Question about Janome MyLock 644D

1 Answer

Stuck Needle Plate Setting Knob

Plastic red knob will not move to R position on my Janome My Lock 644D machine. Everything appears clean. Loosened plate but cannot figure out why mine does not move at all. What to do?

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  • carellb
    carellb Nov 06, 2012

    Thanks everyone for giving your solutions. If I had read the manual more thoroughly I would have found the answer there. I was to use my left hand to manipulate 2 pieces which removed the barrier that did not allow the piece to move. Thank you for trying to help, it was appreciated.



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  • Janome Master
  • 1,564 Answers

Spray it with Liquid Wrench (NOT WD40!!) and let it set for a day or so.

Posted on Nov 06, 2012


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SOURCE: Janome Memory Craft 9500 Troubleshooting

The solution that I found last night was the thread tension. I have never touched the dial, only had it set on 'auto." When I started playing with it, I realized the top thread should be really easy to pull through the machine and it wasn't. I started turning the dial (to 3 or 4) and the thread slid through the machine perfectly. No more birds nest! I really thought it was bobbin initially because of the horrible sound it was making.

Posted on Jun 05, 2008

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SOURCE: Janome Needle plate and needles hitting something underneath

The broken pins are called chaining pins and are tricky for the home user to replace without risking damage to the needle plate as they are difficult to remove and the tiny burr used to hold them firm can easily open up and no longer grip the pin.
There are only a couple of things under the needleplate that are likely to collide with the needles. 1. Lower looper - with the needles 2. Both Loopers colliding with each other - not with the needles 3. Needle guards attached to lower looper - with the needles 4. Fixed Needle guard - with the needles
If you remove the needleplate and VERY gently turn the handwheel you should be able to see and feel where the collision is occuring and have a better idea of the issue.
I would strongly advise that you do not try to operate the machine until you are sure that the colliding components are adjusted. Broken loopers are approx $65 AUD and guards, tho' only about $20 AUD require some finesse in adjustment. Chain Pins approx $6 AUD
My recommendation is to speak with your local Janome dealer for advice and an approximate price to repair, replace or adjust as the case may be.
Your country's Janome website is certain to have a Dealer Locator page to list the nearest to you.
This is one occasion where it is sensible to call on the people who do these things routinely rather than try to DIY and make a more expensive hash of it.

Posted on Nov 22, 2008

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SOURCE: I am trying to locate a power cord for my Janome

Use this link to go to the Janome Global Site
Select your country then look for the Dealer Locator page to find your nearest stockist
If you are in Australia, we can send you one, just drop us a line.
Bargain Box

Posted on Apr 12, 2010

SOURCE: I have a Janome 6260. My machine sewed great, but

I've had the Lo come on my screen of my sewing machine also, but normally when I turned it off it corrected the jam up.
Lo- A button is pressed when the machine halts due to a overload
wait 15 seconds to recover
if thread jamming causes the overload, remove the tangled thread
check the bobbin area for lint & loose threads
also check to see if the bobbin is warped
check you needle to see if it's bent-roll on a flat surface to see if it rolls correctly
if it's blunt it makes a popping sound when going thru fabric
let me know if these suggestions help

Posted on Sep 23, 2010

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