A manual here may be helpful:
Toyota Sewing Machine Instruction Manuals
http://www.aisin.at/products-en-GB/instruction-manuals-en-GB
models thread similarly so even if you don't find your particular model, the manual may be enough to help.
Toyota overlocker SL3314 threading guide EN
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SOURCE: Threading three thread Baby Lock Overlocker EF 405
Ther should be a color coded threading chart on the front inside cover.
SOURCE: Toyota SL34000 Differencial overlock instructions
Not sure if this will help but, try www.2instructions.com
SOURCE: Threading an Empisal Overlocker - Model S4D
All sergers thread the same way and sergers have to be threaded in a certain order. I made a jingle out of it...
upper looper
lower looper
right needle
left
It would be best to have a tweezers handy to help with the thread and threading.
always be sure the lower looper thread goes over the top of the upper looper then out the back. I would be surprised if your thread guides are not color coded.
If you look at the top thread guides or the spools. First from left to right thread the 3rd spool, then the fourth spool. Then you thread the right needle (the second spool) then the left needle (1st spool.
The lower looper can be tricky because you have to thread it from the back of the looper to the front.
Pull the threads out the back from under the foot. Then go ahead and run it slow watching to see if it starts making a chain. It should. If not do it over again.
Good luck
Rick Engel
SOURCE: singer overlocker model 14u34b user manual
You can find free manuals to down load from singer ..
http://www.singerco.com/accessories/manuals.html
Please vote !!
SOURCE: Re Threading a Acme FN2 -7D Overlocker.
hi i just bought same thing of trademe and no sewing machine service person in auckland or hamilton knew what to do with it they laughed at it saying it was a silly purchase. i paid 3 times and no one managed to thread it one even wanted 125$ to 'service' it!! just stupid!! my parther however who's an engineer by trade had a good look at it and he threaded it for me and made the tension perfect. now it works perfectly. if you are in the auclkand hamilton area contact me 021538471
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