I have a new Viking Huskylock S25 and the serger tensions are off and I cannot get them adjusted.
How do you mean the tension are off? A serger should have 3 or 4 tension knobs (although yours looks like it is push button digital settings) and generally from new these will produce a standard stitch when all are set to 5. Are you sure that you've got the thread pulled into the tension discs fully? Check each one by pulling on the thread below the tension disc and feel for resistance, if the thread pulls very easily, then recheck and thread again.
Have you got the thread aerial raised up to the full height? Remember also to put the plastic cone holders under the thread cones as you want the cone to stay still and the thread to feed off it - it does this very fast, sergers sew at 1500 stitches per minute so the thread streams off the cones very quickly.
Using a serger is quite different to a sewing machine and your model looks like its one of the later computerised ones with multiple stitch options including coverstitch. I'd suggest that you go back to your dealer and ask to spend time with them for a demo, thread up in front of them for pointers or take a class to familiarise yourself fully with the machine. Then go home again, break out the manual, and go through threading up from scratch several times until you've got it off pat. Remember to thread top looper, bottom looper, left needle, right needle in this sequence always, then pull all threads under the foot, lower pressure foot and serge off a short chain. To change colour thread, you can always cut and knot on new threads, turn tension down and pull through the loopers, but you've got to thread the needles fresh each time you change colour.
There is some good videos on You-tube, Nancy Zieman has a several and she's also written several books on using a serger and obviously the manual is first point of reference.
Each fabric will behave differently so for each new fabric, you will need to adjust tensions and move the blade to get it stitch and just encasing the cut edge at a suitable width. To work out how it should look, break out some ready to wear garments and have a look at those seams, then test and practice with your machine to get a similar stitch. Always test serge two thickenesses if you are going to use it to construct your garments and pull open from the right side to ensure the needle thread is tight enough so the seams don't pull open under wear.
Good idea to keep your test seam samples in a notebook and write down the settings you used for reference next time. I have to say, I've done flatlock with silky decorative thread once in 19 years - but I do know how to set up the machine for this. However, rolled hem with wooly thread is very useful and I often use this to edge hems. I'm envious of your coverstitch option, this is great for hemming and necklines and is something early sergers didnt do.
Just checked out this model on an Ebay vendor's site and it mentions a training DVD, you've got several different stitch types to master with this machine so there will be some learning and practice involved to get it right. Good luck - I hope this is of some help but I'd be visiting the dealer for specific help if you can.
Apr 29, 2011 |