Members Ken Nelson Posted April 5, 2016 Author Members Report Posted April 5, 2016 I am wondering if the problem is the shuttle driver and not the hook. Ken Quote
Uwe Posted April 5, 2016 Report Posted April 5, 2016 (edited) You're on the third failed stitch in this picture. You're doomed after the first time the thread does not slip past that point. In that position the thread should be slipping though the gap at the hooks butt at the TOP of the picture. If it gets stuck here, it just pulls more thread off the spool and the take-up lever doesn't stand a chance to pull the knot tight. My little video: shows how the thread (415 in this video) should slip through the gaps if hook and driver match properly (Adler 205-370). Edited April 5, 2016 by Uwe Quote Uwe (pronounced "OOH-vuh" ) Links: Videos
Members Ken Nelson Posted April 5, 2016 Author Members Report Posted April 5, 2016 I am well aware. Quote
Uwe Posted April 5, 2016 Report Posted April 5, 2016 Perhaps your driver is indeed the culprit, then. The attached picture of a 441 style machine shows a driver that fills the cylinder space more and touches the shuttle in a different spot. Since your machine is apparently neither an Adler 205 nor a Juki 441 clone, you may have to track down a parts manual for your machine to figure out what part is right or wrong. Perhaps your machine was never designed to handle the larger thread sizes. Do you have spec sheet for it? Your current hook is a Hirose brand HAD-204 series hook, from the looks of it. A recent post in another thread also indicated that hooks are only interchangeable in one direction between Adler and Juki style machines ("fits" vs. " fits and actually works"). Since your machine is not firmly planted In either category, who knows what will work or not! Report back when you find out. Quote Uwe (pronounced "OOH-vuh" ) Links: Videos
Members Ken Nelson Posted April 6, 2016 Author Members Report Posted April 6, 2016 According to Dan at Campbell-Randall, these machines were built on a Sieko CH-8, branded as a Consew 754 ( I think). Dan confirmed the shuttle interchanges between the Juki 441's and the Sieko. I am wondering if due to age if that shuttle has changed over the years. Parts are available for this old beast but they have to be sent over from Japan and it does take a while and are somewhat pricey. I am wondering if the shuttle driver can be pulled out of the machine and modified. I have a DVD coming from Tony Luberto on these 900B's in a couple of days and hopefully it will clear up the issues. This machine is really tight and I think it will be good if I can get this issue solved. Thank all of you guys for your help and ideas on this. Ken Quote
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