Question about Simplicity SL370 Mechanical Sewing Machine

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The upper blad

Where can I just pick up a upper blad and not pay a arm and lag
How can I sharping the upper blad
So I have to repace the upper and lower blad at the same time
Please Help

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Re: the upper blad

I can help you with this, i have a blade, but you can save alot by going to a scissor sharpening place or a knife sharpening place also, let me know

Posted on Jan 21, 2008

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1 Answer

The tread from the lower looper is not being picked up by the upper looper how o i fix this?

Best advice would be to consult your owner's manual. The most common serger problems are caused by incorrect threading or not threading the threads in the proper order. With most sergers, the upper looper should be threaded first. The lower looper is threaded second and the lower looper thread tail should drape OVER the upper looper. Then thread the needles.

Be sure when threading that each thread is pulled snugly into the tension disks.


Nov 15, 2015 | Janome MyLock 644D

1 Answer

Timing if upper and lower loopers

if you look closely at the components of the machine they should have small marks on them that line up with each other or marks on the case. most sewing machines are timed this way the marks have to be lined up on both arms and that should work.

Jan 14, 2008 | Simplicity Frontier SL390 Mechanical...

1 Answer

How do I reassemble drop-in bobbin case for Brothers XL 2600 free arm?

Do you have some pictures of the area involved. I know how to put these things back but I can't think how to explain it to you.. pics might help me show you.

Brother has an outstanding service department, and if you don't have a manual, they should have one. Should have a pic of how it goes together.

Aug 02, 2014 | Brother XL-2600

1 Answer

Needle goes down but don't pick up the bobbin thread. It come up and tell me that my upper or lower thread is cut.

try changing the needle
try rethreading the machine top and bobbin
make sure to use every thread guide-this is improtant for the
thread tension
make sure the bobbin is turned correctly in the bobbin case
also could be a problem with the computer motherboard
or there could be a problem with the timing

Dec 03, 2012 | Brother PE-150V Computerized Sewing...

1 Answer

My bobbin thread will not thread. When I bring the needle down, it comes up without the bobbin thread. The mechanism moves, but no thread. How do I fix this problem?

check the bobbin to make sure it's not warped
check the needle to make sure it's not bent-roll on flat surface to see if it roll correctly
make sure the bobbin is in the bobbin case correctly
make sure you have a 3 to 4 inch tail on the bobbin-so the upper thread can pick it up easily
make sure you have a 3 to 4 inch tail on upper thread also as it picks up the lower thread
or you can hold the upper thread with your hand to the side of the machine & use the handwheel to lower the needle as it picks up the lower thread
pull both threads to the back behind the needle
make sure there is no lint or loose threads in the bobbin area

Sep 01, 2010 | White Sewing 2200 Multi-Tasker

1 Answer

I bought a used juki DDL-8500 and i am having difficulties to adjust the stiches which are being made by it. i will b grateful if u can attach a manual for the sewing together with your reply.

hi there
you can go to www.juki .com
under industerial sewing machine youy can download DDL 8700 instruction manual it's same DDL8300 model.
now you can do next steps
1- change needle with new one.
2- you can find tow mark on needle bar the upper mark for adjusting the hight of needle bar bring the needle bar at lower position and check if the upper mark aqual with the lower bushing or no.
3- when the lower mark aqual with the lower bushing at this time the blad point of hook must be at the center of groove for the needle if no lose tow screw for the hook and readjust the timming between the blad point for the hook and grove for needle bar
best regards
ashraf abozid

Aug 05, 2010 | Juki DDL-8300

1 Answer


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

Model 3205 FA not picking up bobbin thread, needle goes down but doesn't pick up bobbin thread, needle not bent, macine was working fine then all of a sudden bobbin thread stopped. Can't even pick it up to...

- check ifu are using same needle model.
- check hight of needle bar is ok
- check timming between needle bar and hook.
- check if your material is very stritch or no
- check blad point of hook is ok or no
best regards

Aug 15, 2009 | Necchi Sewing Machines

2 Answers

How do i adjust the upper cutter on a huskylock 905 serger

There are no specific specs other than "eyeballing" it. Make sure the bottom blad is level with the plate of the machine. The upper cutter should meet and overlap slightly. It is usually a trial and error thing to get it aligned. Good luck.

Feb 13, 2009 | Husqvarna Huskylock Computerized 936

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