Help with a Juki 562

[kgg]

From what I can gather the Singer part # 240556 and the Juki part called vertical axis sewing hook assembly #B1830-055-0A0 should be interchangeable. If you check " hensewfiles.com/PDF/Juki LU-562.pdf " section 3. Sewing Hook & Shaft Components the one on the left is a 562 assembly while the one on the right is a 563. These drawings are really clear and may help you with checking how things look and go together. Like davemac suggested it could be sleeves not seated properly.

kgg

 

[freeturns]

Oh the craigslist woahs'... 

Can anyone take and post some photos for me? details of the bobbin assembly!? I'd be eternally grateful and send you a copy of my favorite book!!? 

 

6 hours ago, davemac2 said:

Also check to make sure the upper hook shaft bearing sleeve (#6) and the lower one (#26) are seated fully into its mounting.  There is a set screw there I think that secures them into the frame.  See the diagram.

 

Does anyone know how a brass bushing could be moved without a drift? I'll check the bushings tonight, do you know if these seat flush into the casting?

 

3 hours ago, kgg said:

From what I can gather the Singer part # 240556 and the Juki part called vertical axis sewing hook assembly #B1830-055-0A0 should be interchangeable. If you check " hensewfiles.com/PDF/Juki LU-562.pdf " section 3. Sewing Hook & Shaft Components the one on the left is a 562 assembly while the one on the right is a 563. These drawings are really clear and may help you with checking how things look and go together. Like davemac suggested it could be sleeves not seated properly.

kgg

 

Thanks, thats what i was gathering as well.  The hook assembly that came with the machine is missing the tension spring and one screw, instead of trying to the whole thing (+$125 ) i just bought a new bobbin basket.  

Thanks for the attention and ya'll's help, i appreciate it!!

 

[freeturns]

Here is the area of question. To me, albeit not a machine mechanic, but good with cars and other motors etc. these brass bushings seem to be in the right place. It'd be difficult to think how these would be out of place. 

I attached a few photos.   

[kgg]

My thought process of elimination for the height problem would be to move the main drive gear in the second photo as far right as possible so it would make no contact with the hook assembly. Then slide the hook assembly back in place. This would be too see if the hook assembly will seat down lower. If it did seat lower then maybe it is just the placement of where / how the main drive gear contacts the hook assembly gear and its placement on the hook assembly shaft. If the hook assembly does not seat lower then I think the cause would probably be related to the top bushing being not seated deep enough, an incorrect bushing or something else preventing the assembly from going lower down.  

[kgg]

As a note the rotary hook for the Juki 562 would look like:

https://www.ebay.ca/i/162872521444?chn=ps&norover=1&mkevt=1&mkrid=706-89093-2056-0&mkcid=2&itemid=162872521444&targetid=607627058052&device=c&adtype=pla&googleloc=9000651&poi=&campaignid=1669215008&adgroupid=63013116685&rlsatarget=pla-607627058052&abcId=1063836&merchantid=116972197&gclid=EAIaIQobChMInJOGuNT14gIV1MDICh15ogX5EAYYAiABEgIhHfD_BwE

As a note the rotary hook for the Juki 563 would look like:

https://www.ebay.ca/i/401426223821?chn=ps&norover=1&mkevt=1&mkrid=706-89093-2056-0&mkcid=2&itemid=401426223821&targetid=607627058052&device=c&adtype=pla&googleloc=9000651&poi=&campaignid=1669215008&adgroupid=63013116685&rlsatarget=pla-607627058052&abcId=1063836&merchantid=116972197&gclid=EAIaIQobChMI0JOfrNT14gIVB4_ICh2ZSQAxEAYYAyABEgLAiPD_BwE

kgg

[davemac2]

Ya those bushings look ok, but the upper could be slightly off.  Someone would need to compare against another lu562.  So that leaves either the hook is the wrong one (doubtful) or the #5 bobbin case opening lever link is not seating fully onto the eccentric of the hook shaft, or it is the wrong part maybe and is too thick?  What happens if you don't put that link onto the hook shaft and just seat the hook shaft fully against the upper bushing?  Does it meet the slide plate clearance then?  The other thing is that with the bolt (#16) and washer (#17) that secures the hook frame to the machine frame, you could add shim washer above #15 in the diagram to drop the whole hook assembly a little down below the top slide plate to get your clearance, but then that might throw other things off such as the proper gear meshing on the hook drive.

[freeturns]

20 hours ago, davemac2 said:

Ya those bushings look ok, but the upper could be slightly off.  Someone would need to compare against another lu562.  So that leaves either the hook is the wrong one (doubtful) or the #5 bobbin case opening lever link is not seating fully onto the eccentric of the hook shaft, or it is the wrong part maybe and is too thick?  What happens if you don't put that link onto the hook shaft and just seat the hook shaft fully against the upper bushing?  Does it meet the slide plate clearance then?  The other thing is that with the bolt (#16) and washer (#17) that secures the hook frame to the machine frame, you could add shim washer above #15 in the diagram to drop the whole hook assembly a little down below the top slide plate to get your clearance, but then that might throw other things off such as the proper gear meshing on the hook drive.

Thanks for the suggestions Dave! 

The bobbin shaft assembly without the #5 lever link seats in the same position as with the link installed. I was thinking about shimming the bottom too! However, i'm not sure how that will change the gear mesh interface. I have a new bobbin case arriving today. Hopefully that will be it! 

Thanks! 

[freeturns]

An update: 

Still haven't received my parts... I'll repost when i get them installed. 

[freeturns]

Ok! 

Purchased a few items, keeping me right close to my budget.  Ordered a new hook assembly, slid it in and not to my surprise makes contact with the right slide plate.  Still scratching my head on this one.  I think tonight i'll try out dave's suggestion and place the shim (4+ stamped on it) on the other side and re-time and see how we look.  Thanks everyone for your suggestions, I'll keep tabs if anyone has any other interesting ideas! 

 

Thanks!!!!

[Gymnast]

This is a puzzle. I suppose, that when you find the problem it is quite simple. But now it is hard, and it has been so for some time.

I just like to ask this question. What prevents the new hook assembly to go further down as it should? Are you able to put in small strips of paper or thread to feel where this hook assembly is stopped in its movement downwards?