I have model 1477 and the spool thread does not want to thread through the bobbin correctly, I keep breaking needles and the machine is useless. The thread is getting caught up under the machine in otherwords,

HI Elizabeth.
Found this on the internet.
There could be several things that could cause the machine not to pick up the bobbin thread.

• The upper thread could be tangled.
  Remove the thread completely from the machine.
  The correct size spool cap should be used for the size of the thread spool.
  Re-thread the machine according to the directions in the manual.

One Point Advice Place a spool of thread on a spool pin.
One Point Advice Upper threading

• Remove the bobbin and make sure the bobbin is threaded properly in the shuttle race.
  Remove any loose threads or lint in the shuttle race.

One Point Advice Installing a bobbin into a bobbin case

• You could be holding the needle thread too tight.
  Hold the thread lightly to keep the end from going down into the shuttle.
• The needle could be thread incorrectly.
  Thread the needle eye from the front to the back.
• The needle could be bent or improperly inserted.
  Install a new needle with the flat side of the needle facing the back.
• if this does not help you go to this link.

won pickup the bobbin thread Google Search

Could be a multitude of things. Use only good quality thread--no old or bargain bin threads. Try a different brand of thread--some machines prefer certain brands over others. The needle and thread should be compatible--ie needle eye shouldn't be too small for thread weight. Burr catching the thread and breaking it. Upper tension too tight.

Remove the upper thread, RAISE the presser foot and rethread from the beginning. Verify the thread is not looped incorrectly in the thread path, like around a thread guide or around the spool pin. Is the thread snagging on the thread spool itself? Do you see the thread tightening as you sew and eventually it breaks? This indicates it is catching somewhere between the needle and spool. Is it shredding at the needle eye? This indicates the needle eye is not suitable for the thread being used.

Watch where the thread is breaking. This will sometimes give you a clue where the problem exists.

Sewing Machine Problem 1 Thread Breakage

Why Does My Thread Keep Breaking While Sew

All About Needles

You do not say which machine you have. As for a straight stitch, make sure the needle is central and not in zig zag mode.
The thread can break for several reasons, such as. Incorrect tension.
:Wrong thread for the material.
: Thread in bobbin different from the top thread.
:Old thread.
: Not threaded correctly.
: Needle not inserted correctly, or incorrect needle.or the thread could be wound around the spool holder pin,
Try removing the spool and turn it around.
Hope this helps.

The top thread breaks
1. the needle thread is not threaded properly
2. The needle thread tension is to tight
3. The needle is bent or blunt
4. The needle is incorrectly inserted
5. The needle thread & the bobbin thread are not set under the presser foot when starting to sew
6. the threads were not drawn to the rear after sewing
7. The thread is either to heavy or to fine for the needle
8. Try a different spool or cone of thread
Bobbin thread breaks
1. There is a right way & wrong way to insert the bobbin in the case --when you insert the bobbin in if it doesn't stitch correctly turn the bobbin over see if that helps or bobbin case is not inserted correctly
2. Lint has collected in the bobbin holder
3. The bobbin is damaged & doesn't turn smoothly
4. Lower thread tension is two tight

The top thread breaks

1. the needle thread is not threaded properly

2. The needle thread tension is to tight

3. The needle is bent or blunt

4. The needle is incorrectly inserted

5. The needle thread & the bobbin thread are not set under the presser foot when starting to sew

6. the threads were not drawn to the rear after sewing

7. The thread is either to heavy or to fine for the needle

8. Try a different spool or cone of thread

Bobbin thread breaks


1. There is a right way & wrong way to insert the bobbin in the case --when you insert the bobbin in if it doesn't stitch correctly turn the bobbin over see if that helps or bobbin case is not inserted correctly


2. Lint has collected in the bobbin holder


3. The bobbin is damaged & doesn't turn smoothly


4. Lower thread tension is two tight

The top thread breaks
1. the needle thread is not threaded properly
2. The needle thread tension is to tight
3. The needle is bent or blunt
4. The needle is incorrectly inserted
5. The needle thread & the bobbin thread are not set under the presser foot when starting to sew
6. the threads were not drawn to the rear after sewing
7. The thread is either to heavy or to fine for the needle
8. Try a different spool or cone of thread

Upper thread breaks
1.the needle may be bent or damaged--try rolling the needle on a flat surface to see if it's bent or not
Or the needle could be in backwards
Correct needle insertion
Correct needle insertion is mandatory for proper use of sewing machine.
Raise the needle bar to the highest point, then loosen the clamp screw to remove the old needle, place the new needle in the clamp with the flat side to the back of the machine or if using a round needle--the groove in the needle should face away from the shaft.
Push the needle all the way up to the stop or as far as it will go, then tighten the needle clamp screw
2.upper tension may be to tight--try 3 to 5
3.thread may be hanging up in bobbin case--check area for loose threads or lint
???
Lower thread breaks
The most probable cause of lower thread breaking is improperly wound bobbin
1.always start with a empty bobbin
Never wind one color over the other
2.choose thread that is identical in color & type as the one to be used for upper threading
3.wind the bobbin evenly across & in layers
4.don't wind the bobbin so full that it would be tight & hard to insert into bobbin case
5.bent bobbin--replace
6.lint built up in the bobbin case--frequent cleanings will eliminate this problem, the more often you use the sewing machine the more often it needs to be cleaned
7.thread catching on the bobbin spring or latch on bobbin case, check to see that the bobbin is inserted completely & correctly, & that you are using the right kind of bobbin

