Question about Sewing Machines

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The timing keeps screwing up. i've replaced the horizontal and vertical gears that go to the bobbin. is the only left step is to replace the belt; i really don't want to. the belt was placed so that the whole bar has to be removed.

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If you have replaced the gears then all you need to do is retime the machine but it may take several attempts to get it right, I will try and load instructions on here but if I can't email me kendourof@yahoo.com

Posted on Oct 19, 2013

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  • Sewing Machines Expert
  • 225 Answers

I would really need to know the make and model of the sewing machine to help you.

Posted on Oct 16, 2013

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Posted on Jan 02, 2017

RickE1
  • 202 Answers

SOURCE: bobbin casing not in sync with needle.

When you have that hook drive gear back out turn the wheel until the needlebar is in its highest position. The bar with the teeth that the gear fits onto should be all the way to the right. Now slide the hook driver gear back on. You can lay the hook back in and slowly turn the wheel. Watch that the point of the hook on its upwards stroke is coming slightly above the eye of the needle. When it does this you will be in the correct position to put the screw back on.
Hope this helps. It may take a couple of tries but you will figure it out.

Posted on Nov 05, 2008

  • 9 Answers

SOURCE: Singer cg-590 floating bobbin keeps jumping out of it's holder.

I'm not completely familiar with the model, but even a floating bobbin holder as you described should have some sort of a hold down. There may see a small swinging arm on the bottom right side of the bobbin area that needs to be located over the bobbin case to hold it in place. Let me know if this doesn't work.

Posted on Feb 21, 2009

  • 5 Answers

SOURCE: replace a motor belt for sewing machine

The top tension is dependent not just on the tension dial, but also on the little disks that you go through to thread the machine. If it is not threaded correctly, you will get bunching underneath. Sometimes I just have to rethread the machine-- when you get to the disks- hold the thread taut and push it through the disks before going up to the arm part. Here is a threading picture I found- but it doesn't point out the disks too much. Once the machine is stitching nicely, then the tension dial can be used to flatten out the stitches.
http://www.sewusa.com/Threading_Diagrams/Threading_Pages/Singer_Sewing_Machine_Threading/singer_900_futura_threading.htm

Posted on Mar 14, 2009

  • 111 Answers

SOURCE: My bobbin keeps bunching up.

Put the tension back up to about 5. Rethread the machine entirely, and make sure you have the pressure foot in the up position when you rethread. If your getting bunching on the bottom, it's probably your top thread that's bunching up. After you rethread, put a small piece of fabric under the pressure foot, lower the pressure foot, and turn the handwheel in the forward direction and watch the thread as it comes around the bobbin case. If it goes around smoothly, try it with the foot control. If it hangs up as it goes around the bobbin case, you might have a burr on the black plastic bobbin case. Take it out, check for any burrs, sand them down, and try again.

Posted on May 07, 2011

  • 1 Answer

SOURCE: Replacing broken gears on Singer Touch & Sew Model 648

Remove the plastic faceplate from the front of the machine. There is a Singer logo button that you will have to pop out to release it, and then the lever nobs to get around to get it off. You can then access the allen screw on the top gear.
Remove all the set screws on both the top and bottom gears on the vertical shaft. Put them in a safe place.
The vertical shaft sits directly below the horizontal shaft, but there is some space between them and wiggle room to do the following. If the shaft does not slip down easily, use a small diameter rod or screwdriver to gently tap the vertical shaft downward until the top gear slips off the end. Remove the gear.

Posted on Dec 17, 2011

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How do i fix the timing on my pe770


Timing this machine is not so easy but if U want to try... Remove the left bottom panel (one central screw), and look under. U will see by the rear the vertical gear making the hook turn. At the bottom of this gear, U will see a small allen. Slack this allen screw, LEAVE A TENSION ON THE ALLEN SCREW: eitherway the hook will not follow the gear when U bring back the assembly to retight the allen screw.
U can now turn the hook on the gear, allowing to change the timming.

Send the needle completely down and when it come up, the point of the hook has to arrive at 2.5mm. on the top of the hole on the needle.

A TRICK : It might be easier to slighly change the position of the needle in the needle bar. Check the timing and try to correct it but lowering a little bit the needle before tightening the scew, or cut a little bit top part of the needle with a grinder.

