Question about Brother PE770 Computerized Sewing Machine

1 Answer

Top tension with the brother Pe 770 embriodery machine

Top thread loopy

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 20 Answers

I had many problems with tension until I moved the thread spool to the back on an outside stand. Check the thread guide path for lint. If everything is good then read the manual about adjusting the tension.

Posted on Dec 12, 2013

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad
  • 55 Answers

SOURCE: Thread Breaking On Brother Sewing Machine

if thread is good quality you may have a sharp groove in your needle plate hole from needle breakage. if so, polish with emery tape.

scott

Posted on Jul 27, 2009

  • 1 Answer

SOURCE: Brother Window Matic Model HA3-B5

I believe this is the manual that you need.

http://gotoes.org/sales/BrotherSewingMachineManuals/ViewInfo.pl?Brother=1&Sewing_Machine_Model=window-matic

Posted on Jan 01, 2009

bargainbox
  • 1388 Answers

SOURCE: Huge loops on back of fabric!

Please TRY the solution BEFORE giving your considered rating.
Specific detail on bobbin case adjustment (with picture) near halfway down reply, the remainder will help you achieve a balance of top and bottom tensions.

Ensure that all is clean and free of lint and jams, this is the most likely cause....now for tension troubleshooting .......

This solution is for tension problems...if you cannot form any sort of stitch, the issue is quite different, so please let me know if you need a different problem solved.....

It is quite long, but just work through each section in order.

The "knotting up" can reveal a lot. If you have loose threads on one side or the other, the tension on the opposite side will be the culprit.

QUICK SUMMARY FIRST:
Ensure sharp new needle,
Thread guides and Bobbin are Clean & Clear of lint
Set Top Tesion to 4 ....then....
Balance Bobbin to suit.

TOP THREAD TENSION:
If the looping threads are on the underside as you sew, it is the top tension. Top tension ought to be between 4 & 6 (this variation to allow for the different weights of fabric in your projects).

IS YOUR NEEDLE SHARP ?
If you are using a needle that has seen quite a deal of work, or you suspect it may be blunt, change it for a new one !

TOP TENSION & GUIDES:
Make sure that when you thread the machine the presser foot is up so the thread goes between the discs and not to one side, top tension between 4 and 6, and that you have threaded through all the guides, including the last one, usually on the needle arm, just above the needle clamp.

It may be there is lint trapped between the discs, this will keep them slightly apart and reduce the actual tension, sometimes dramatically.

If tensions appear correct, and the thread is definitely in the channel between the discs, but still too loose and looping, try raising presser foot and remove your thread.

Now, with a 2" (50mm) wide strip piece of fabric 8 - 10" (20 - 25cm) moistened with methylated or denatured spirit, gently insert the fabric strip and clean between the discs with a see saw / to and fro action.

In the worst cases, gentle use of a needle to pick & remove the jam may be necessary, but be very gentle and make sure the tension is set at Zero and the presser foot is raised, (to disengage tension plates).... do not gouge or score the plates, they need a polished surface to work correctly.

BOBBIN TENSION:
Far less common, but if the loose threads are on the top, it is bobbin tension that is loose, it too may have lint in the spring and be giving a "false" tension.

I would not recommend fiddling with bobbin tension without good reason, it may end up with missing small screws and spring pieces, however, you can take the needle plate off to clean
the hook race area (where bobbin case sits)

...this is just good housekeeping, my wife does this every time she replaces the bobbin....

just take it out and clean the bobbin case and the fixed metal hook race with a small brush to remove lint. If there is a significant amount of lint, use a vacuum and small brush to get the worst.

Then wipe all this area with a cloth or cotton bud (Q tip) moistened (not soaked) with methylated spirit, especially if there appears to be fine dirty deposits....oil and lint combine to conspire against you.

If it seems likely that you ......really ....do .....actually .....need .....to adjust the bobbin case, first check there is no lint trapped in the metal spring where the thread is tensioned.

TOP LOADER:
Drop-in Bobbin case will look similar to this image with the tension screw in the middle of the metalwork....