for the top & bobbin thread keep thread tails of 3 to 6 inches long pulled behind the needle before you start sewing

yes,sometimes the thread will get caught on the spool, you might think about getting a extra holder that sets behind the machine to hold those spool's that the thread get caught on, that's what I did.

Hello

Primary causes of upper thread breakage:


-- misthreading: pull all the thread off and thread again, using the manual, step by step. Read each step aloud before you do it. (sounds dumb, but helps.) (And make sure you thread the takeup lever!)

-- thread has wrapped itself around a thread guide or spool pin from one of the breaks. Take the spool off the machine before rethreading.

-- bad or damaged needle. Replace with the right size for the fabric, turned correctly (backwards needles skip stitches)

-- dirty machine, especially in the bobbin case area: review cleaning instructions and do it, using brush and vacuum only

-- bad/cheap thread: should not be slubby or break easy. Try another spool.

-- top thread tension too tight. 4 is normal for most fabrics, most stitches.

Tips;

1) do a light cleaning (brush and vacuum) every day you sit down to sew.

2) replace the needle if you hear it hit metal, if you've got a really bad thread jam, if you see it deflect as you sew (for instance, sewing over the side seam on jeans when hemming). Replace every 3-8 hours of actual stitching time anyhow.

3) buy good quality thread

4) when your machine isn't sewing right, stop; take all the thread off of/out of the machine (bobbin out of bobbin case, spool off spool pin) and give it a quick cleaning. Rethread from scratch, carefully. If that doesn't fix it, do it again, then replace needle and rethread one more time, manual in hand (yah, even if you've threaded it 8 million times before). #4 is curative about 98% of the time. The other 2% often requires professional attention.

It could be the thread is hanging up and breaking the needle.

Check the thread spool for nicks - turn the spool so the thread is feeding from the bottom of the spool.

Watch the thread as the machine stitches, if the thread is pooling at the base of the spool, use a thread net on the spool.

Open the needle plate and remove the bobbin and bobbin case - clean out any lint or thread snips that may have accumulated there - do this often to help the machine work as it should.

Hello,
Here are some things to try.

If it's Your upper thread breaking:

* Rethread your machine
An incorrectly threaded machine can cause thread to break.

* Decrease the tension on your machine
The tension may be too tight for your thread.

* Reposition the spool of thread on the spindle
You know that little nick in the edge of a spool that’s used to hold the loose end of the thread? Your thread may be catching on this nick as you sew. Place your spool so that this nick rests against the bottom of the spindle.

* Reinsert your needle
Make sure it goes all the way into the holder and that it’s positioned correctly, usually with the flat side away from the bobbin, but consult your machine’s manual to be sure.

* Change your needle
Your needle may be bent or dull. The eye of your needle may have a nick in it that’s cutting the thread as you sew. Or your needle may be too small for the thread you’re using, in which case, change to a larger needle. And make sure your needle is appropriate for the weight and type of your fabric.

* Change your thread
Your thread may be weak. Or your thread may be fuzzy and irregular, causing it to catch in the eye of your needle as you sew. Cheap thread tends to be weak and fuzzy, so make sure to
use a quality, brand name thread. And if you’ve been sewing with an older cotton thread, which can dry out and become brittle with age, try a newer thread.

* Check your presser foot for damage to the needle hole
A burr in your presser foot’s needle hole may be cutting your thread. Gently smooth any rough spot you find with an emery cloth.


* There may be a burr in one of your thread guides, in which case, you may need to have your
machine professionally serviced to have the part replaced.


If it's Your lower thread breaking:

* Reinsert your bobbin
Your bobbin may not be seated properly in its case.

* Rethread your bobbin
Your bobbin may be threaded incorrectly or the thread may be tangled.

* Remove some of the thread from your bobbin
If your bobbin is very full (if it’s hard to insert into the case, it’s too full), this may be keeping your bobbin from turning smoothly.

* Rewind your bobbin thread
If your bobbin thread is wound unevenly, this may be keeping your bobbin from turning
smoothly.

* Try a new bobbin
There could be a nick along the edge of your bobbin spool that’s catching your thread as you sew.

* Clean the lint from your bobbin case
Lint in your bobbin case could be keeping your bobbin from working properly.

* Check the needle hole in your throat plate for rough spots
A burr in the needle hole of your throat plate, usually caused by the needle hitting the throat plate, could be cutting your thread. Gently smooth any rough spot you find with an emery cloth.

I hope one of these solutions work for you.