Bobin Hook Splitting Thread

[farmersracer]

Hello.

Just bought a dürkopp 239-525

Works realy well. But after a needle breakage the bobin hook has started to split the thread. How do I adjust the distanse between the hook and the needle? I have solved this by bending the needle a little - but its not the right way to do things:)

Thanks

Lars G.

[farmersracer]

Well...

I seem to have pushed the machine to far. It is sweing in its limits. I turned the fabrics and leather uppside down - and the mashine made a perfect stitch.

But when I turn it over again the thread splitting starts again.

I got a bigger singer 29k to do this job. But I am still intrested in the possibility to adjust the hook - needle distance.

thanks.

[Randy Cornelius]

check for a burr on the hook

[farmersracer]

Ok.

I have checked - no damage to the hook. The broken needle did hit the feeding foot. I have sewn for one hour now in thinner materials and the machine works fine with this stack of materials:

from top: 4mm leather + 18oz waxed canvas + 1,5mm rubber.

perfect result.

If I move up one layer of canvas the splitting starts. This stack is though in a different order:

from top: 18oz canvas + 1,5mm rubber + 18oz canvas + 4mm leather.

It seems that the thread loop that the hook shall cach is to tight - resulting in missing one or two fibres.

I have worked for a few months on a singer 29k and when the materials get thicker it offers a way to adjust the take up.

Is there a way to feed more material to the thread loop on a Dürkopp? or shall I try a bigger needle and less tention?

Using a 120 needle and a serafil 15 thread.

Thanks

[Jimbob]

Burr on feed doog....

[CowboyBob]

Needlebar could of gotten pushed up when the needle broke,loosen needle screw & lower needle a couple mm & see if it gets better.

If it does you will need to lower needlebar.

[farmersracer]

Thanks - I will check the feed doog and needle bar tomorrow.

Any opinion on the thickness of the material? Is this to thick for this machine?

from top: 18oz canvas + 1,5mm rubber + 18oz canvas + 4mm leather.

Thanks

[Northmount]

Check you needle is in the right direction. The scarf (thinned spot) should be on the hook side.

Tom

[farmersracer]

Hi

I have looked into the needle bar issuu and it looks like Bob gets the prize:) The hook passed just above the needle eye. I have lowered the needle so that the hook passes just in the middle of the slot in the needle. Has worked fine even in the thick materials.

Thanks all for teaching me what to look for.

Best regards

Lars G.

By the way... check into http://www.farmersracer.com

this is the design I'm working on: