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Anonymous users2024-02-08Sewing machine jumper, in fact, is a wide coverage of the problem, sewing machine has many kinds: flat machine, bartack, flat eye machine, round eye machine, three cars, bead edge machine, etc., here briefly talk about the most used flat machine jumper problem. Take off the needle first, check whether it is bent, and replace it with a new needle for test run if it is bent.
If you still jump, then check the presser foot and the needle board, there is not a tight cloth, the needle board is uneven, replace or adjust, if there is no abnormality, then check the height of the needle bar, the dead center scale line under the needle bar to the copper sleeve, the thick cloth needle bar can be put down about 1mm, and then adjust the hook time of the shuttle bed, the needle bar rises, when the tip of the shuttle bed is hooked in the middle line of the needle, the tip of the shuttle bed is higher than the pinhole or so, if the fault has not been eliminated, check whether the tip of the shuttle bed is sharp and smooth, otherwise replace. Through the above adjustments, 90% of the faults of the flat machine jumper will be solved, and the remaining 10% probability may be related to the machine's cloth feeding mechanism, sewing thread, etc.
The problem of jumpers is to understand how the sewing machine forms the stitch distance?
It uses the principle of crankshaft to rotate when the needle rod moves up and down regularly, the needle eye lead hugs the bobbin shell every time the thread is fed and hooked by the hook to form a fixed angle, and the stitch is interspersed with a needle and a thread to the sewing material, and the cloth feeding teeth push the sewing material forward rhythmically under the action of the linkage rod to complete the sewing work.
The most common mistake in the work of the sewing machine is the irregular stitch thread, which can also be called the jumper. This should be found from the interlocking clamps, the length of the old and new needles, the bending, the matching of the needle numbers, the loosening of the fixation of the needle, and the distance of the needle shuttle.
Turn over the upper plate, rotate the axle to see if each needle can be accurately hooked, and adjust the verticality of the needle to make the needle shuttle gap appropriate.
If there is an asymmetry between the upper and lower lines, you can adjust the upper clamping screw and the small screw of the bobbin. Make the upper and lower tension even. The elastic elasticity of the presser foot of the feeding teeth sometimes has an effect. In short, a master who has no experience at all can't adjust it randomly, and if there is an asymmetrical adjustment, it can't be used normally.
There is an old-fashioned pedal machine at home, as a backup, and these problems often occur, and I go to find the fault in this way.
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Anonymous users2024-02-072) Hangzhou Oil Bureau Bridge Chen's re-engraved version. This book is the same as the original engraved version, and the title page is inscribed: "Qianlong Yiji year re-engraved, Qingke Pavilion Tibetan Edition."
At the end of the preface to the more than the first volume of the volume, there is a line of small print: "Hangzhou Oil Bureau Bridge Chen's Journal", and after the preface of Tang Mengcheng and before the inscription of the Zhujia, there is "The Chronicle of Carving and Talking about Zhai Zhiyi" by Bao Tingbo, a scholar who has been idle, and this article records in detail the process of the publication of this book. (3) Qianlong Yimao re-engraved version.
The line of this book, the sidebar and the first engraved book are also exactly the same, and there is also a mark on the title page of "Qingketing Tibetan Plate", but there is no Bao's article "Engraved Chat Zhaizhiyi Chronicle", nor is there the words "Hangzhou Oil Bureau Bridge Chen's Journal", but in the fifth volume.
The nine and eleven pages are engraved with four small characters under the heart of the edition: "Yi Mao Reprint".
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Anonymous users2024-02-06Hello, the electric sewing machine picks up the blue thread rod that falls off may be caused by long use time or improper use. If you have some experience in repairing, you can try to repair it yourself. Here's how:
1.First of all, take the sewing machine apart and find the location of the take-up rod. 2.
Check that the set screws of the take-up rod are loose or fall off, and if so, they can be retightened or replaced. 3.If the take-up rod itself is damaged or deformed, it needs to be replaced with a new one.
4.When replacing the take-up rod, it is necessary to pay attention to whether the size and model of the take-up rod are the same as the original, so as not to affect the normal use of the sewing machine. If you have no repair experience or are unsure how to do it, it is recommended that you seek professional help.
In addition, in order to protect the life and performance of the sewing machine, it is necessary to pay attention to the correct use and maintenance during daily use to avoid similar problems.
