Attaching the cover stitch plate

Most likely. Most overlockers can make a rolled hem. You will probably want to do a lot of practicing on scrap chiffon before trying it on the real thing. It involves using only one needle, both loopers, and making appropriate adjustments to the machine.

Serger 101 Threading the Juki MO 654de Machine for Roll Hemming by CKC...

How to Serge Rolled Hem

Serger Stitches 101 Cheat Sheet Never Ever Without It Your New Must Have...

Bernina has some very nice Serger Workbooks that could be helpful:
Bernina Mastery Workbooks

http://www.juki.co.jp/household_en/serger/index.html

Try one of these , should be similar

YouYube videos in link below:

Google

Make sure you are threading the machine correctly. Make sure you are using serger thread that isn't old. Make sure you are undoing all the threads when it breaks and thread it from the beginning.

Make sure you have the right needles in their respective places. My Juki MO has two different size needles.

Domestic sergers usually sew 1500 stitches per minute, you can't increase this. You can make the stitch longer which will move a bit more fabric through with each stitch but obviously you need the stitch to hold the fabric too.

If you find this is not fast enough for the volume of work you need to do, then shop around for an industrial machine. Usually built into a table, and designed to feed very fast. Try the Juki website, they do a big range of industrial machines such as these http://www.juki.co.jp/industrial_e/products_e/apparel_e/cat6/

Go back to the seller. If it was listed as new and does not work, the seller should either repair, replace, or refund. Note--you may need to get eBay involved in case the seller refuses to address the issue. EBay will refund your money and reverse the charge to the seller.

This video starts off a little ****, but expected if you have ever visited the Threadbanger site - http://www.metacafe.com/watch/1462325/how_to_use_a_serger_indie_pendent_designer_spotlight_thread_he/ Not your brand, but the same "serger basics". Lift the antenna to it's highest position. Set the tensions to zero. Have the presser foot up when threading. Raise the upper looper to it's highest position. Sergers are great little machines, but they can be nerve racking when it comes to threading. After years of threatening my old FunLock, I bought a Babylock Imagine with air-jet threading - what a relief!

Open the font of the serger and the instructions will be printed on the serger or on the door.

Raise the presser foot and set the tensions to zero when threading.

Turn the hand wheel so the upper looper (curved one) is at it's highest point and thread it first, and then the lower looper.

With some sergers you must thread in a certain sequence. This should be indicated in the instructions on the serger.

Set the tensions back to normal ( 4 - 6), lower the presser foot and run a length of stitching to see if the threads are knitted together as they should before you start serging your project.

You can find the manual here:
http://www.juki.it/multimedia/prodotti/manuali/istruzioni/ita/15.pdf

Visit us at www.ifixmachine.com