Baby Lock Eclipse threader looper

Have you tried to use the wire looper threaded to get the thread through the looper?
I have often used wooly nylon thread with the looper threader(above) (several thicknesses) using a clear dissolve The to clean out the tubes where the thread flows through the looper.
Apart from this you may require professional assistance by a qualified Babylock Technician

it's possible that a part in the serger is broken or damaged it need to be serviced by a sewing machine repair shop

These machines have to have the threader tubes engaged. Do you have them set for threading? If it still doesn't thread you have to use the wire threader that was provided with the machine when you bought it. It might be in the storage compartment under the lower looper spool pin.

I "THINK" I have my machine threaded properly but it will not make a chain stitch. I followed the thread guide for the narrow three spool set up with the right needle setting.
why would the machine not catch the chain ????

This is what an upper looper looks like http://www.tradekey.com/selloffer_view/id/3755146.htm

It is the one in the back and point toward the needles.

The looper in the front is the lower looper and points away from the needles.

Open both doors on the front of the serger and you will see the loopers to the left of the thread ports.

Make sure all the settings are as they should be for threading and try again.

You can manually thread the loopers with a very fine gauge guitar wire or beading thread (looks like fishing line) with a loop on one end to hold the thread.

If you still cannot get the machine threaded, take it to a dealer to see if they have a wire threader instead of the DIY method I explained.

Get a wire threader for the machine from the dealer and store it in a safe place as it is easily lost - I lost mine 2 years ago - they are so thin they disapear!

Use tweezers. They are in your tool box.

You need to contact a Babylock dealer. I am one. [email protected]

Do you know the looper threader broken can be repair by yourself? I suggest you to order the following product:
Sewing Machine Repair Guide
It's a professional repair guide written by an expert. Besides PfaFF sewing machine, you can learn how to repair other brands of sewing machine as well. The author claims that you can earn money after you had learned the repair skills!
Good luck.

On rare occasions lint can clog the yubes on these sergers. One of the first things I do is thread the wire through in the opposite direction. It will sometimes push the blockage out. The other option is to use an air compressor and again blow the lint out from the opposite side. If this does not work take it to a service man.