Incorrect orientation of the flat bevel of the needle when installed in the needle holder of a Janome sewing machine is the most common cause of skipped stitches and thread breakage. Even a minimal rotation of the needle by 90 degrees relative to the vertical axis leads to shuttle device does not have time to catch the thread loop, which makes sewing impossible. Owners often mistakenly believe that the problem lies in the tension of the thread or the adjustment of the regulators, ignoring the basic mechanics of the knot needle bar.
For correct operation of the mechanism, it is necessary to strictly observe the geometry of the installation, since needles for household machines have a specific shank shape. Models Janome, like most modern manufacturers, one side of the cone has a characteristic cut, which must be directed in a specific direction to synchronize with by shuttle. Ignoring this rule not only degrades the quality of the seam, but also creates a risk of damage needle plate or himself shuttle shaft when metal hits metal.
The process of replacing consumables requires preliminary preparation of the workplace and disconnecting the equipment from the power supply to avoid accidental starting of the mechanism. It is important to use only quality needles of the appropriate size, as a dull point or bent shaft can cause serious damage to machine parts. In this guide, we will analyze the algorithm of actions that guarantees correct fixation and stable stitch quality.
Preparation of the workplace and safety when replacing the needleBefore starting any manipulations with the machine mechanism, you must completely disconnect the device from electrical networks. This is a critical safety rule that prevents you from accidentally pressing the gas pedal while working with your fingers close needle bar. Even if the machine is turned off with a button, physically unplugging the cord from the outlet is the only guaranteed way to avoid injury or damage to the electronics.
Provide sufficient illumination of the work area, since the opening needle holder and the mounting screw are small and require good visibility. It is recommended to use a table lamp or the built-in LED lighting of the machine if it allows you to adjust the angle of inclination. Also prepare a special screwdriver key, which usually comes with the machine, or use a small flathead screwdriver.
⚠️ Warning: Never try to insert or remove a needle while the machine is on or with the pedal under your foot. Accidental pressing may cause serious injury to your finger or the needle may break and fly into pieces.
To make the process easier, you should prepare in advance a new needle of the required number and type, as well as tweezers if your hands are not very steady. The tweezers will help hold the thin needle securely, preventing it from falling into the machine mechanism, which would require disassembling the housing to remove it. Hand cleanliness also plays a role, as greasy stains can cause corrosion on the steel surface. needles.
Determining the needle type and bevel orientationSewing needles for household machines including brands Janome, Brother and AstraLux, have a standardized marking system and cone shape. The main difference is the presence of a flat cut (flat) on the shank, which serves as a guide for correct installation. In horizontal and vertical shuttle machines, typical for Janome, the flat cut of the cone should be directed strictly to the right when looking at the car from the front.
There are also needles with a round cone, but these are used in specific industrial machines or very old models, so for home Janome The "flat right" rule is universal. If you use needles with special coatings or point shapes, such as for denim or knitwear, the rule of flat cut orientation remains the same. Incorrect orientation causes the long notch in the needle shaft to be on the wrong side and the thread cannot form a loop.
Needle marking
How to read packaging
The package of needles usually shows two numbers, for example, 80/12 or 90/14. The first number is the European standard (metric), indicating the diameter of the rod in hundredths of a millimeter. The second number is the American standard. The higher the number, the thicker the needle. For light fabrics (silk, chiffon) use 60-70, for medium (cotton, linen) - 80-90, for heavy (jeans, coats) - 100-110.
Different types of fabrics require the use of specialized needles that have a special sharpening of the tip. For example, for knitwear, a needle with a rounded tip is used (Jersey or Stretch), which spreads the fibers apart rather than piercing them, preventing puffs. For denim, the point is sharper and stronger to penetrate the dense structure without deformation.
Step-by-step instructions: how to insert a needle into JanomeThe installation process begins with lifting needle bar to the highest position. To do this, you can turn the machine's flywheel towards you or use the needle lift button on the electronic control. When the needle is at its highest point, the clamping screw is exposed and there is a risk of the needle getting stuck in shuttle comes down to zero.
- The machine is disconnected from the power supply
- The needle bar is raised to the top position
- Selected needle of the correct size and type
- A wrench has been prepared to loosen the screw
- The workplace is well lit
Using a wrench, loosen the clamp screw needle holder, turning it counterclockwise. Do not unscrew the screw completely, so as not to lose it; it is enough to create a gap into which the cone of the new needle will freely fit. Take a new needle and insert it into the hole until it stops, making sure that the flat cut of the cone is directed to the right (towards the right end of the machine).
Once the needle is inserted all the way, tighten the screw clockwise tightly. The force should be sufficient to prevent the needle from turning or falling down during operation, but do not apply excessive force so as not to strip the thread. Check the secure fit by slightly pulling the needle down; if it does not move, the installation is completed successfully.
Useful advice
When tightening the screw, hold the needle with the fingers of your other hand so that it does not move to the side under the pressure of the screw. Make sure the needle is straight and not tilted forward or backward.
