Threading the Bobbin

Not sure if you are having problems with the bobbin winder or threading the bobbin. This may help:

Nelco JA 38 Sewing Machine Threading Diagram

To avoid awful thread nests under the fabric, be sure to ALWAYS RAISE the presser foot when threading the top thread.

Interestingly, the bobbin threading instructions (above) show the bobbin loading into the bobbin case so it turns COUNTER-clockwise. This is the opposite of instructions for most machines. You can probably try both, the clockwise or Counter-clockwise,and see if one works better than the other.

Be sure to use fresh, good quality sewing machine oil or Tri-Flow Synthetic Oil on your machine. Open it up, while gently wiggling the handwheel, drop a couple drops of oil every place that metal rubs against metal. Avoid plastic or rubber parts! You may even find little round holes throughout that are oil ports. Be sure to get the area around the needlebar, presser foot lifter, feed dogs, the bobbin area, and all the dial and selector mechanisms.

You can find manuals for your machine online (not free!).


Nelco Sewing Machine Manuals Instruction and Repair Manuals

Sears carries manuals for most of their machines (usually for free). The manual is invaluable for using your machine, including threading instructions.


Kenmore 158 1792 Sewing Machine Threading Diagram

Good day!

please try this simple tips:

Good day!

A sewing machine operator can often help themselves when their machine does not operate properly.
Here are some simple instructions, which if properly used can save time and mechanics service calls.
TROUBLE;UPPER THREAD KEEPS BREAKING;
This could be trouble;================Do this;
1.Top tension to tight================loosen tension 1 turn
2.Machine improperly threaded=========check threading
3.Thread twisted on guide post========"
4.Thread twisted out of tension======="
5.Take up spring bent or broken=======Check action of spring
6.Thread jumped off pull off finger===Check threading
7.Needle bent or burred===============new needle
8.Bad cone of thread==================try another cone
TROUBLE;LOWER THREAD KEEPS BREAKING;
1.Bobbin tensionspring to tight=======Loosen tension slightly
2.Bobbin threaded wrong===============check threading
3.Bobbin wound to tight or uneven=====try new bobbin
4.lint or thread on bobbin case=======clean inside case
5.Lint or thread inside hook==========clean inside hook
6.Bobbin case nicked bent or burred===check/change case
TROUBLE;MACHINE STARTED SKIPPING STITCHES;
1.Needle bent or burred===============change
2.Needle set in crooked===============Check
3.Thread jumped off take up spring====check threading
4.Thread jumped off pull off finger===check threading
TROUBLE STITCHES SHOWING LOOPS;
1.Forming loops on top of cloth=======Tighten bobbin tension
======================================or loosen top tension.
2.forming loops on bottom of cloth====Tighten top tension
3.Bobbin placed in case incorrectly===remove and replace
4.Bobbin thread slipped from under====check threading of
tension===============================bobbin case
5.Lint or thread in top tension=======clean between tension discs


Thank you and good luck.

Good day!

please try this simple tips:

Good day!

A sewing machine operator can often help themselves when their machine does not operate properly.
Here are some simple instructions, which if properly used can save time and mechanics service calls.
TROUBLE;UPPER THREAD KEEPS BREAKING;
This could be trouble;================Do this;
1.Top tension to tight================loosen tension 1 turn
2.Machine improperly threaded=========check threading
3.Thread twisted on guide post========"
4.Thread twisted out of tension======="
5.Take up spring bent or broken=======Check action of spring
6.Thread jumped off pull off finger===Check threading
7.Needle bent or burred===============new needle
8.Bad cone of thread==================try another cone
TROUBLE;LOWER THREAD KEEPS BREAKING;
1.Bobbin tensionspring to tight=======Loosen tension slightly
2.Bobbin threaded wrong===============check threading
3.Bobbin wound to tight or uneven=====try new bobbin
4.lint or thread on bobbin case=======clean inside case
5.Lint or thread inside hook==========clean inside hook
6.Bobbin case nicked bent or burred===check/change case
TROUBLE;MACHINE STARTED SKIPPING STITCHES;
1.Needle bent or burred===============change
2.Needle set in crooked===============Check
3.Thread jumped off take up spring====check threading
4.Thread jumped off pull off finger===check threading
TROUBLE STITCHES SHOWING LOOPS;
1.Forming loops on top of cloth=======Tighten bobbin tension
======================================or loosen top tension.
2.forming loops on bottom of cloth====Tighten top tension
3.Bobbin placed in case incorrectly===remove and replace
4.Bobbin thread slipped from under====check threading of
tension===============================bobbin case
5.Lint or thread in top tension=======clean between tension discs


Thank you and good luck.

Good day!

please try this simple tips:

Good day!

