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Necchi 534fb tension adjustment - Necchi 4575 Mechanical Sewing Machine

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6ya6ya

6ya staff

  • 2 Answers

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Posted on Jan 02, 2017

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Anonymous

  • 8 Answers

SOURCE: necchi 534FB

I solved this problem for a friend,!. the needle was in the wrong way and
2 the bobbin case was not properly seated be sure you hear the 'click 'when
reinserting the bobbin case...hope this is helpful Velz

Posted on Jul 18, 2009

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bargainbox

Hassy

  • 1388 Answers

SOURCE: necchi 357 L upper tension will not adjust, have

Zero will be loose.....it is Zero tension ! Try 4 or 5 sor most purposes.
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 Sep 06, 2009

paj42

  • 1116 Answers

SOURCE: necchi 511..how do you adjust thread tension on

Before the thread goes though the uptake lever, it goes though the tension (a round "knob" with numbers).

When threading the machine, lift the presser foot. This opens the tension control so the thread can enter and then when the foot is down and you begin to sew, the tension setting will determine how much thread should feed to the needle.

The setting is usually around 4. However, if this is an older machine that has been used a lot and serviced a little, the tension may not work as it should.

Try different settings and if you cannot get a proper stitch, you will need to determine if the machine should be serviced or if you should purchase a new one - service and parts can be 1/2 the price of a decent, new machine.

Posted on Feb 28, 2010

Testimonial: "Machine is now sewing properly. Thank you."

SOURCE: I just bought a used necchi model # 534fb and I

try

sewingpartsonline.com

Posted on Nov 03, 2010

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1 Answer

Necci 752 manual is needed.problem with threading and stitching


Hm, I'm not able to locate a manual but may be able to offer some suggestions.

Remove the top thread from the machine.
AVOID OLD OR BARGAIN BIN THREAD!
Use the same thread in top and bobbin.
Be sure to use a brand new needle--needs to be compatible with the thread and fabric of the project..
ALWAYS RAISE the presser foot and rethread from the beginning.
Set the top tension to the midway point.
Verify the bobbin is loaded and threaded correctly and it turns the correct direction.
Pull the bobbin thread up through the fabric before taking the first stitch. It also helps to hold both thread tails in your left hand when taking the first stitches.
Test your machine and tweak the top tension until the top and bobbin threads meet in the middle of the fabric. (Increased top tension will pull the bobbin thread up. Decreased top tension will allow the bobbin thread to pull the top thread down.)

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My Necchi sewing machine-model #534FB will not sew.


perhaps the hand wheel clutch need tightened .

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I have a Necchi Omega 6147. How can I adjust the drop-in bobbin to use upholstery thread to sew heavy fabrics or leather?


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...

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Do you mean the Tension adjustment knob? If that is the part you need then try this site: http://vintagesewingmachineparts.com/necchi-535-fa-tension-adjustment-sewing-machine-part-3/ .

There are also several sites that have parts for sewing machines but do not list their complete inventory online. To check if they have your part, e-mail them with a complete description of the part and the model. For example, try http://www.a1sewingmachine.com/parts.html .

I hope this helps.

Cindy Wells

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1 Answer

I am sewing on a Necchi 534FB and have no manual, is it possible to get a manual?


Hi. I found your manual at http://pages.sewing-machine-manuals.com/173/InventoryPage/1797256/1.html


Happy Sewing!

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Necchi 534FB


I solved this problem for a friend,!. the needle was in the wrong way and
2 the bobbin case was not properly seated be sure you hear the 'click 'when
reinserting the bobbin case...hope this is helpful Velz

May 01, 2008 | Necchi 3101 Mechanical Sewing Machine

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