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Posted

Actually, both Jeff and I have been working on it for a week and STILL haven't been able to make it all work.  I wish there was a video that would show us how to set it all right.

  • 2 years later...
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Posted (edited)
  On 11/27/2016 at 8:43 AM, Constabulary said:

The bearing screw just holds the shuttle driving lever, there is no eccentric on it for adjusting the timing. The screw has to be tighten.

My guess was that the cam pulley at the right end of the machine which drives the arm up and down needs a 180° rotation.

May I ask if you have taken apart the machine for cleaning and probably have reassembled some parts (cams and / or gearbox) incorrectly? There are 3 cams on the main shaft and they all have to be in correct position otherwise the machine does not work. The small cam on the left side (feed motion cam wheel) is usually has a mark that needs to align with the mark on the shaft. The other 2 do not have marks but they have tapered pins which usually just fit from one side and you usually can see the "foot prints" of the set screw on the shaft.

Still a guess form the distance I don´t claim that I´m right with this but I still think the cam pulley needs a 180° rotation. So I would drive out the pin (remember - its tapered), loosen the set screw and turn the pulley by 180° and test again. Pulley might be tight on the shaft so you probably need a gear puller and clean the shaft and inside of the pulley with some 320 grit sand paper before you reassemble it.

EDIT:

This is needle up and needle down at my machine - notice the position of the shuttle carrier - it´s just the opposite as on your machine so I´m sure your cam pulley needs the mentioned 180° rotation.

 

 

IMG_7463.JPGIMG_7464.JPG

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Thank You . these two Pic's. saved me and ( you cant see me do it ) , but after a couple hours of mumbling cursing and greasy fingers , I am tipping a single malt in a chilled Waterford with also giving you a salute  .

Tonight I had the bottom cover off gear drive bars and machine slipped off my blocks when tipped back . Drive bar fell out as the Hand wheel turned and gear timing went out in relation to needle stroke . To say the least, it was a Large PIA . But these Pic's I found helped bigtime .

.

Edited by nylonRigging
  • 3 years later...
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Posted

Hi stumpy here . I found this thread very interesting. I have a similar problem,on mine the shuttle carrier is in the right place. Timing is correct dut still won't catch the bobbin thread. I saw on a video that it if the point of the bobbin carrier is blunt then it will not pick up the thread and can even cause dropped stitches . Has anybody heard of this .

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Posted

Just a quick note the video I saw was by Harry rogers

 

Posted
  On 6/6/2023 at 6:20 PM, stumpy said:

Hi stumpy here . I found this thread very interesting. I have a similar problem,on mine the shuttle carrier is in the right place. Timing is correct dut still won't catch the bobbin thread. I saw on a video that it if the point of the bobbin carrier is blunt then it will not pick up the thread and can even cause dropped stitches . Has anybody heard of this .

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I hate to tell you ,your either overlooking something OR it is out of time,because if it was in time it would be sewing.Once in a while the pin on the top cam(belt pulley breaks)  the end of the screw on the pinion gear can also break.As you turn the machine the needle bar goes down ,starts to come up ,goes & then when it goes up the 2nd time is when the point of the shuttle should be above the eye of the needle.

 

 

Bob Kovar
Toledo Industrial Sewing Machine Sales Ltd.
3631 Marine Rd
Toledo,Ohio 43609
1-866-362-7397

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Posted
  On 6/6/2023 at 6:20 PM, stumpy said:

Hi stumpy here . I found this thread very interesting. I have a similar problem. On mine the shuttle carrier is in the right place. Timing is correct but still won't catch the bobbin thread. I saw on a video that it if the point of the bobbin carrier is blunt then it will not pick up the thread and can even cause dropped stitches . Has anybody heard of this .

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Make sure that your needle is the correct system. This is any of these: 29x3, 29x4, 135x16, or 135x17. Then, insert the needle all the way up inside the needle clamp and align it so that the ribbed side faces due left and the scarfed side faces due right.

Lower the needle and inspect the paddle shaped spring above the clamp. It must exert good pressure on the thread coming down the hole in the needle bar. If that spring is twisted, broken, or weak, the loop will dissolve before the hook can pick it off the needle.

See if there is a lot of slop in the shuttle gears. If there is, you will need to time it advanced to compensate for the wasted movement of the drive gears.

Posted IMHO, by Wiz

My current crop of sewing machines:

Cowboy CB4500, Singer 107w3, Singer 139w109, Singer 168G101, Singer 29k71, Singer 31-15, Singer 111w103, Singer 211G156, Adler 30-7 on power stand, Techsew 2700, Fortuna power skiver and a Pfaff 4 thread 2 needle serger.

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Posted

Thanks wizcrafts of the info. Have now solved the problem. There was a broken peace of needle in the needle clamp that was named in .managed to remove it and now works lovely.thanks every one for your help it's strange how something so simple can cause so much trouble.now I can get on and make my medieval costume for my daughter's wedding. Thanks again every one.

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