A sewing machine operator can often help themselves when their machine does not operate properly.
Here are some simple instructions, which if properly used can save time and mechanics service calls.
TROUBLE;UPPER THREAD KEEPS BREAKING;
This could be trouble;================Do this;
1.Top tension to tight================loosen tension 1 turn
2.Machine improperly threaded=========check threading
3.Thread twisted on guide post========"
4.Thread twisted out of tension======="
5.Take up spring bent or broken=======Check action of spring
6.Thread jumped off pull off finger===Check threading
7.Needle bent or burred===============new needle
8.Bad cone of thread==================try another cone
TROUBLE;LOWER THREAD KEEPS BREAKING;
1.Bobbin tensionspring to tight=======Loosen tension slightly
2.Bobbin threaded wrong===============check threading
3.Bobbin wound to tight or uneven=====try new bobbin
4.lint or thread on bobbin case=======clean inside case
5.Lint or thread inside hook==========clean inside hook
6.Bobbin case nicked bent or burred===check/change case
TROUBLE;MACHINE STARTED SKIPPING STITCHES;
1.Needle bent or burred===============change
2.Needle set in crooked===============Check
3.Thread jumped off take up spring====check threading
4.Thread jumped off pull off finger===check threading
TROUBLE STITCHES SHOWING LOOPS;
1.Forming loops on top of cloth=======Tighten bobbin tension
======================================or loosen top tension.
2.forming loops on bottom of cloth====Tighten top tension
3.Bobbin placed in case incorrectly===remove and replace
4.Bobbin thread slipped from under====check threading of
tension===============================bobbin case
5.Lint or thread in top tension=======clean between tension discs


Thank you and good luck.

Visit this website http://www.singerco.com/accessories/manuals.html
enter in your model number and download the manual for your machine, threading issues usually either bobbin not in correctly, thread not in tension or machine incorrectly threaded, so review the manual threading instructions and follow them to trouble shoot your machine.

There are so many thing you need to re-check.

First clean out the bobbin area to be sure there aren't any thread tangles still there.

Open the manual and start from the beginning with threading the machine with the presser foot lever UP - always.

Read the instructions and do not rely solely on the pictures as we all sometimes rush to do (I am just as guilty as the next person to do this).

Make sure the bobbin thread is feeding from the bobbin case in the correct direction.

Hold onto the end of the top thread (after needle has been threaded) and lower then raise the needle to catch and bring up the bobbin thread.

Place the fabric under the presser foot and as you hold onto the ends of the top and bobbin thread, hand walk the first stitch, then use the power pedal.

If you need a manual, you can download (free) from Singer - http://www.singerco.com/accessories/manuals.html

try sewusa loads of manuals and sewing diagrams. Since its a older machine.I would clean and oil it also.Lint can cause all kinds of issues.

Place the bobbin in the bobbin case making sure the thread feeds clockwise. Draw the thread through the slot on the case. Continue to draw under the tension spring and through the opening pulling out about 6" of thread. Hold the latch open, position the bobbin case into the suttle and release the latch. THe case should lock into place when the latch is relaeased.

With the top thread, hold out about 5" to the left. While holding on tot he top thread, turn the hand wheel toward you and you should see a loop at the feed dogs. grab the two thread and bring them behind the presser foot.

Bonnie

From the Simplicity Sew Precious Model SWSP2 manual:

Inserting a new bobbin:

1. Place wound bobbin into the bobbin case.
2. Pull about 6 inches of thread out from the bobbin.

NOTE: Be sure that the bobbin rotates COUNTER-CLOCKWISE when thread is pulled.

1. Pass the thread from the bobbin, under the bobbin case spring, and toward the back of the machine.
2. Slide bobbin cover back into position.

Upper threading:

1. Turn the handwheel toward you to raise the take-up lever to its highest position.
2. Lower the presser foot.
3. Place a spool of thread and spool cap on the spool pin.
4. Place the thread into the first thread guide at the top of the machine.
5. Bring the thread down the right slot of the threading path, then around the tension dial. Push the thread tension release lever and pull the thread up so the thread is secure in the thread tension dial.
6. Bring the thread up the left slot of the threading path and through the take-up lever from right to left.
7. Bring the thread back down the left slot of the threading path and into the needle eye from front to back. (Clip the thread end with sharp scissors fro easier needle threading.)

Raising the bobbin thread

1. Make sure the presser foot lever is raised.
2. Hold the end of the needle thread with your left hand. Turn the hand wheel toward you with your right hand until the needle goes down once and comes back up, stopping when the needle is at its highest position.
3. Gently pull up on the needle thread. The bobbin thread, looped around the needle thread, will be drawn up through the needle hole.
4. Push the thread tension release lever and pull about six inches of both the upper and lower threads toward the back of the machine, placing them under the presser foot.

You can obtain a copy in pdf format for free at:
http://www.simplicityhomecare.com/ftp/whitepapers/SWSP2-english.pdf