedure; no inferred material or dimensional equivalence.
Place the bobbin counterclockwise; hold it lightly while drawing thread through notch, follow the groove up and around the top, left then down; pull right to cut. Replace cover with left tabs in needle-plate holes and right side clicked down.
Sources and pages
Shank
- No exact item, adapter, width or clearance compatibility implied.
Low shank; optional SINGER presser feet and accessories must be designed for low-shank models.
Sources and pages
Changing
- Turn off the power switch first. Select the foot appropriate to the stitch or technique.
With needle highest and presser-foot lifter raised, push release lever toward you; place new foot pin directly under holder slot and lower lifting lever to snap into place.
Sources and pages
Specifications & documented facts
Specifications apply to the named model and document edition. Read any setup, fabric or safety requirements with the answer.
Performance & stitch capabilities
Maximum sewing speed
- Literal OEM rpm; not converted to stitches per minute. Exact retained edition.
800 rpm maximum.
Sources and pages
Machine dimensions and weight
- Machine values only, not embroidery-unit dimensions; labels retained without swapping length and width.
OEM labels: length 241 mm, width 512 mm, height 310 mm; net weight 8.4 kg.
Sources and pages
Electrical rating
- Exact retained manual specification, not an inferred regional cord or plug fit.
100–240 V ~ 50–60 Hz; nominal consumption 55 W.
Sources and pages
Maintenance specifications
Lubrication
- Disconnect the power line plug before any maintenance; do not touch the thread cutter.
There is no need to lubricate this machine.
Sources and pages
Lighting service
- No owner lamp-replacement procedure or authorization inferred.
The LED lamp does not require replacement; if it does not light, contact an authorized SINGER retailer for service.
Sources and pages
Embroidery
Unit connection and storage
- Hoop removal is essential before parking to avoid damage. Follow original page42 removal lever and packing instructions. No hoop-size compatibility inferred.
Connect the unit with machine off, slide it firmly into socket and level if needed. For storage select Park Position, remove the hoop when prompted and confirm; after carriage parks, turn power off and remove unit.
Sources and pages
Care, setup & service references
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.
Coverage and source-review limits
Answers refer to the named document editions and their requirements. They do not cover the complete model history or confirm unlisted relationships or replacement products.
Coverage and remaining questions
- Operating manual
- Listed below; check the edition and available link.
- Exact OEM part application
- No model-specific part application is listed here.
Still to confirm
An unanswered question does not mean a part is incompatible. We have not confirmed enough information to recommend it.
Needle — System: No single universal needle system established; fabric-specific chart is not generalized. Full recorded limit & conditions →
Other names, regional versions, production history, further specifications and documents are not fully covered here. Their absence is not a “none exist” finding.
Next evidence targets
- Complete illustrated task review, broader specifications and exact compatible items require additional accepted evidence; the cited subset is not a complete machine reference
These are research questions, not claims that the missing relationship exists.
Sources and page references
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.
Document and page references (10)
Editorial responsibility & corrections
Alex Shick · Founder and editor. Corrections managed by Alex Shick.
This Singer SE340 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.
Contact the SewIndex team or report a correction ↗
The correction address has been tested and its monitoring confirmed. We cannot promise a response or accept every suggested change.
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About this information
Answers come from the documents named on this page. They describe those editions, and may not cover later changes to the machine or manual.