4c76dc1.jpg ...the other screw at one end is holding it all together, so beware....it is not a tragedy to undo the whole lot and clean it, but very gingerly and lay the bits out in sequence and orientation, or you risk tearing your hair out !

FRONT LOADER:
....this is a bobbin case from a front loading machine and works in a very similar fashion to the top loader with drop in bobbin, again, if you dismantle it, take care so you can put it all
back properly.
165ca5c.jpg FINISHING UP
GETTING THE BALANCE RIGHT:
When you are certain there's no trapped lint in top tension or bobbin, set the top tension to 4 and the bobbin tension to a point where you just begin to feel resistance.

Try using good quality thread of contrasting colours so you can more easily spot the changes.

Set your zigzag to one width less than maximum (eg. 5 of 6 ...or... 4 of 5 etc) and sew a sample for a few inches and check the result.... adjust the bobbin tension screw very little at
a time, perhaps 1/16 of a turn.

You may find you are playing with this balance for some little while and if you are putting the needleplate on and off each time begin to think it cannot be correct to do this.....BUT....it is,
and eventually, you do get a "feel" for the correct tension and then it happens quite quickly.....as a user you won't be doing it very often unless there is lint built up (or are there small hands at work around the house !?!?!)

OTHER ISSUES:
If you live near the ocean as we do, salt air can play havoc with metalwork inside and out, so to help minimise this, keep a few small packets of dessicant (silica gel) in your machine
case....no case ? then make some sort of cover !

Same applies in any damp or humid environment, keep your machine dry and dust free.

Budget for a proper full service every couple of years (more often if heavily used) and if you don't use your machine for a few years, be aware that old oil will dry out and combining with
dust and form a "clag" like glue (another reason for some sort of cover, even a teatowel !)

FINALLY, A WORD ON THREAD:
If it is worth spending the time, energy and money on making something that you would like to give lasting enjoyment......use quality thread, .......it may seem to cost a little more at the
time, but the results, ease of use and added longevity will be worth the extra, and as a bonus, your tension troubles may be fewer and further between, because there is a more consistent diameter with good thread, and less compensating to be done by your tension plates and less thread breaks !

bargainbox.com.au

Posted on Aug 02, 2009

  • 1 Answer

SOURCE: Sewing machine bobbin thread issues

i dont found the bobine

Posted on Nov 22, 2009

  • 1116 Answers

SOURCE: I get loops on top and/or bottom of fabric during

Top tension back to 4 and leave the bobbin tension as is.

Make sure you have a new needle for the type of fabric being sewn installed with the flat side to the back of the machine. A bent needle can sometimes go unnoticed.

Always thread the machine with the presser foot up and this will give proper tension to the stitch.

Check the manual to be sure you are threading correctly (always with the presser foot up) and that the bobbin thread is feeding in the correct direction from the bobbin spool and through the guides.

Take hold of the thread at the needle as you lower and raise the needle to pull up the bobbin thread. Take both thread ends under the presser foot and to the back of the machine.



Posted on Mar 11, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My brother pe-770 wont embroidery it makes a few strokes then binds up


check that the needle thread tension is adjusted properly as it indicates that it is too loose

Jan 20, 2017 | Brother Sewing Machines

1 Answer

Brother 780D will not feed thread through machine.


It is very important to have the bobbin case and the top tension both right. If the thread is getting stuck there is a problem. Always thread the top with the foot up. While threading make small pulls to make sure there isn't any places getting jammed. I've attached a rule document to help you to adjust the tension of the top and bottom.
25704155-u4uskpfede35yn0uis4lldpv-4-0.jpg

25704155-u4uskpfede35yn0uis4lldpv-4-2.jpg

May 20, 2015 | Brother PE-770 Embroidery Machine

1 Answer

Why does the bobbin keep showing up on top of the embroidery? I have changed the bobbin, I have rethreaded the top thread, I have changed the needle, I have cleaned the bobbin area. How else can the...