Correspondence table for needles and fabrics for JanomeThe correct choice of needle directly affects the quality of the seam and the safety of the fabric. Using a needle that is too thick on thin fabric will cause large holes and possible thread breakage, and a thin needle on thick fabric will bend or break. Below is a table to help you choose the optimal needle number for different materials.
| Fabric type | Examples of materials | Recommended needle number | Point type |
|---|---|---|---|
| Thin fabrics | Silk, chiffon, organza, cambric | 60-70 (9-11) | Sharp |
| Medium fabrics | Cotton, linen, viscose, chintz | 80-90 (12-14) | Sharp |
| Thick fabrics | Jeans, gabardine, drape, leather | 100-110 (16-18) | Enhanced spicy (Jeans) |
| Knitwear | Kulirka, footer, jersey, stretch | 75-90 (11-14) | Rounded (Ball Point) |
When working with specialty materials such as leather or vinyl, it is recommended to use needles marked Leather, which have a triangular tip for clean piercing without breaking the structure of the material. For stretchy fabrics with a high lycra or spandex content, needles are best Stretch, preventing stitches from skipping in difficult areas.
It is critical to change the needle after each completed project or every 8-10 hours of clean sewing. Even if the needle is visually intact, microscopic burrs on the tip can already damage the fabric.Diagnosing problems after needle installationIf after replacing the needle the machine begins to malfunction, it is necessary to carry out initial diagnostics. Most often, problems are associated with incorrect installation, which was mentioned earlier, or the use of low-quality consumables. Let's look at the main symptoms and their probable causes.
Skipped stitches are the most common defect and indicate that the loop of thread is not formed in time. This can happen if the flat bevel of the needle is facing the wrong way, or if the needle is not installed all the way up. It may also be due to the use of a blunt or bent needle that does not create enough of a hole in the fabric.
An abnormal noise, such as a knocking or clanging sound when the needle is lowered, indicates that the needle is hitting needle plate or shuttle.
⚠️ Attention: Stop sewing immediately if metallic noise occurs. Continuing operation may cause the shuttle shaft to break or the needle bar to become deformed.
In this case, you need to check whether the needle is bent and whether it is inserted correctly into the holder.
Upper thread breakage is often caused by roughness on the needle or improper threading. If the thread breaks sharply, with a characteristic sound, inspect the eye of the needle under magnification - there should be no burrs there. Also check that the thread passes through all the guides on its way to the needle.
Common errors and ways to resolve themOne common mistake is trying to use round-cone needles on machines that require a flat cut, or vice versa. Although some universal needles may be suitable, for stable operation Janome It is better to stick to the standard with a flat cut on the right. Ignoring this requirement leads to unstable thread tension.
Another mistake is not tightening the needle clamp screw sufficiently. At high sewing speeds, a loose needle may begin to drop down, causing it to hit the hook and cause serious damage. Always check the tightness before starting work, especially after changing thread or fabric.
Main conclusion
The quality of the seam depends 90% on the condition and correct installation of the needle. Regularly replacing the needle and checking its orientation is the easiest way to avoid 95% of all sewing machine problems.
Some users try to straighten bent needles and reuse them. This is strictly forbidden. Even if the needle visually appears level, its internal structure is disturbed and the balance is off. Such a needle will hit the shuttle and ruin the fabric.
Needle holder care and preventionRegular cleaning of the needle holder area from dust and lint helps maintain the mechanism in working condition. Lint that gets inside the holder can prevent the needle from fitting tightly, causing it to become misaligned. Blow the area with compressed air or gently brush with a soft brush each time you change the needle.
Needle bar lubrication is required extremely rarely, as in modern machines Janome self-lubricating materials or dry bearings are used. However, if you notice that the needle bar moves tightly, contact a service center for professional lubrication; do not use household oils, which can thicken and ruin the fabric.
How often to change the needle?-->
Professional seamstresses change the needle at the beginning of each new project. If you sew rarely, change the needle after every 3-4 projects. When sewing leather or jeans, change the needle immediately after finishing work with these materials, since they dull the point the fastest.
spoiler
What to do if the needle breaks and a piece falls inside the machine?
Don't shake the car. Carefully remove the needle plate (usually held on by two screws) to gain access to the hook. Remove the fragment with tweezers. If a piece of debris fell deeper into the shuttle shaft mechanism, it is better to contact service so as not to disturb the lubrication and settings.
Can needles from other brands be used in Janome?
Yes, Janome sewing machines are compatible with standard household flat cone needles (130/705 H system). Suitable needles include Schmetz, Organ, AstraLux, Groz-Beckert. The main thing is to follow the rule of flat cut orientation.
Why does the needle keep getting dull?
Rapid dulling occurs when sewing without a backing on glued fabrics, when caught on zippers or buttons, and when using low-quality soft metal needles. The high speed of sewing dense materials also affects.
How can you tell if the needle is bent without magnification?
Place the needle with the convex side on a flat surface (glass, table) and twist it. If the needle is bent, it will rotate unevenly and wobble. Also a sign of curvature is a characteristic knocking sound when lowering.