Looking for cylinder arm for leatherbag making. Necchi 840-100

[dikman]

Sounds like the needle bar needs re-adjusting.

[luxuryluke]

15 hours ago, dikman said:

Sounds like the needle bar needs re-adjusting.

That’s a great point. This could be the next step, for sure. I’m certainly familiarizing myself with the mechanics of the machine. 

Thanks!

[luxuryluke]

So, after another semi-thorough cleaning, disassembly, oiling, reassembly, and inspection of the mechanics in the needlebar  and bobbin case/hook areas, I did determine that the needle bar could be adjusted to fit the standard walking foot needle size of 135x16L on this machine. After this, I've noticed:

1. At top dead center, the needlebar does top out by kissing the top of the case, so it really can't be raised anymore.
2. At bottom dead center, it doesn't hit the center of the hook assembly inside the needle gap.
3. The needle is now closely aligned to have the hook enter the scarf of the needle at the right timing and sews well with no noise or breakages

The result is that the effective stitch length is not near what it was before with the previously installed needle by the previous owner. At the longest stitch setting it went from almost 5 stitches per inch up to around 6+ stitches per inch.

I'm sure it's the geometry of the changes a new needle size made to the setup, but I'm not knowledgeable enough to know whether the new setup is better or not for the machine. I do know that this likely isn't the correct needle for this machine, but it's working really well at this point (badump).

Below you'll see that the booklet I have specs it as a 134 needle system. Thoughts?

 

[luxuryluke]

Bump.

I removed the 136X16 needles that were too long and put the original back in. Back in business. 
But I can’t seem to find where to buy this needle. This is most likely a Pfaff 335 clone/variant. 
Any other thoughts out there?

[RockyAussie]

2 hours ago, luxuryluke said:

Bump.

I removed the 136X16 needles that were too long and put the original back in. Back in business. 
But I can’t seem to find where to buy this needle. This is most likely a Pfaff 335 clone/variant. 
Any other thoughts out there?

Not sure if this will help but you may be able to measure the needle and ask on here - https://www.schmetzneedles.com/needle-facts-how-to-read-the-needle-package-2/

[SARK9]

11 hours ago, luxuryluke said:

I removed the 136X16 needles that were too long and put the original back in. Back in business. 
But I can’t seem to find where to buy this needle. This is most likely a Pfaff 335 clone/variant. 
Any other thoughts out there?

The 134 system is a common needle I use on a couple of fabric-type machines....The "R" designation indicates ROUND POINT style. It comes in other points for leather etc. My Singer 20U33 and Pfaff 481 both use this system. Some of the other confusing systems can be seen in the photo attached:

-DC

[luxuryluke]

Thank you @RockyAussie and @SARK9!

I think I understand it now. I found some Groz Beckert needles of type 134-35 LR , size 21 (or Metrix 130) for my T135 size poly thread. It says it fits Adler and Pfaff machines of a wide range including the 335 and 1245 pfaffs. Let’s hope this works. 
Now to wait for shipping. 

Edited June 2, 2020 by luxuryluke
Updated w photo

[modanistil]

Hi was looking at the same machine but for much less. Have you done any projects with it? Is it a true triple feed? Can you use tex 500 tread with it?

[ryano]

32 minutes ago, modanistil said:

Hi was looking at the same machine but for much less. Have you done any projects with it? Is it a true triple feed? Can you use tex 500 tread with it?

Tex 500 is way to heavy for this machine, 134 is about the heaviest thread. Here is a site that will explain industrial thread:

https://www.servicethread.com/blog/industrial-sewing-thread-sizes-explained

 

Edited January 4, 2021 by ryano

[modanistil]

32 minutes ago, ryano said:

Tex 500 is way to heavy for this machine, 134 is about the heaviest thread. Here is a site that will explain industrial thread:

https://www.servicethread.com/blog/industrial-sewing-thread-sizes-explained

 

So woud it go with a tex 380? Amann serabraid as reference.Sorry not smart enough for this.