While quilting I heard the machine hammer--I stopped it and changed out the bobbin to only only have the thread not pick up from the bobbin. Now I can not sew the the machine.

Hassy

• 1388 Answers
• Posted on Feb 24, 2008

SOURCE: bobbin thread bunching

I agree with brodering about the damage to your bobbin case, it should be smooth all over, as the thread travels across the top surface to form a stitch, and the small step on the underside locates it as the hook spins underneath.

Needle strikes often compromise the surface, as will the hook colliding with the under surface... and although it is possible to gently polish off the damage with fine grain wet & dry (black) sand paper (emery paper) there are limits to the success depending on the degree of damage.

While on the subject, ensure the bobbin case and hook race beneath are clean and free of lint or thread.

For a guide as to setting tensions and the rest, look here

SOURCE: Janome sew mini will not pick up bobbin thread

Oil the machine first. Then, determine whether or not you need any parts at all.

SOURCE: The machine won pick up the bobbin thread, it jams when starting

wont pick up thread from bobbin

SOURCE: needle not picking up bottom thread

Remove the needle plate and the bobbin case.

Ensure that the needle is inserted all the way up into the needle clamp.

Set the machine for straight stitch, center needle position.

Slowly turn the handwheel in the normal sewing direction and observe the following hook timing setting:

When the needle reaches it's lowest point and travels up 3.5mm, the point of the hook should be directly behind the needle, or at least within 1 or 2mm.

Another view is as the hook passes the needle, it should pass the needle slightly above the eye of the needle.

If the timing looks good, use some alcohol on a bit of cloth to clean the hook, careful around the tip of the hook as it is very sharp.

If the hook timing is off, you will need to take it to a knowledgeable service person as there are several possible solutions and several other related adjustments which will need to be made.

SOURCE: I just bought a janome mini sewing machine. I

First, in order to get the bobbin thread up, you have to turn the wheel backward, not forward. If you try this, and it is not the problem, keep going.

Next you need to check the needle. There is a screw on the right side of the needle carriage right underneath the underside of the top...unscrew this and the needle should come right out. The flat side of the needle shank should go towards the back of the machine. If it isn't, switch it so that it is and try again.

If this doesn't solve your problem, what has happened is that the gears in the machine have gotten out of alignment. There is an easy fix:

Take off the plate that covers the bobbin chase...there are two screws one on each side. Remove these...you need a stub screwdriver, because regular ones will not fit under there.

Remove the bobbin carriage and the bobbin, making careful note of how they fit back in. Take a picture before disassembling it so you have a reference.

The part that carries the thread around the bobbin is still in the machine. Turn the wheel and you will see it rotate. What has happened is that the needle is not going down in the machine at the right point because someone kept sewing after it jammed and one gear kept going while the other one didn't and now it is out of alignment. These machines have plastic gears and the can slip past each other if you aren't careful not to stop immediately when they jam.

To fix it, you are going to have to do some trial and error. Grab the rotating part of the bobbin chase and hold it firmly. Rotate the wheel forward until you hear it click once. Then rotate the wheel backward again and see if it grabs the top thread. If it doesn't, repeat holding the bobbin chase and turning the wheel forward until it does.

Once you have the gears basically aligned, you will need to reassemble everything. Put the face plate back on and put at least one of the screws in all the way. The face plate holds the bobbin chase in correctly and if you don't fasten it it will not work correctly.

Now try sewing. If it starts to jam, stop immediately, cut the threads and look at the back. If it's a loopy mess, you are going to have to dissamble as before and again grasp the bobbin chase and turn the wheel forward one more click, then reassemble and try again. Eventually, you will find exactly the right alignment and the machine will sew perfectly.

I just had to make this fix on my own machine...I didn't want to take it in for repair because the bench fee alone would cost as much as the machine did!

There are some great video's on YouTube for help with threading the machine...look for StampTV and you should find them. Good luck!