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Juki MO-644D Mechanical Sewing Machine Questions & Answers
Juki Sewing machine DDL-555. After 4-5 hours use feed not moving
Sounds like as the machine builds up friction from extended use, some vital part is lacking lubrication and is seizing up. A good service person will remove ALL of the covers and thoroughly air clean and oil every moving part. Sometimes these dry points are hard to find and patience is required.
You can get a sewing machine oiler with a long applicator and put a drop of oil on anything that moves, but over oiling can be messy.
Juki ddl 555 knee lifter is not lifting the foot. How can I fix it?
I imagine that it is the mechanical knee lift that you actually lift with your knee? Sometimes the screw that holds the knee lift rod comes loose a little and starts to slide in the holder. Sit on the floor where you can see the underneath of your table and use a wrench or vise grip to loosen the bracket that holds your knee lift bar with the pad on it. Move the bar to the left and retighten the screw and I think you will be ok. Sometimes if there is too much oil in your pan or you have moved the machine and some of the oil spilled out, a little oil gets out of the pan onto the bar and makes it start to slip. If that doesn't work we'll try something else.
2nd needle/4th thread - threading confusion
With some sergers, but not many (singer 14u64 comes to mind), the top of the stitch will be an overedge that mates with the right needle thread, and the left needle thread will appear as a separate straight stitch. When you look at the underside of the stitch, the overedge will go all the way over to the left needle (the full width of the stitch). This is normal if you have this type of machine. Another stitch some sergers do (2/4 thread sergers) is a 2 thread chain thal looks like a lone straight stitch on both sides, and a 2 thread separate overedge.
As far as the threading of the takeup, it totally depends on your model. Always post your model number when you have questions as sergers vary greatly in design.
Rethreading my juki overlock
threading industrial overlockers can be very tricky do you not know anyone who ever worked one in a factory because showing is much easier than telling
Whats the differance between a overlocker and a
A overlock machine helps you clean finish the seams. You can do many things with a overlock It can cut your sewing time down. The sewing machine is good for many thing too,Mostly the construction of the garment. I have three machines. A indstrialstraight stitch, a home machine and a overlock.Al for different tasks.
Does the Juki DL-555 sew leather?
ordinary drop feeds are not suited for sewing leather,ideally a needle feed or machine with a walking foot mechanism is best suited.if you are stuck with this machine only,there are a couple of things which may help.on some of the juki ddls there is an adjusting screw and locknut on top and in the middle of the arm of the machine .turn needle by hand wheel to bdc and loosen this screw and turn clockwise slowley!
this will raise the presser foot very slightly,so when the feed dog is at tdc it can improve the feeding .
spear point needles are reccommended also.
one other idea,but you need a qualified mechanic to do this is to alter the feed timimg slightly on the eccentric on the top shaft.as the needle is entering the fabric,slow the timing down so the needle enters the leather just as the material starts to move.
hope this helps!
cheers kev w 07725903110
I have a brand new Juki MO-50e and the threads are loose on the back of the fabric, how do I fix this?
- . re-thread your machine with a rainbow of colors. (important that you remove the existing threads if you are not sure it is threaded properly.) make sure you are lifting the presser foot while rethreading.
- Sew a good 6 inches.
- Look to see which threads are the offenders and tighten the co-responding tension knobs a little.
- Sew another 6 inches. Examine the result. Adjust tension again if needed.
- Work this way until you have the stitch balanced.
- Finally when your stitches are perfect. clip the threads at the spools in back. And tie on the coordinating colored thread for your fabric.
Get used to this procedure since it is common to have to adjust tensions when you change fabric. Good luck!
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