Singer 6606 How do i thread this Sonata Singer 6606?

Most Singer manuals are available here: https://www.singer.com/support . Searching just for 14 gave two pages of manuals with the manual for the 14U46B and 14U46 on the second page. The current link to the manual is https://res.cloudinary.com/singer-sewing/image/upload/fl_attachment/Singer-Website-Library/outdated_product/SINGER_14U46B_and_14U46_Serger_Overlock.pdf . The threading depends on your type of stitch. See page 9 for the steps common to all threading (raise the presser foot, change the thread tension). See page 11 (page 13 of the PDF) for the left looper path. The right and left needle threading is shown on page 12. If you are using a four-thread stitch, see page 15 for the right looper thread path.

I hope this helps. Check YouTube for videos on preparing a Singer serger. Those are often more useful than the manual's pictures.

Cindy Wells

It is an industrial machine and suitable for leather, so I reckon you can use any thread you want. Seems it is a 191 D300A

https://www.google.com/search?safe=off&rlz=1C1QJDB_enCA643CA644&sxsrf=ALeKk03ofduDBUiaUauroZKdpZ1bFKp1Sw%3A1613518603191&ei=C1csYMKFC6uAtgW-3LS4BQ&q=singer+191+d300aa+thread+classification
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Service and Owner's Manuals

Singer 191D Lockstich ' Instruction Manual and ... - Singer.com

https://www.singer.com > default > files > outdated_product
PDF
Read all instructions, take care of this manual, and use it as reference when necessary. Page 5. 2. High Speed Straight Lockstitch Sewing Machine ' Instruction ...

SINGER 191D SERVICE MANUAL Pdf Download ' ManualsLib

https://www.manualslib.com > ... > 191D -

View and Download Singer 191D service manual online. 191D sewing machine pdf manual download.

Instruction Manuals - Singer

https://singerco.com.au > Support

Singer Instruction manuals for new and old sewing machines and appliances. ... Singer 15-88, 15-89 and 15-90. Singer 66k. Singer 99 ... Singer Industrial 191D. You've visited this page 2 times. Last visit: 06/03/20

hi Patty.
if you go to this link there is videos showing how to do this.
Singer cg 500 sewing machine How to thread bobbin upper thread Google...

When you thread the top thread, the thread will drop down on the right side of the tension mechanism and go around the bottom (clockwise) and up the left side. Grab the thread somewhere above the tension mechanism with your right hand and then pull the toward the right (as though you are going to close the circle around the tension disk. The thread should pull on the metal wire (spring) and your thread should pop into the correct position of the tension disk. When you release the thread, the wire spring should pop back to the left. Then you will continue threading through the remaining thread guides and the take-up lever.

Here's a service manual for your machine (in case you need one):

Singer 20U31 Service Manual

Threading video:
Threading Singer 20U 20 33 industrial sewing machine

Singer 20U Industrial Sewing Machine Tutorial

Singer 20U Industrial Sewing Machine Tutorial

Bobbin winding on the Singer 20 33 or 20U

this video shows threading the tension disk:

How to Thread Singer Industrial Sewing Machine

This may help:

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Learn more about your machine here:

Singer Sewing Machine Company Serial Numbers

There are tons of diagrams, web sites and videos about older Singer sewing machines. A lot of them are very similar, so finding information for one will most likely be beneficial.

How to thread vintage round bobbin sewing machine Singer 99K

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threading antique Singer sewing machine Google Search

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You may download a copy of the manual at http://www.singerco.com/uploads/download/761_6214-6215-6217-6606.pdf

here are 2 links for a manual

http://www.sewingpartsonline.com/instruction-manual-singer-560-and-860-download.aspx

http://www.sewingpartsonline.com/instruction-book-singer-560-860.aspx

You can find Singer threading diagrams at http://www.singerco.com/resources/threading.html.