Jamming Lss505 sewing machine

If your Singer Heavy Duty 4423 is jamming when you try to sew in reverse, it may be due to a few issues:

1. Thread tension: Make sure your thread tension is not too tight, which can cause the thread to bunch up and jam the machine. Try loosening the tension slightly.
2. Needle: Make sure you are using the correct needle for the fabric you are sewing. A dull or damaged needle can cause the machine to jam.
3. Bobbin: Check your bobbin to make sure it is threaded correctly and is not damaged.
4. Machine maintenance: It's important to keep your machine clean and well-oiled. A buildup of lint or dirt can cause the machine to jam.
5. Sewing speed: Slow down when sewing in reverse. Sometimes going too fast in reverse can cause the machine to jam.

If none of these solutions work, it may be a mechanical issue with the machine and it's best to take it to a professional for repair

You might try checking out some of the sites here:

Quick Start Guide for Sewing Machine LSS505

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try changing the needle--make sure it's the correct one for the fabric
being sewed
rethread the machine ---using every thread guide
try using a different bobbin
try turning the bobbin over the other direction
clean under the needle plate and in the bobbin area for lint
also could be a timing problem and the machine would need to be
checked at a sewing machine repair shop

Try these suggestions
1. Change needle
2. Rethread the machine--top --make sure to use every thread guide
3. Take the bobbin out --make sure it is inserted correctly into the bobbin
Case, & make sure the bobbin is turned the correct way
4. make sure the thread has not come off the thread take up lever
5. Clean under the needle plate & in the bobbin area for lint or threads

try changing the needle
rethread the machine top & bobbin
make sure the bobbin is not fully wound, usually wind the bobbin
3/4 full, when I was sewing last night & rewound the bobbin & I wound
it to full & it jammed twice on me.
make sure the top thread has not come off the thread take up lever
clean under the needle plate & in the bobbin area

try changing the needle,,make sure the needle & thread & fabric are correct for each other
make sure the bobbin is turned the right way
it's also possible that when the needle gets jammed or broken that the machine can become out of time
and would have to be retimed at a sewing machine shop

put in a new needle
clean under the needle plate & bobbin area for loose threads & lint
make sure the bobbin is not warped
try a different thread
of the problem still happens, then it needs to be serviced

Check to make sure the needle is up all the way into the clamp. If the bobbin case now has sharp edges from the impact. polish away the sharpness with an emery board or simular. Once a needle is hit it canot be used again so always use a fresh needle.

Change needle
Clean under needle plate where feed dogs are for lint
Clean bobbin area for lint or loose threads
Rethread machine top thread make sure to get every thread guide
& bobbin is threaded correctly & inserted in the bobbin case or shuttle correctly
Check tension 3 or 4 is usually good

after you try all this & it keeps jamming then it may need to be serviced

kyoungblood4
Are you making sure that your pressure foot is up when you thread the upper thread? If it isn't then your thread is not seating correctly in the tension disks. It will then be loose and make a birds nest(mess) under what you are trying to sew. The other thing to check is which way you are putting the bobbin into the bobbin case, different machines do it different ways. Some want the thread to come out of the case in the same direction as the slot on the case and some want it to come off in the opposite direction.

Guest,
Probably when your son broke the needle he knocked it out of time. You will need to have a sewing machine technician to repair that.

Hope this has been helpful for you bothl Liz M