Question about Necchi 6015 Mechanical Sewing Machine

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How to adjust bobbin tension 6015 necchi - Necchi 6015 Mechanical Sewing Machine

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: bobbin case on my 524fb necchi has come apart

Almost all Necchi use a class 15 bobbin & bobbin case, a new case should cost around 7 to 10 dollars!

Dwayne

Posted on Mar 14, 2009

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bargainbox
  • 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

miket756
  • 2702 Answers

SOURCE: NECCHI, model 4795. Thread bunches up at bobbin.

it sounds like the thred tenshion is to loos or the timing has sliped a little and its off a bit this can also happen with wear on the gears or just a loos fixing letting the timing slip back a bit,

Posted on Nov 20, 2009

  • 96 Answers

SOURCE: Manual for New Home Special Edition Necchi 6015

google manufacturer and email request

Posted on Dec 13, 2009

  • 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

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1 Answer

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


You would need to adjust the tension screw so the tension is looser than usual. However, remember to mark the setting BEFORE making any adjustments so you will know where to return the original setting.

Bobbin Tension How and Why Tension is Adjusted

Understanding Bobbin Tension

Understanding Thread Tension Threads

...

Feb 10, 2017 | Necchi Sewing Machines

1 Answer

I have a Necchi sewing machine The bobbin thread is way loose. What should I do


Start out with a brand new needle.

Be sure the machine is threaded properly. Also, the presser foot MUST be raised before threading so the thread will seat properly in the tension disk.

The standard setting for the upper tension is the midway point between the high and low number.

If the bobbin thread is still way too loose, you can try adjusting (tightening) the bobbin case tension. If that does not fix the problem, you can probably try purchasing a new bobbin case for your machine as the old one may be broken or worn.

adjust bobbin tension Google Search

Jan 27, 2016 | Necchi Sewing Machines

1 Answer

Necchi sewing maching adjustments


try a new needle
rethread the machine top and bobbin
try adjusting the top thread tension
make sure the bobbin is inserted into the bobbin case correctly

Mar 23, 2015 | Necchi Sewing Machines

1 Answer

The top thread is to loose and sometimes it skips a stitch


Increase the upper thread tension, or loosen the bobbin tension to balance them. Put in a new needle too. Check that the needle is in correctly.

Sep 19, 2014 | Necchi 6015 Mechanical Sewing Machine

1 Answer

Bobbin thread is straight across under fabric when it is stitched but it is attached to top thread. How can I correct this?


Reduce the bobbin thread tension. It is done by loosening the little screw on the bobbin case. It is a sensitive adjustment so turn about 1/8 of a turn at a time.

Mar 31, 2011 | Necchi 6015 Mechanical Sewing Machine

1 Answer

I have an omega 3730m sewing machine and i find that when i am sewing, the stitching underneath balls up nad is not tight. i tried to adjust the tension but nothing seems to work. any suggestions?


I find that re-threading both top and bottom threads fixes the problem. Sometimes the thread has not gone through the tension springs properly. try a new needle too.

Dec 08, 2010 | Necchi 6015 Mechanical Sewing Machine

1 Answer

Stitches looping up on bobbin side of fabric


you may have to adjust the tension of the Bobbin. There usually is a screw to adjust this on the bobbin housing(the part that holds the bobbin). Try tightening the tension by turning this screw clockwise a little bit. It may work for you. Also clean any debris from the bobbin compartment which may cause this problem also. Hope this helps..WF

Aug 21, 2010 | Necchi Sewing Machines

1 Answer

Top thread too loose, brings up bobbin thread. Tried to adjust, but cant get it right. Have manuel, but cannot locate it currently I have The Omega model


Hi. If the bobbin thread is coming up on top, then the upper tension is too tight. Try loosening it.

Hi. The best way to adjust your tension is to use good-quality thread, a size 12 needle, and different color threads in the bobbin and on top. That way, it's easier to see which thread is loose. Sew a few inches, check, and adjust (make sure the pressure foot is DOWN). Stitch a few more inches, recheck, and adjust some more. Just move the adjustment knob a little bit each time.

You might also want to use a bit of unwaxed dental floss and floss the tension disks. That helps get rid of any old lint and pieces of thread that build up in there.

As a last resort, you might need to adjust your bobbin tension. There is a very small screw on the bobbin case that tightens/loosens the spring/lever. If you need to adjust it, only move the screw a tiny bit. But, like I said, this is only a last resort--almost all adjustments can be done by adjusting the upper tension.

Hope this helps!

Robbie

Aug 12, 2010 | Necchi 6015 Mechanical Sewing Machine

1 Answer

Unable to get bobbin to pick up thread from needle.


Check the thread coming out from the bobbins maybe on reverse side,also check the bobbins tension adjust it there is a small adjusting screw.Check also the needle alignment lastly check the upper tension from the tension regulator knob,tension adjustment is depend on the fabrics that you sew.

Mar 06, 2009 | Necchi 3102 Mechanical Sewing Machine

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