Seiko SK-8 Feed Dog Timing

[Jwbstr]

Hello everybody, by way of introduction I am quite new to walking foot sewing machines and I would also say sewing machines in general. I’ve created an issue with my machine, I was trying to change the stitch length on my machine and in doing so l have put out the timing of the outside presser foot and the feed dog. Is it possible that I can fix this myself or should I just bite the bullet and send the machine to the professionals  

Regards, Joel. 

[DieselTech]

There is some great guys & gals on this site that can probably walk you thru setting your timing. 

 

[Jwbstr]

Thanks DieselTech, I’ll hold off on sending it to the shop for now. 

[Andy132]

Hi, I'm probably too late to help you, but in the interest of general knowledge and contributing to the forum, I can offer some advice from my own experience.

I have a Singer 132k6 which looks very similar to your Seiko,based on some photos I dragged up.

About 12 months ago,I had an identical problem and it was doing my head in trying to resolve it.

I kept playing with the feedbdog adjustment linkages under neath the machine, both the height linkage andbthe travel linkage.

But the issue wasn't with eitherbof those,it was the timing of the feed dog with the presser foot.

Eventually,the penny dropoed and I tried loosening the three screws that secure the left hand side coupling on the main shaft that is part of the stitch length assembly.

I then hel the stich regulator lever in and slowly rotated the handwheel about 1/4 of a turn.

Nipped up the screws then checked the timing again.

Immediately I could see an improvement,from then on,it was just a matter of fine tuning the position of the coupling until I found the sweet spot.

I had been trying to sew dome very thick items with ridges and things that were causing the presser to jam just prior,so I believe it must have allowed the shaft to move in the coupling,even though the screws were all tight.

After getting the coupling back in the correct location,I centre punched a couple of dots into the shaft and coupling so I have a future reference point to go by.

You may still need to readjust the two linkages underneath afterwards to get the feed dog operation at its optimal height and distance.

The distance of travel adjustment will need to be collaborated with the stich regulator to achieve adjustment of stitch length later. From memory,I set thestich regulator at it's longest stitch length and adjusted the travel distance of the feed dog to suit.

When set to minimal stitch length after all adjustments were done, everything worked as it should.

 

I hope this helps,I will put up some photos.

Andy.

[Andy132]

Hi, I'm probably too late to help you, but in the interest of general knowledge and contributing to the forum, I can offer some advice from my own experience.

I have a Singer 132k6 which looks very similar to your Seiko,based on some photos I dragged up.

About 12 months ago,I had an identical problem and it was doing my head in trying to resolve it.

I kept playing with the feedbdog adjustment linkages under neath the machine, both the height linkage andbthe travel linkage.

But the issue wasn't with eitherbof those,it was the timing of the feed dog with the presser foot.

Eventually,the penny dropoed and I tried loosening the three screws that secure the left hand side coupling on the main shaft that is part of the stitch length assembly.

I then hel the stich regulator lever in and slowly rotated the handwheel about 1/4 of a turn.

Nipped up the screws then checked the timing again.

Immediately I could see an improvement,from then on,it was just a matter of fine tuning the position of the coupling until I found the sweet spot.

I had been trying to sew dome very thick items with ridges and things that were causing the presser to jam just prior,so I believe it must have allowed the shaft to move in the coupling,even though the screws were all tight.

After getting the coupling back in the correct location,I centre punched a couple of dots into the shaft and coupling so I have a future reference point to go by.

You may still need to readjust the two linkages underneath afterwards to get the feed dog operation at its optimal height and distance.

The distance of travel adjustment will need to be collaborated with the stich regulator to achieve adjustment of stitch length later. From memory,I set thestich regulator at it's longest stitch length and adjusted the travel distance of the feed dog to suit.

When set to minimal stitch length after all adjustments were done, everything worked as it should.

 

I hope this helps,I will put up some photos.

Andy.

I don't know why it double posted?

The photo with the screwdriver shows the location of the three screws on the coupling you need to adjust.