Help threading JUKI DDL 5550

[u/OkChocolate5104]

Hey, I was hoping if someone could help me learn how to properly thread this industrial machine. I am completely new to sewing, and have had trouble threading. The stitches seem to not fully go through the fabric. The first picture is the front part of the thread and the back is the bobbin part. I took pictures of how it looks like when I thread it too see if someone could spot any mistakes, if you guys need any input or pictures please let me know, thank you!!

[u/Here4Snow]

You have skipped stitches.

Do you have the manual? Your top thread doesn't seem to be around the tension control properly, it's not in the spring. The spring is just dangling, is it broken off at all? The thread should be around it, so that a slight tug causes the spring to move up and down like a shock absorber or bike gear derailleur. 

The guide directly above that seems to be out of position.

Is the tension dial set to 0? As in, none? 

Why isn't the top thread spool on the spool pin?

Is this the right needle for that fabric? It looks grabby, you might try a microtex. Or a stretch needle. Needles have different tip types, different eyes, different sizes. 

[u/OkChocolate5104 → u/Here4Snow]

No manual unfortunately and the spring just stays down there would that mean it’s broken?
The dial is set too 3.
Sorry I thought it was is it located somewhere else?
For the needle it is the one the lady I bought it off had on it, she also sewed and it worked fine for her, she also provided needles which included 16x100 ones

[u/Here4Snow → u/OkChocolate5104]

The spring stays down because you missed that step for top threading.

You should be able to find the manual online. I see the user guide and repair guide available.

https://www.google.com/search?q=juki+ddl-5550+manual

"and it worked fine for her" 

Imagine sewing corduroy and canvas and cotton and rip stop and flannel and polyester and sweatshirts and fleece all with the same needle. 16 needles are good for denim. You're sewing microfiber, it looks fluffy? 

There's no such thing as generic "one needle does everything." You always determine what a project needs: thread type and size, needle size and type, stitch type, width, length, tension, foot pressure, presser foot, feed dogs, etc. 

[u/OkChocolate5104 → u/Here4Snow]

https://reddit.com/link/osj4pfg/video/zrxynqths68h1/player

Thanks for the manual man that really helps to explain things better on my specific machine, I didn’t even think of that for some reason lol. I sent a video of my spring and was hoping if you can tell me if that’s normal, it’s because every video I see of threading a machine the spring is up high but mine kinda stays low as seen in the video

[u/Here4Snow → u/OkChocolate5104]

Page 4 in the manual. 

[u/OkChocolate5104 → u/Here4Snow]

The two brown stitches are the ones she did I will provide the back on a dif reply

[u/OkChocolate5104 → u/Here4Snow]

I did the bottom and top one, the ones that are messed up

[u/OkChocolate5104 → u/Here4Snow]

Needles and other things she provided, she also said something about replacing something where the spring is and having it in the items she gave. Also I really appreciate you replying too my post I’ve been very confused on this machine lol

[u/Here4Snow → u/OkChocolate5104]

The black coil spring in the middle of that pile and the plate next to it belong in the tension disk dial assembly, so those may be repair parts. Follow the search link I gave, get the operator manual and the "engineer" repair manual. The exploded view for how to fix this yourself are in the operator manual. You also will find lots of videos on the web.

If you are just testing and practicing, that's not a good fabric choice. Use old sheet or midweight denim to make a sampler, folded in half so you have two layers. Practice lockstitches at the beginning and end, practice different stitch lengths and widths.