20 Most Recent Janome MyLock 634D Mechanical Sewing Machine Questions & Answers

With the door open, the needle plate removed and no threads in the machine, slowly turn by hand one or two revolutions & take a close look at the motion of the loopers and the needle/s, are they colliding, or is the needle becoming jammed by the black guard surrounding the lower looper ?

Ensure there are no threads or fabric debris jammed anywhere.

If it is "new" and under warantee, it would be worth a call to the dealer asking for their advice and see if they will take a look at it for you........arrange to meet with the technician if possible.

Janome MyLock... | Answered on Feb 15, 2019

It is impossible for a looper to come unthreaded if you are holding one end and the other is still feeding off the spool. Somewhere a thread broke - must be either the upper looper or the needle. Try completely re-threading your machine. Many machines have an "order" they prefer to be threaded. Try starting from the right tension guide and work to the left.

Janome MyLock... | Answered on Oct 08, 2018

Go to this web page:


To the right of the word Specifications, which is in blue, there is a download manual link.

Janome MyLock... | Answered on Dec 28, 2017

I think I would get another opinion. Sometimes you run across lazy technicians or those who would like to talk you into buying a new machine. Of course, if your machine is older, it could be difficult to locate replacement parts, but getting that info from another technician will confirm the first opinion.

Janome MyLock... | Answered on Nov 18, 2017

Ooh, I've heard it is difficult timing a serger because there's more involved than a sewing machine.

You can try looking at videos and web sites:

serger timing Google Search

Janome MyLock... | Answered on Nov 16, 2017

I would suggest that you check the needles again, make sure they are both fully up into the needle housing. Also they should be at different heights in order to form the stitch sequence.

It is important that you thread the loopers first in the sequence shown in your manual, then the needles. So you may need to recheck the threading again and make sure the threads are in all the eyes correctly, especially the lower looper. Also some overlockers, have a sliding eye on the lower looper for ease of threading, if yours does, make sure it has been slid back to normal operating position.

When you have checked the threading up, take all four threads under the raised pressure foot and make sure that the upper looper thread and lower looper threads are not crossing over each other. Lower the pressure foot and try to chain off again.
I hope this helps you to resolve the issue.

Janome MyLock... | Answered on Feb 09, 2016

this very same thing happened to my flat machine turned out to be a piec of material jammed in the workings also wrong oil used or it might be thread jammed try and see

Janome MyLock... | Answered on May 02, 2015

If you dont have a manual then this page will allow to to download it for free. Pretty straightforward and easy to read

Janome MyLock... | Answered on Feb 08, 2015

The manual is located on the manufacturer's website, here. Click "Specifications" then "Download Manual. It is a PDF.

Janome MyLock... | Answered on Feb 03, 2015

Some machines dont need oil consult manual.

Janome MyLock... | Answered on Aug 28, 2014

Put number jn search engine and it should come up .....634D manual .....like so

Janome MyLock... | Answered on Aug 28, 2014

Follow the link and you can view the instructions online

Janome MyLock... | Answered on Jul 22, 2014

Do you not have your instruction book? It will have the instructions in it. Often there is also a diagram on the front cover flap of the machine. How far away from any sewing machine dealer are you? They should be able to show you how to thread at no cost.Let me kNow how you go.

Janome MyLock... | Answered on Jul 01, 2014

At this stage, the value is whatever the market will bear. Their is no real value in 2nd hand sewing machines or overlockers. Try looking on ebay for some guidance. Good luck

Janome MyLock... | Answered on Jun 13, 2014

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