Question about Brother SE-270D Computerized Sewing Machine

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Thethread keepsnapping - Brother SE-270D Computerized Sewing Machine

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Posted on Apr 30, 2008

  • sue lynch Apr 30, 2008

    some times a burr in the needle will cause this. change needle. also old thread will cause this problem. try stitching with a different spool of thread

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The Pfaff 7570 Creative Designer is a computerized sewingand embroidery machine that has the ability to connect to the computer, andhave embroidery designs sent to the embroidery machine. The sewing andembroidery machine has many features, including hundreds of general sewingfunctions, a separate embroidery module, and on-screen editing features. TheCreative Designer 7570, manufactured in the 1990s, was the first sewing andembroidery combination machine ever made by Pfaff.

1. Usingthe Sewing Machine
1 Turn on your sewing machine using the "On"button located just below the turn wheel on the right side of the machine.Thread your Pfaff 7570. Note that Pfaff sewing machines thread from left toright, not right to left like other sewing machines. The upper tension discsshould be raised at their highest position while threading, and the presserfoot should be raised up until you thread the needle. Drop the presser footright before you thread the needle. The prevents thread problems during use. 2 Insert a full bobbin and retrieve the bobbin threadthrough the thread plate. Raise your sewing foot and needle to its highestposition; hold the needle thread taught with your left hand, lower the needleinto the thread plate using your right hand, and then raise the needle. As youraise the needle, the needle thread will catch the bobbin thread, and pull itup. There should be a loop of thread intertwined with the needle thread. Usetweezers, your finger, or a straight pin to retrieve the bobbin thread that isvisible through the thread plate, and pull it through the plate. 3 Place the fabric under the presser foot, and drop thepresser foot. Choose the stitch you want to use from the top stitch display,right above the top thread feed. Press the '0-9" button located on thesewing machine's front panel, and a display screen will come up. Input thethread number, and press the 'OK' button located on the sewing machine's frontpanel. The stitch will display, and you are ready to sew. Repeat Step 3 foreach stitch you want to use.

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Thanks for using fixya

Jul 31, 2011 | PfaFF Creative 7570

1 Answer

I lost my book...


This image should Fixya !!

Also scroll down further to see a guide to tension setting.

4fbc7b7.jpg

Please TRY the solution BEFORE giving your considered rating.


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

Thissolution is for tension problems...if you cannot form any sort ofstitch, the issue is quite different, so please let me know if you needa 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 sideor 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:
Ifthe looping threads are on the underside as you sew, it is the toptension. Top tension ought to be between 4 & 6 (this variation toallow 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:
Makesure that when you thread the machine the presser foot is up so thethread goes between the discs and not to one side, top tension between4 and 6, and that you have threaded through all the guides, includingthe last one, usually on the needle arm, just above the needle clamp.

Itmay be there is lint trapped between the discs, this will keep themslightly apart and reduce the actual tension, sometimes dramatically.

Iftensions appear correct, and the thread is definitely in the channelbetween the discs, but still too loose and looping, try raising presserfoot and remove your thread.

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

In the worstcases, gentle use of a needle to pick & remove the jam may benecessary, but be very gentle and make sure the tension is set at Zeroand 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:
Farless common, but if the loose threads are on the top, it is bobbintension that is loose, it too may have lint in the spring and be givinga "false" tension.

I would not recommend fiddling with bobbintension without good reason, it may end up with missing small screwsand 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....

justtake it out and clean the bobbin case and the fixed metal hook racewith a small brush to remove lint. If there is a significant amount oflint, use a vacuum and small brush to get the worst.

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

If itseems likely that you ......really ....do .....actually .....need.....to adjust the bobbin case, first check there is no lint trapped inthe 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, sobeware....it is not a tragedy to undo the whole lot and clean it, butvery gingerly and lay the bits out in sequence and orientation, or yourisk tearing your hair out !

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

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

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

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

OTHER ISSUES:
Ifyou live near the ocean as we do, salt air can play havoc withmetalwork inside and out, so to help minimise this, keep a few smallpackets 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.

Budgetfor a proper full service every couple of years (more often if heavilyused) and if you don't use your machine for a few years, be aware thatold 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:
Ifit is worth spending the time, energy and money on making somethingthat you would like to give lasting enjoyment......use quality thread,.......it may seem to cost a little more at the
time, but theresults, ease of use and added longevity will be worth the extra, andas a bonus, your tension troubles may be fewer and further between,because there is a more consistent diameter with good thread, and lesscompensating to be done by your tension plates and less thread breaks !

bargainbox.com.au

Jul 23, 2008 | Brother XL-5130 Mechanical Sewing Machine

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