May 09, 2012 | Brother PE770 Computerized Sewing Machine

1 Answer

How can I fix a drop-in bobbin


  1. Cleaning and oiling the machine
    • 1 Unfasten the top, bottom, side and handwheel covers, using a screwdriver. Set the covers aside.
    • 2 Remove the plate that covers the thread bobbin. If it is screwed in place, use a screwdriver. If it is held by a clip or magnet, use a small flathead screwdriver to pry up the plate.
    • 3 Thoroughly clean inside all the openings, using a vacuum with crevice attachment. Remove any stubborn lint, and use tweezers to take out any thread that is wound around the parts.
    • 4 Clean the teeth on the gears, using the tip of a round toothpick to loosen the grime. Vacuum to remove it.
    • 5 Lubricate all the moving parts. Use white lithium grease on the gears, and sewing machine oil on the other parts.
    • 6 Reassemble the machine and plug it in.
    Tightening or replacing the drive belt
    • 1 Remove the top cover, bottom cover and handwheel cover, using a screwdriver to take out the screws.
    • 2 Inspect the drive belt. If it is slack, use your screwdriver to loosen the screws that hold the motor in place, then follow step 4, below, to increase the belt's tension. If the belt is cracked or broken, get a replacement from your sewing machine supplier.
    • 3 Install the new belt. Loosen the motor-mounting screws, and shift the motor toward the handwheel so you can slip the belt over the parts.
    • 4 Shift the motor away from the handwheel to increase the belt's tension, then tighten the motor-mounting screws and check the tension. The belt should flex no more than 1/2 inch (12 mm). If it is too loose, increase the tension.
    • 5 Reinstall the covers and plug in the machine.

Oct 20, 2011 | Kenmore Drop-In Bobbin 16231 Mechanical...

1 Answer

How to oil a singer 457


Every few weeks you should put a drop of oil in the opening of the bobbin case (visible when the bobbin is out) after cleaning that area. (This is to the center front of the bobbin case.)

Every few months, you need to put oil (just a drop) on several points inside the face plate. One spot is high (near the thread take up lever when in its highest position). Then oil the upper shaft of the needle and presser foot mechanism and at the top of the section with the screw midway down the shaft (the farther back). Add a drop of oil at the bottom of the shafts (two spots), Additionally put a drop of oil farther right near the thread path.

Once a year, remove the top cover and place a drop of oil at both holes on the top. (One is near but to the right of the main spool pin; the other is near the thread guide at the take up lever.) Put a drop of oil at the hole at the center right of the deck of the sewing machine (right next to the motor and below the stitch width selector). With the top cover off, there are a number of spots that need oil. One is near the center of the machine at the take up lever (top of shaft). The next is at the center of the stitch width cam. Place another drop of oil at the top of the lever that rests against this cam. Place a drop of oil at the bottom of the lower gear (the one that turns in the horizontal plane). Also oil three points to the right of the vertical gear. (These are the two sections on the shaft to the right of the gear and the point in that same line just to the right of the screw to the back of the area.) Remove the bottom of the sewing machine and oil seven points (three to the left and 4 on the right). Do this carefully - you do not want to get oil on the motor or the belt. These points are on the left: on the shafts near screws at the top and bottom and one spot near the center just in front of the belt. For the points near the screws, the one further up is closer to the left edge of the nachine. On the right side: two points above the belt. One is right next to the belt and one is on the shaft below a screw (this shaft continues to the lowest oiling point on the left side).

The manual for the Singer 457 is available from Singer as a PDF: http://www.singerco.com/uploads/download/5d6ce627c00cb91c477d4703f1b704aab08a72c8.pdf . See the diagrams starting on page 53 (page 55 of the pdf) for the exact oiling points. I tried to explain these spots but I usually grab the manual for the pictures for my machine for the yearly oiling. You can buy a copy of the manual from Singer for $15 here: http://www.singerco.com/accessories/instruction-manuals/ . Enter the model number without any extra letters at the end of the model number. Then click Search.

I hope this helps.

Cindy Wells

Oct 06, 2011 | Singer Quantum XL-5000 Computerized Sewing...

1 Answer

My Husqvarna diamond top thread keeps breaking while doing loop embroidery. It sews a couple of stitches and then you can hear when the thread breaks. Ive tried changing the needle and bobbin, and cleaning...


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.

Jul 11, 2011 | Husqvarna Designer I

1 Answer

Top thread is tight and bottom thread is too loose. How do you tighten the bottom thread?


