• 678-431-1467
  • This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Mon - Fri 9am - 5pm EST

DIY Embroidery Machine Repair

Happy Embroidery Machine:


Happy Needle Bar Driver:

Some Happy Embroidery machines use a Needle Bar Driver and roller bearings instead of a Reciprocator. The needle bar Driver is shown in the diagram below as part number 18. The whole assembly is expensive and may not be available but you can order the roller bearings and the C-clamps.

If it has been awhile since you have had these changed it may be a good idea to replace them. When the roller bearings get brittle with age and wear out they may give the same symptoms as a broken reciprocator.

The upper face plate may also cause issues with the operation of the machine. Please review these parts as some others that may be needed.



Sometimes your Avance' 1501 may give a main motor lock or main shaft error. This error also is known to occur in Toyota 9100, Toyota 9000, Tajima TEJT Neo, and Tajima TEJT Neo II.

A number of things may cause this, including but not limited to:

  • Stalled Rotary Hook-
    • Worn, friction seized. Caused by heavy use and poor oiling.
    • Object stuck in the rotary hook. broken needle, thread, etc.
  • Main Motor defect.
  • Dry bearings/ bushings.
  • Main motor linkage.

This article addresses the Dry bearing/bushing issue.




How do you find out how many stitches on a Toyota Embroidery Machine? These videos explain how.


This also works on Tajima TEJT (NEO  and Neo II)




Do it yourself information for working on your embroidery machines


Rotary Hook

Rotary hooks rotate twice every time the needle comes down, so if you run your machine at 700 stitches per minute the hook spins at 1400 stitches per minute (SPM). The interior of the Hook has a rail that slides in a raceway and holds the hook together. There are no bearings, so the rail and raceway are metal on metal. This is the only point on the machine that most manufactures recommend you lubricate every four hours of use. ​Rotary hooks may need to be replaced at around 3 to 5 years, depending on use and maintenance of the machine.


CNC BoardWhat are the boards and electronics in a commercial embroider machine, and how do they interact with each other?

I get quite a few questions about electronics and boards in embroidery machines. This is some basic information about the boards involved. Your commercial embroidery machine is basically a CNC Sewing machine. CNC stands for 'computer numerical control' which is a system that tells a machine to move to this coordinate and do something. then move tho this location and do something else.

You may use a CNC machine every day and not know it as a cnc machine. Your Printer is a CNC machine. Laser cutters, plasma cutters, 3d printers, and cnc routers are examples of other CNC machines.

Again basically the machine moves to a X - Y Coordinate and then does something. Your embroidery machine moves a shirt or cap to a specific location and does a stitch.

Click "Read More" to find out more information on this topic.



Oil and Grease for your Embroidery Machine:


In the maintenance field the general rule is anytime metal rubs against metal you put a dab of grease on it. Machine maintenance will prolong the life of your machine and give you more sewing time. Embroidery machines do not last forever but a little preventive maintenance will keep your machine running and trouble free.

Be aware that there are many types of oil and grease on the market, and some may not be too healthy for you machine. Let's examine the maintenance schedule and I recommend to keep you machine oiled and lubricated.

 You should follow the recommendations of your distributor and/or manufacturer. They usually have information and directions in the users manual or on their website. With that information in mind with most companies there are 3 different oiling/lubrication schedules. This of course depends on how heavily you use your machine.

Under normal use where the machine is used consistently but not constantly most manufacturers recommend a Daily, Weekly, and Yearly. If you are running constantly, as in 1000s of shirts none stop all day you may want to use 4 hours, Bi-weekly, and Bi-annual.



© {2007} AJ's Stitchin' Time, AJSTITCH.COM, AJST, Dennis Wilson. All Rights Reserved.

Please publish modules in offcanvas position.