Sewing Machine Help..! Help And Advice On How To Repair Sewing Machine Problems

Do you have a sewing machine problem, or need help and advice our sewing machine knowledge base will help you repair and solve stitch looping problems
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Technical Sewing Machine Problem and Repair Technical Sewing Machine Problem and Repair - FAQ

  1. Where can I buy sewing machine parts

    We have just uploaded 10% of the most popular parts, feet, gears and accessories etc, to our online database. We carry a huge range of sewing accessories for all sewing machines in our warehouse and have a team of engineers that can help find that part that you may have thought was no longer available.

    We hear every day that customers are informed by some unscrupulous dealers that a sewing machine part is no longer made for their machine, so you would be better off buying a new machine...! utter rubbish!

    We have direct connection to manufacturer's parts databases for major brands so we can find the part you need. We can even arrange to have your sewing machine professionally repaired and returned to you. Also, we have access to other suppliers who manufacture quality replacement parts.

    Some after-market replacement parts are of far better quality than others! However, you need not worry about such things when you shop with us.

    Most parts can be found in our spares database section on this website.

  2. How to fit the top shaft bevel gear

    This information relates to most Singer 300 and 400 series sewing machines and explains how to remove, refit and retime the machine after fitting the new top shaft bevel gear.

    Lay the machine on its back and remove the bottom cover. Slacken the belt tensioner.

    Stand the machine on its base, take off the top cover and loosen the screws on the top shaft vertical gear.
    A few options are available to allow access to the vertical gears adjustment screws...
    1. To get to that screw you can access it by inserting a long screwdriver into the gap above the stitch length lever.
    2. If the stitch length is a dial, remove - pull off the dial, you should be able to reach the gear screws without removing the stitch length adjuster unit
    3. Remove the front plastic panel. Behind that there will be an inspection hole with a smaller metal cover to remove, held with 2 black screws

    The top shaft will now drop leaving the gear easy to remove. Its a bit of a fiddle to get the loose gear out of the machine.

    Replace with the new gear and make sure the single screw tightens onto the flat on the shaft. Also make sure there is no up and down play in the shaft.

    Re-tighten the belt tensioner.

    To time the machine, remove needle plate and bobbin case, slacken the two grub screws on the underside pulley of the stitching mechanism. Once slack, turn the needle bar to its highest position. Now turn the stitching mechanism by hand so the point on the inner circumference is at 12.00 o'clock.

    Insert a new needle and turn the needle to its lowest point in the normal direction of travel and continue until it rises again, approximately 2mm.

    At that point, the point on the stitching mechanism should be at the needle to catch the thread. Re-tighten the pulley screws and reassemble. (further information is available on re-timing a sewing machine in the knowledgeable)

  3. How do I wire a new foot control to my lead

    THIS ONLY APPLIES TO A TWO WIRE LEAD AND TO FITTING OF THE DIY TYPE FOOT CONTROL.

    Unplug the power supply.

    1. Cut the lead as close to the old foot control as possible, slide the lead protector over and up the lead.

    2. Prepare the ends of the wires on the lead and attach the spade connectors to the bared wire ends, and push the heat insulation tubes over the wires.

    3. Take the back off the new foot control (3 screws)

    4. Push the spade connectors onto the two spades inside the foot control.

    Location where spade connectors should go

    5. Lay the lead (use protector) out the slot in the foot control body and using the clamp, screw it down to hold the lead in place.

    6. Replace the bottom cover.


    (the instructions above are for qualified electricians reference and is only a guide not complete.)

  4. Sewing machine runs on its own as soon as it is plugged in

    There is a very high chance that the foot speed controller has burnt out and has shorted across its connections - There is only one option when this happens, replace it with a new foot control.

    It is important you replace the foot control with one that is compatible with your machine's make and model.

    Our expert staff can guide you to the correct foot control for your sewing machine or you can simply use our parts database and search using the brand, make, model search function on most pages.

  5. How to retime a sewing machine resetting hook to needle timing

    If your sewing machine is missing stitches, or the needle seems to be catching on the bobbin case or hook. Follow these instruction to reset the sewing machine needle timing.

    But, first replace the needle with a size 90 brand new sewing machine needle. This is extremely important, the needle must be unused, and the correct one!

