Members Coeta Posted 10 hours ago Author Members Report Posted 10 hours ago Well it's time again to resurrect the old baby .......3 years down the line and it was never used, a new project is on hand, it looks like if i need to start from the beginning setting it up, what I found problematic is with the tension of the thread something is not correct as it brakes the thread Turning the handwheel to check the timing the hook is passing the needle and is picking up the loop when the needle goes up, turning the handwheel further so that that the hook comes around a second time the thread still has the loop formed at the bottom of the thread plate this the thread has not been tensioned by the tensioner while the needle goes up, I have adjusted the spring so that its very tight but still not working, I might have to struggle a while before I would get it to work again. Any tips as this was used 3 years ago.... Quote
Moderator Wizcrafts Posted 6 hours ago Moderator Report Posted 6 hours ago 3 hours ago, Coeta said: Turning the handwheel to check the timing the hook is passing the needle and is picking up the loop when the needle goes up, turning the handwheel further so that that the hook comes around a second time the thread still has the loop formed at the bottom of the thread plate this the thread has not been tensioned by the tensioner while the needle goes up, If I understand you correctly, You are saying that the top thread loop that forms on the right side of the needle is still present as the needle moves up and the shuttle is making its second rotation. If this is the case, I think that you have forgotten to pass the top thread through the hole in the take-up lever! The path is to loop around the three hole pre-tensioner bar, then around the center of the top tension disks, then out the bottom of the disks to the check spring assembly - where you pull up as you wrap the thread around the spring and its channel until it snaps in place. From the check spring, you feed the thread up through a thread guide to the take-up lever. Pass the thread through the eye in the lever from right to left, then down through the remaining guides to the guide ring on the bottom of the needle bar. From there you thread the needle from left to right, making sure that the ribbed side is on the left and the cutout scarf side is on the right. Failure to thread the check spring correctly may also cause this problem as well as cutting the top thread as the needle descends. Quote 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, Fortuna power skiver and a Pfaff 4 thread 2 needle serger.
Members Coeta Posted 1 hour ago Author Members Report Posted 1 hour ago 4 hours ago, Wizcrafts said: If I understand you correctly, You are saying that the top thread loop that forms on the right side of the needle is still present as the needle moves up and the shuttle is making its second rotation. If this is the case, I think that you have forgotten to pass the top thread through the hole in the take-up lever! The path is to loop around the three hole pre-tensioner bar, then around the center of the top tension disks, then out the bottom of the disks to the check spring assembly - where you pull up as you wrap the thread around the spring and its channel until it snaps in place. From the check spring, you feed the thread up through a thread guide to the take-up lever. Pass the thread through the eye in the lever from right to left, then down through the remaining guides to the guide ring on the bottom of the needle bar. From there you thread the needle from left to right, making sure that the ribbed side is on the left and the cutout scarf side is on the right. Failure to thread the check spring correctly may also cause this problem as well as cutting the top thread as the needle descends. thanx for the detailed response I am absolutely sure I have thread it correctly, I think the issue is with the take up spring just after it goes through the tension discs , I dont know how stiff it must be, with it been very stiff it still is not enough to pull the thread back through the material to straighten out the loop on the bottom of throat . I have used the following link as a guide but as said the tension is much stiffer https://www.youtube.com/watch?v=uQ0i2f-q0i4&t=185s Quote
Members Coeta Posted 29 minutes ago Author Members Report Posted 29 minutes ago I did found this and will apply as stated.. Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.