Question about Juki MO-644D Mechanical Sewing Machine

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I have a juki mo-3614 serger and I can't seem to get the blades lined up right for cutting. It just seems to want to roll the fabric instead of cut it. How do I line up the blades the right way.

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First, pull out the bvlades and make surte they are sharp. It could simply be that they are dull. Next, line tyhe bottom blade up level to the surface of the needle plate. The top blade should be adjusted to where it slices against the botom blade. You may have to experiment with the height adjustment on the top blade, assuming you have a suitable cutting edge.

Posted on Dec 15, 2008

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2 Answers

I have a Juki MO-816; it has stopped properly cutting edges before stitching by sucking the trim into the needle/loopers . Cleaned the blades with alcohol. What else can I do to address this issue?


Blades do become dull over time, even more so if sewing tough fabric (denim, etc) or hitting pins. Consult your owner's manual. Replacement blades are available but usually only one blade can be replaced by the owner. Frequently the other blade needs to be replaced by a qualified technician to meet specifications. Do not tarry in getting the blade issue addressed. The fabric being sucked into the loopers could cause looper damage/breakage or affect the machine's timing.

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Sep 27, 2016 | Juki Sewing Machines

2 Answers

Do I have to have the cutting blades on the machine to serge material? Also, what's rolled hem and whats overlock?


No you do not need the cutting blade to serge but you shouldn't have to remove the blade it you should be able to push the knob at base of blade inward or pull it outward to turn blade downward out of the way.

TUTORIAL - How to do a rolled hem on a serger - StitchCraft

http://stitchcraftonline.com/blog/?p=42 - 71k - similar pages Aug 5, 2009 ... One of my favorite uses for my serger is to do rolled hems. A rolled hem is were the machine folds the fabric under a tiny bit and then stitches it.

Jan 05, 2015 | Sewing Machines

1 Answer

Why does fabric get caugh on the roll hem devise when over locking


this sounds like an overlocker/serger machine you are using? if the fabric is catching on the overlocking tongue it could be a number of factors, have you lifted the top cutting blade out of the way and forgot to put it back into place? That would be my first thought, the top and bottom blade move against each other cutting the fabric. Rolled hemming usually requires the blade to be set on about 2, or middle of its setting range, the stitch finger is pulled back out of the stitching area, top looper thread is loosened off and bottom looper thread is tightened up, resulting in the top looper thread wrapping around the edge of the fabric and pulling the cut edge down under within the seam, forming the rolled hem.

May 13, 2014 | Elna Sewing Machines

1 Answer

BLADES DON'T MEET ON OVERLOCKER


hi there
please see link to download user manual for JUKI MO-644D
http://www.juki.pl/support/HSM/Manuals/MO-654DE_manual_UK.pdf
and you must made upper and lower knife very close to cut material correctly.
regards
ASHRAF
CAIRO - EGYPT
aabozid@hotmail.com

Nov 22, 2013 | Juki MO-644D Mechanical Sewing Machine

1 Answer

I want to adjust my serger yuki mo 2516n but i don't still have it's manual instructions


if you go to this page http://www.juki.co.jp/household_en/serger/index.html there are the current household sergers from Juki and a four page threading diagram for them showing the different stitch set ups.

If your serger is a domestic one too (the MO in front makes me think so) then you may find that the threading up is very similar on your model. Stitch length is usually a kob on the right marked from 0.5 to 4 and differential feed knob is usually there too, usually marked from -0.5 up to 1.5. Tension settings are usually around 5 but you adjust the looper tensions to suit the fabric and how wide you are trimming it with the blades.

You could contact Juki or their local distributor in your country and arrange to purchase manual for your model. http://www.juki.co.jp/household_en/dl/index.html this page gives a listing for countries.

it is also available on line to purchase as a black and white pdf file, http://www.sewusa.com/Sewing_Machine_Manuals/Juki_Manuals/Juki_Industrial_Sewing_Machine_Manuals/MO-2500_Instruction_Manual.htm for $8USD

Jun 20, 2011 | Sewing Machines

1 Answer

I change the news blade for Juki MO2516N serger but it doesn't cut the fabric. Please advise me how to fix it. Thanks, Van


hi there,
which blade you change? upper or lower one?
for lower one just make the top surface for blade aqual with throat plat.
for upper lower turn handwheel to make blade at lowest position in that time the upper lower must be lower than lower blade by arround 2.5mm and keep in your main the two blade also must be very close no space between it.
best regards
ashraf abozid
aabozid@hotmail.com
CAIRO - EGYPT

Jun 14, 2011 | Juki MO6714 Mechanical Sewing Machine

1 Answer

JUKI MO 134 SERGER


How to Thread Juki MO-134 Serger from watching lady at Lyles. Turn upper blade up. Push in first then turn up.It makes threading easier. Blue Thread upper looper first. Pull thread through tension knob. Don'tjust lay it there. (She thought that is what I must have done) Orange Thread lower looper next. Pull thread through tension knob as inthreading upper looper. Adjust lower looper so it is right nextto upper looper so that their points are almost together and directly belowsewing needles. Lower looper will be in front of upper looper (I believe). With tread from upper looper pulledback, slightly lift lower looper above upper looper and thread. I think this isright. Pull thread back with other thread. Tension is the key. Remember that. Yellow: Thread left needle first.Remember tension. Pull thread through curled wire on left side of needle arm. Green: Thread right needle. Rememberabout tension. Pull thread through curled wire on right side of needle arm. b> Note: Before sewing turn the wheel tomake sure the stitches are going together correctly.

Apr 16, 2010 | Juki MO-644D Mechanical Sewing Machine

1 Answer

My blades won't cut, they seem to be rolling rather than cutting


check bottom blade,it should be flush with needle plate. when you turn hand wheel by hand the top knife should be even along the length of the bottom one .the top knige is held by a 7 or 8 mm screw [looking straight at you] slacken this ,turn wheel till knife come to bdc and push the top blade against the bottom one. however if the edges of the knives are shiny or worn ,it will never cut. you can buy them relativly cheaply [eastman staples huddersfield is main juki agent].

Jun 22, 2009 | Juki MO-644D Mechanical Sewing Machine

1 Answer

Serger blades do not cut.


For now, it works only satisfactorily:
I applied alcohol to further clean both blades,
dried and then oiled them. There seemed to be a slight gap between blades;
the fabric was dragged into the gap instead of being cut.

Jan 10, 2009 | Elna 1010

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