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Anonymous users2024-02-05Summary. Hello dear and happy to answer your <>
<> electric sewing machine take-up rod fell off the maintenance method. 1. You first turn off the electric sewing machine, unplug it, and then use a small screwdriver to loosen the fixing screws of the machine head, and remove the take-up rod and other parts that need to be repaired. 2. Then, you can check whether the fixed parts of the take-up rod are loose or damaged, and determine what kind of repair operation is required.
If it's just loose, the pole can simply be re-secured, and if it's already damaged, a new part needs to be replaced. 3. Finally, you should pay attention to the installation sequence and details of the machine head, make sure all the parts are installed correctly and stable, then reconnect the plug and start the electric sewing machine to check if it can work properly. I hope this information is helpful to you and I wish you a successful repair!
How to repair the electric sewing machine thread pick-up rod off.
Hello dear and happy to answer your <>
<> Electric knows how to repair the thread pick up rod of the sewing machine. 1. You first turn off the electric sewing machine, unplug it, and then use a small screwdriver to loosen the fixing screws of the machine head, and remove the take-up rod and other parts that need to be repaired. 2. You can then check whether the fixed parts of the take-up rod are loose or damaged, and be ready to determine what kind of repair operation is required.
If it is only loose, the rod can be simply re-fastened, and if it has been damaged, the roller will need to be replaced with a new part. 3. Finally, you should pay attention to the installation sequence and details of the machine head, make sure all the parts are installed correctly and stable, then reconnect the plug and start the electric sewing machine to check if it can work properly. I hope this information is helpful to you and I wish you a successful repair!
Dear, here's a <> for you
<> the problem that the thread pick up rod of the electric sewing machine has dropped, you can follow the steps below to repair it:1First, confirm the cause of the fall of the spine rod.
It may be due to damage to the take-up bar itself, or it may be caused by an insecure installation. 2.If the take-up bar itself is damaged, you may consider purchasing a new one-take-up bar to replace it.
3.If it is caused by an insecure installation, you can remove the entire wire wheel and check whether the mounting holes of the take-up rod are worn or loose. 4.
If there is wear or looseness, you can use materials such as glue or tape to repair or reinforce. 5.After confirming the condition of the thread take-up rod, install the new thread take-up rod and test whether the sewing machine is normal.
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Anonymous users2024-02-04Summary. Hello dear <>
The extension for you is as follows:Sewing machine repair:1
If the stringing method is incorrect, please rethread it according to the "Stringing Chart". 2.The straight pin is not installed correctly.
Check the height and orientation of the needle so that the needle moves slightly down in front of the needle plate hole. 3. If the tip of the needle is straight or bent, replace it with a new needle. 4.
The tip of the looper is dull and can be sanded with a stone or fine sandpaper, or it can be replaced with a new looper. 5.If the suture tension is too large or too small, adjust the suture tension appropriately.
6.The looper can't fit the coil of the straight needle on the right, and the right needle of the Youyou resource network cable is decorated underneath. The coil of the straight needle is too small, and the amount of jumper should be increased appropriately.
7.The loop of the left straight needle cannot be hooked by the looper. The left stitch of the lower trim line and the loop of the straight needle are too large, and the amount of jumper should be appropriately reduced.
How to repair the electric sewing machine thread pick-up rod off.
Hello dear <>
I am glad to answer the maintenance steps for you to remove the thread pick-up rod of the electric sewing machine: first loosen the screw of the clamp, this screw is on the side of the clamp, on the case, loosen the clamp can be taken down, so that the small screw on the clamp can be loosened, and the part outside the clamp world thread can be taken out and sold, so that it can be replaced with a new one.
Hello dear <>
The extension for you is as follows:Sewing machine repair:1
If the stringing method is incorrect, please rethread it according to the "Stringing Chart". 2.The straight pin is not installed correctly.
Check the height and orientation of the needle so that the needle moves slightly down in front of the needle plate hole. 3. The tip of the needle is straight or curved, and the needle is replaced with a new one. 4.
The tip of the looper is dull and can be sanded with a stone or fine sandpaper, or it can be replaced with a new looper. 5.If the suture tension is too large or too small, adjust the suture tension appropriately.
6.The looper can't fit the coil of the straight needle on the right, and the bottom is decorated with the right leaky jujube needle of the Youyou resource network cable. The coil of the straight needle is too small, and the amount of jumper should be increased appropriately.
7.The loop of the left straight needle cannot be hooked by the looper. The left stitch of the lower trim line is looped and the straight needle is looped too large, and the amount of jumper should be appropriately infiltrated to reduce the amount of jumper.
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