Question about White Sewing Speedylock 1600 Mechanical Sewing Machine

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I have a coverstitch PF857 and I have broken the upper over edge looper I have sent for the spare part but been told it must be set what does this mean and how do I do this

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There are many adjustments which can be made: up, down, twist right or left, slide front or back. The main question is why did the looper break? The needlebar, upper and lower looper and the needle guard all must be in perfect syncronization. The upper looper must be set so that, on its movement to the right, ever so slightly brushes the needles. Then, as it travels upward, it must cross behind the lower looper at just the right spot as close as possible without touching. If you are very mechanically inclined, give it a shot. If not, the risk of further damage is high.

Posted on Jul 12, 2009

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Posted on Jan 02, 2017

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1 Answer

Setting to do the edge small stitchng on a Bernette overlocker


Rolled edge? Upper looper = 4.5, Lower looper = 6.5 or more, Right needle=4.0, No left needle, Stitch length=1, Differential=N, Cutting width=1 to 1.5, No stitch finger

Apr 12, 2018 | Sewing Machines

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Setting a elna 792d for rolled hem


I don't know your model in particular but generally this is how you set up a serger/overlocker to create a rolled hem. Remove the left hand needle and thread if 4 threads are threaded). Now there is usually a lever around the stitching area that you slide back towards you to remove the stitching finger back (disengaged). Then you adjust the top looper tension looser (about 2-3) and lower looper tension tighter (7 or 8). Leave needle tension at normal tension (5). You may need to move the cutting blade to the right too. The technique is to cut the fabric wider but with a narrow stitch so the cut edge rolls under within the stitching. You want the top looper thread really loose so it rolls right around underneath up against the needle thread, the lower looper thread needs to be tight and almost invisible, pulling the upper looper thread down. I usually do a few test runs and check the stitching. Once happy, I turn the stitch length right down to 1 so it is very dense. This uses a lot of thread up.

Ideally use a wooly overlock thread on the upper looper as this "fluffs" out once stitched and "fills" in covering the fabric edge completely.
some good images here
Sewing Basics Narrow Rolled Hems with Serger Sew Mama Sew Outstanding...

Jul 18, 2017 | Elna Sewing Machines

1 Answer

How do I adjust tension on a Janome Harmony 9102D


Sounds like you want to do a rolled hem for a handkerchief edge, I do the following to create a rolled hem on my over locker. Take out left needle and cut and remove that thread. Open front cover and slide back lever for the stitch finger in the needle plate, this finger stops the fabric rolling under thread tension normally so you need to pull it back out of engagement. Your Janome may have a similar means to select the rolled hem or you may need to remove the stitch finger with a screwdriver, it varies between models.

Thread upper looper with wooly nylon and right needle and lower looper in matching colour thread. (You can go wooly on the bottom looper but it hardly shows so I never bother.) Disengage upper blade and move the fixed lower blade to the right to trim less, then lower upper blade back into position. Now tension, needle leave alone (5)' upper looper very loose (2-3) and lower looper tighten up to 6-7 and test stitch. You want the upper looper thread to go right underneath and the lower looper thread to disappear against the needle stitch. And the fabric to roll inside the stitching. Finesse tensions on the loopers until this is right, you may need to change blade position too, depends on weight of the fabric and how it rolls. Once this is right turn stitch length down to close up stitching, 0.8 or even 0.5 if you want full coverage. Thats it. You can use differential feed if you want a fluted rolled edge, nice on knits.

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1 Answer

How do I thread the cover stitch looper on the Elna 744?


On my coverstitch,the lower looper swings out to the right so I can access the thread eyelet, wondering if yours is the same?. And i dont pull the thread up to he top, just leave a tail loose, make sure i swing the looper ack to the left, then close cover and stitch.

Mar 01, 2015 | Elna Sewing Machines

1 Answer

What is the tension settings for normal over locking with the Elna 4de


First of all ensure that the serger is threaded correctly.

The two setting which you mention are really a 'range' for an 'average' setting.

Using 'average' fabric such as a medium weight cotton, flannel, etc.; set each of the tensions in the middle of the range and test the stitch. There may be minor adjustment required to get a perfect stitch.

Once you have stitched that first sample, here are some possible minor adjustments required:
1. Tear-drop shaped loops on the underside: Check that the thread is firmly set in the tension dial by giving the needle threads a good snug pull above the tension dials while the presser foot is down.

2. The zig-zag like thread on top should meet the ziz-zag like thread on the underside right on the fabric cut edge. If the meeting happens on top: reduce the upper looper tension slightly and increase the lower looper tension slightly ... test sew and recheck. If the meeting is on the underside: increase the upper looper tension slightly and decrease the lower looper tension slightly ... test sew and recheck.

3. If the meeting does happen along the fabric cut edge but the meeting is hanging beyond the fabric cut edge: increase the blade position (that is, move the blade to the right). If the fabric is creating a ridge or tunnel; move the blade to the left slightly.

Please let me know if this has solved your problem. Otherwise let me know what is happening with the stitch quality.

Sep 16, 2014 | Sewing Machines

1 Answer

I want to use the 2 thread rolled edge. I put the 2 thread converter on the upper looper. When I thread the lower looper, where does the thread go - ie does it go over the 2 thread converter on the upper...


Thread the lower looper like normal, and you needle. When the upper looper comes up it will push up the lower thread and then you can put it under the pressure foot torward the back and start to serge.

Apr 19, 2011 | Elna 945 Computerized Sewing Machine

1 Answer

What is the correct setting for a hand rolled hem?


I do not have this brand, but thought these instructions for a 2-thread rolled edge might help -

Presser foot - Rolled Edge
Needles - Right or Left (depending on the width you want).
Stitch Width - Normal to Wider (your choice)
Stitch Length - 1 mm/left needle; 0.5 mm if using the right needle.
Differential Feed - Normal
Blade Position - Up
Right Needle Tension - Tighten
Lower Looper Tension - Normal or Loosen
2-Thread converter - engaged.

The converter may also be referred to as a subsidiary or auxiliary looper. This fits into an opening near the tip of the upper looper to "trick" the upper looper into thinking it is threaded.

The above information is from "Serge With Confidence" by Nancy Zieman. I have found this book to be more helpful than the instruction manual that came with my Babylock Imagine.

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1 Answer

How to use double needle


That stitch is called a coverhem or a coverstitch. It is made with a coverhem machine which is basically a serger with an orbiting looper. Many upper end home sergers have coverstitch capabilities (Elna 945)

To use a double needle, simply thread two threads the same way that you would thread one. ONLY USE A STRAIGHT STITCH, AS THE NEEDLE WILL STRIKE THE PLATE IF IT ZIG ZAGS TOO WIDE.

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1 Answer

Hi , my husqvarna 936 will not sew a coverstitch although the overlock works perfectly , is this a timing issue with the looper? can i solve the problem myself? if so how do you line up the looper with the...


No brilliant idea how to fix this yourself, sorry Frances - but I would phone the repair shop right away and tell them what has happened. They need to correct this for you free of charge - they returned to you a machine that was not in working order.

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2 Answers

Rolled hem or rolled edge


You need to disengage the cutting blade by openingfirstly opening the front and left hand side covers. pull on the larger of the two silver knobs and slide the red lever towards you. I'm not sure what the tension settings are, but I'm certain you need to reduce them a fair bit to aid in the rolling effect. I only use 3 threads when doing a rolled hem.
My description isn't too detailed but I hope it helps!

Jun 11, 2008 | Janome MyLock 634D Mechanical Sewing...

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