You havent said what make and model this relates to.

But generally, you adjust the top thread and leave the bottom thread tension alone (unless it has been altered in error).

If your machine has a removeable bobbin case that goes into a front loading vertical rotary hook then you adjust a little screw on the bobbin case with a mini screwdriver. See this website for lots of great sewing machine tips and general help. http://sewing.about.com/od/sewingmachineparts/p/bobbincase.htm This page shows a removable bobbin case and explains which way the bobbin goes into it. If the bobbin is in the wrong way or not under tension this could be causing your stitching issues too.

Only 1/4 turn increments each time. To check tension on the bobbin case, put in the bobbin, pull the thread into tension spring, then hold the thread tail and dangle the bobbin case and bobbin (dangle test). It should hang in the air and the bobbin not release any thread. So turn screw up until you get it to this point but no further. With a gentle pull though, you want the thread to come out of it. Right to tighten, left to loosen usually.

If you search some of my other solutions I've covered the dangle test lots of times.

Jun 15, 2011 | Sewing Machines

1 Answer

After replacing the bobbin the sewing hook/bobbin doesnt turn anymore. It will spin if you turn the wheel backwards but it wont do anything when turned forward.


Did the machine get jammed? Maybe the timing belt clutch came disconnected. Look on the bottom of the machine while turning the hand wheel and see if the lower horizontal shaft is turning at the left end. If not, you have to regage the clutch. Let me know if this the case.

Apr 25, 2011 | Consew 255RB-3 Mechanical Sewing Machine

1 Answer

I have a janome 1 step sewing machine and it keeps jaming. I have been sewing a thicker fabric recently with no problems, but now it jams after about 3 revolutions. I think something is wrong with the...


Do you have a manual for this machine? You need to follow the cleaning instructions and remove the needle plate, and clean under the bobbin holder. I've attached an image from my Janoma 6500 manual, I think yours has a top loading bobbin inside a magnetic bobbin case so this info should work for your model. There may be a little triangular shaped tool in your kit but any short flat blade screwdriver will remove the two setscrews. (always good idea to unscrew off the pressure foot and take out the needle first so you've got room to work).

PLEASE NOTE: If you've never pulled this bobbin area apart before, good idea to snap pics with your digital camera as you go to refer to and for reference next time!!

This uncovers the bobbin holder area, you'll see there is a black plastic holder which your bobbin goes into which has the tension device on the side and this then sits inside an outer metal casing which is the hook race. The bobbin holder is held there by a magnet underneath it and sits up against another little stopper. Look at the bobbin case and the stopper, there should be two red marks that must line up. Are they???

If the answer is no, then you need to remove the bobbin case, clean out any lint and fluff using your little brush that came with the machine, and you may also have pieces of thread caught in here too. Once clean, place the bobbin case back into the outer surround, under the other piece and lining up the two red marks. This is where photos are so helpful.

Now replace the needle plate and screws, pressure foot, pop in a new needle and thread everything up again.

If the thread continues to catch then you may have managed to damage the bobbin case; as they are plastic if they move out of position the needle can catch and burr or pierce them. If this has happened you could try to smooth out the burring with an emery board or similar. Or you may need to replace it if damaged badly. I've changed mine twice so far because I've pierced it with the needle several times.
I hope that this helps you out, good luck with your machine.tally_girl_3.jpg

Apr 13, 2011 | Sewing Machines

1 Answer

Bobbin not turning, possible motor/gear issue?


You have a broken vertical shaft gear. It's very easy to replace if you are mechanically inclined. The gear can be purchased for between $8-14 from a sewing repair store and I can walk you through the process.

Jul 19, 2009 | Sewing Machines

2 Answers

Replacing broken gears on Singer Touch & Sew Model 648


Remove the plastic faceplate from the front of the machine. There is a Singer logo button that you will have to pop out to release it, and then the lever nobs to get around to get it off. You can then access the allen screw on the top gear.
Remove all the set screws on both the top and bottom gears on the vertical shaft. Put them in a safe place.
The vertical shaft sits directly below the horizontal shaft, but there is some space between them and wiggle room to do the following. If the shaft does not slip down easily, use a small diameter rod or screwdriver to gently tap the vertical shaft downward until the top gear slips off the end. Remove the gear.

Mar 09, 2009 | Singer Sewing Machines

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