Loosen the top tension a little or tighten the bobbin tension ever so slightly. If that fails you can always color the bobbin threads with a magic marker the same color as the embroidery thread. You might go to Superior Thread's web site and try some prewound bobbins. They are worth their weight in gold. Dr. Bob knows all about all kinds of thread and is very good about answering questions. I think some of his Thread University videos are available too.

Jul 15, 2014 | Brother PE-770 Embroidery Machine

1 Answer

Troubleshooting Brother PE 770


Usually this is a tension problem. On mechanical machines, you'd adjust the dial, or possibly even the bobbin tension. But on a computer machine, I don't know how you set the upper tension, sorry to say.

Sometimes it can help to unthread and rethread a machine, and I don't know why it sometimes works, but it's a simple thing to try.

But if the upper tension isn't set correctly for the work being done or if the tension mechanism, however that's handled on a computer machine, isn't working correctly, this is what happens. Bird's nest is a good way to describe it.

Sometimes lint built up in the bobbin case can cause this symptom too, but I'd assume you keep this area clean. One reason I haven't yet invested in a computer machine is because problems like this often don't have such simple solutions as on the mechanical machines.

Jun 30, 2014 | Brother PE-770 Embroidery Machine

1 Answer

Brother cs-6000 will not sew, the top thread go through and tangles on back, and the bobbin thread is a straight line and can be easily pulled out, please help, trying to make kids school clothes


Hi:

Ok... so try to remember that loopy stuff on top means the bobbin tension is too loose (or the top tension is too tight...)

Loopy stuff on bottom, means the top tension is too loose. (or it's not threaded right)

Now. Get some scrap of the same material. Loosen that bobbin back to where it was. RETHREAD the top, with the foot in the UP position.

Place your scrap under the foot, and sew. still have problem? clip your threads and try again only this time hold the top and bottom threads off to the side as you begin to sew. How did that do?

Adjust the top tension to the point where you start seeing the bobbin thread come up in loops to the top... then back off until the disappear.

Now... be sure you have the correct thread and needle for your fabric. A lot of problem are caused by not having the proper needle and thread.

Jul 09, 2012 | Brother CS-6000

1 Answer

When im sowing the sting get all in nots at the bottem why


Hi. Your bobbin thread gets all knotty and loopy because the top thread tension is too loose. Read my tips on setting the tension.

Jul 20, 2010 | Brother XR-65t Mechanical Sewing Machine

1 Answer

My brother sewing machine is sewing with the bottom thread loopy and crooked. I have tried to adjust the tension, re-wound the bobbin, re-threaded the machine and still the bottom thread is not straight....


It is in your top threading, something is not right in the path. Always remember, it is the opposite of what you think. So, underside will mean that the top thread is the problem

Jul 19, 2010 | Brother Sewing Machines

2 Answers

Tension problem


Set the top tension as recommended by the mfg - this is usually between 3 - 6.

Now re-thread the machine with the presser foot up and see if this doesn't eliminated the loopy stitches.

What appears to be an issue with the bobbin may actually be the top thread was not seated into the tension during threading and the tension cannot control the flow of thread to the needle and you get a loopy stitch.

Keep the bobbin case clean as built-up lint can cause stitching problems.

Feb 20, 2010 | Brother LS-2125 Mechanical Sewing Machine

1 Answer

Brother PE-150V bobbin thread


For embroidery, and zig-zag, and because the needle makes side movements, it needs more needle thread.
So try to keep you needle thread not very tight,
and tight up your bobbin case tension more, so that the two threads meet under the meterial.

Apr 30, 2008 | Brother PE-150V Computerized Sewing...

Not finding what you are looking for?
Brother PE770 Computerized Sewing Machine Logo

1,486 people viewed this question

Ask a Question

Usually answered in minutes!

Top Brother Sewing Machines Experts

Tally Girl
Tally Girl

Level 3 Expert

1128 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18394 Answers

Irene Tulloch

Level 2 Expert

458 Answers

Are you a Brother Sewing Machine Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...