Janome MyLock 634D Mechanical Sewing Machine - Answered Questions & Fixed issues

Sounds like a tension issue.

Check your tension units and thread guides are clean and free of lint....a rag moistened with methylated spirit (denatured, surgical etc) run between the disks will help.

Normal factory tension setting = 3 for all dials although resetting this style of tension unit is, frankly, awkward, so if it ends up being other than 3, don't worry too much, just write it down somewhere handy.

Start with all at tension 3 and try using 4 different colours of thread and sew a scrap to see the balance of the tensions to more easily locate any that are loose.

Ideally, the 2 needle threads should appear as secure dots not at all "loopy", while the looper threads should meet neatly at the edge and be a firm join without pulling at the edge on one side or the other.

Get the needle threads right first, then small adjustments to balance the looper threads....after a few adjustments you will probably have it back to normal.

If you want any more help with this, just drop a line through the "Contact Us" page at www.bargainbox.com.au

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.

It shows in the beginning pages of the manual how to assemble the machine. https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0ahUKEwjHoOWmm8TYAhXDw1QKHfu9DiAQFggnMAA&url=http%3A%2F%2Fjanome.com%2Fsiteassets%2Fsupport%2Fmanuals%2Fsergers%2Finst-book-634d.pdf&usg=AOvVaw2nMzrZhmnL1imJDHhkHGJZ

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.

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

If you dont have a manual then this page will allow to to download it for free. Pretty straightforward and easy to read http://janome.com/siteassets/support/manuals/sergers/inst-book-634d.pdf

The manual is located on the manufacturer's website, here. Click "Specifications" then "Download Manual. It is a PDF.
http://content.janome.com/index.cfm/Machines/Sergers/MyLock_634D

Some machines dont need oil consult manual.

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

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.

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

Im not familiar with the huskylock but I use woolly thread on both loopers with good tension and less than a medium length on the needle stitch and using the differential feed. Try u tube as there are several good links for sewing stretch.

Is something jammed? Does it move at all? Pull out the threads and check all tensions for a blockage. Does it move at all when not threaded?

http://content.janome.com/userfiles/file/inst%20book%20634D.pdf Change the needle plate setting knob to rolled hem, starting on p. 28

Time to get it serviced.

You can get the manual here - http://ifixmachines.com/Janome-Model-634D/View-all-products.html

Here is a manual - http://ifixmachines.com/Janome-Model-634D/View-all-products.html

The thread guide should be inside the door.

Lift the antenna and presser foot. Turn the tensions to zero, if possible.

Turn the handwheel so the upper looper is at the highest point - there may be a mark on the side of the serger to align with a mark on the handwheel.

Begin threading from the right to the left, beginning with the lower looper.

Ok,... before you re-thread the loopers, always unthread the needles.Thread the needles last.

Ebay item 160421822703

The needles required will be listed in your manual, if you don't have a manual then buy any needles recommended for sergers/overlockers. Or check on the Janome website.