    Remove all the thread and remove the bobbin case and needle plate. You may need to remove the feed dog if required for a better view.

    This information will set the needle to the hook timing correctly.

    First steps:
    Set the sewing machine to straight stitch with center needle position.

    Turn hand wheel anticlockwise the needle will move up and down. Watch as the needle moves up and down just like the animated image below, see how the needle should go to its lowest point then up slightly, just as the hook point rotates past the needle. That hook should catch the thread from the needle eye.

    Prepare the needle position:
    Keep turning the hand wheel by hand, and stop only when the needle point moves to its lowest point, then moves back up - Stop turning when the needle moves exactly 2.2 mm higher than its lowest position.

    Set the hook to the needle:
    Loosen the hook gear or belt pulleys (usually held in place by 2 or 3 allen key screws)

    Turn the hook by hand in the same direction as the machine would run (the top shaft and needle must not move), watch the hook movement as the hook point rotates behind needle point - when the hook point is directly behind the needle tighten all gears etc.

    The optimum position you must achieve is the needle should be inline with the hook point. Also the needle eye must be just below the hook point.

    After timing the needle to hook, the next task that may need to be checked or adjusted would be the feed timing, which is the feed dog moment to needle movement. This is covered in another FAQ.

    How to reset hook timing on a sewing machine

  6. Machine wont pick thread up from bobbin every now and again

    Replace needle.
    Check threading.
    Check for burr on hook or on the bobbin case - Replace if there is any sign of damage or pitting.
    If the above do not resolve the issue, the sewing machine timing may be out of alignment and will need to be reset.

  7. Motor spins but needle will not move

    On the older black cast Singer machines sometimes the motor can spin but there is no drive to move the needle bar. The most common cause of this problem is usually the washer located directly under the de-clutching hand screw which secures the machines handwheel. The hand screw can be removed by simply removing the single locking screw then unscrewed. The washer with two raised prongs will then be visible. This maybe worn and need replacing although it can be moved round one notch and relocated, also it's worth checking that the washer is fitted the correct way round with the raised prongs facing towards the machines top shaft and not away.

    While the washer is removed it is good practise to remove the handwheel add a little oil to the top shaft and inner handwheel for smooth operation.

     

     

  8. Machine wont pick thread up from bobbin at all

    Look for a damaged gear under the machine, remove the bottom cover and look for a plastic gear that may have split or cracked. You may see a broken gear tooth in the base of the machine. Look at the gears on the shaft while rotating the machine mechanism by turning the hand wheel - These sewing machine gears are very reasonably priced and can be replaced as a DIY job.

    After these DIY project/repairs you will need to re-time the sewing machine. You can find details on how to retime a sewing machine in this section.
    Replace gear - Re-time machine


    The hook timing out, needle will not pick the thread up - Re-time machine.
    Timing belt jumped a tooth - Re-time machine

  9. Hook is not rotating

    Similar to the FAQ "Machine wont pick thread up from bobbin at all" however, if the hook is not rotating, we know the problem will be a split or cracked gear maybe under the bobbin area or bottom half of the machine, the drive from the machines top shaft to the vertical drive shaft - Replace gear as required and retime machine.

    Also check the top horizontal shaft for a broken gear at the top of the vertical shaft - Replace gear as required and retime machine.

    These sewing machine gears are very reasonably priced and can be replaced as a DIY job.

  10. How to reset the feed timing

    Replace parts as required first and reassemble. Always reset hook to needle timing first.

    Select straight stitch and turn the stitch length to a long stitch setting.

    Replace old needle with a brand new size 90. Use a standard sewing machine needle.


    Turn hand wheel anticlockwise and stop when the needle point is 0.5mm above needle plate.

    Turn the pre-loosened feed gears on the horizontal lower shaft by hand, watch feed movement as feed moves up above needle plate. A
    s if to feed the fabric it starts to move toward the rear and under the needle plate. (during this process you may need to have one hand on the hand wheel, stopping the needle from moving from its 0.5mm position)

    To adjust the feed. As soon as the feed dog teeth move below the needle plate tighten all gears.

    Check by turning the hand wheel anticlockwise. Watch as the feed dog moves and just as the needle point lowers through the needle plate, the feed dog also disappears below the needle plate.

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