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Posted by Kathleen on September 12, 2008, 1:03 pm
Larry Green wrote:
> Kathleen wrote:
>
>> Big rush order to get out. 14 pairs of skidboots I'd promised
>> (against my better judgement) to a long-time customer.
>>
>> I'm stitching along, get distracted momentarily and I'm almost over
>> the edge of the seamline. Yank my foot off the pedal and grab the
>> handwheel to stop the needle. There's a jerk, a thump and a big
>> freakin' bird's nest. Shoot.
>>
>> Pull the ruined boot out, clean out the tangle and stick a piece of
>> scrap neoprene in there to check the stitching. And it ain't pretty.
>>
>> Change the needle, check the thread path, try again. No joy.
>>
>> Okay, so, big ugly loopy stitching. Tension, obviously. Twiddle the
>> tension screw. No change. None. Twiddle it some more. Nothing.
>> Crank it all the way in with no visible effect on the stitching.
>>
>> Hmm. Maybe the bobbin tension got borked somehow. Get the manual
>> out. Discover that the bobbin tension is really not meant to be
>> fiddled with. You have to take things apart to get to it.
>>
>> Stand up, pace around, glare at the machine. Read the manual again.
>> Open the machine up to take a look at what I'd actually have to do.
>> Close it back up. Pick up the screwdriver. Put it back down.
>>
>> Sit down, chew on the pad of my thumb and ponder.
>>
>> Go back over the list of what's already been tried. Thread path. I'd
>> checked it, yes, but...
>>
>> So I pulled the thread out and re-threaded the machine. And there it
>> was. The thread had followed the correct path but the jolt had pulled
>> it loose from between the tension disks. No wonder adjusting the
>> tension hadn't done any good.
>>
>>
>
> Glad you got it sorted but don't be afraid of changing the bobbin
> tension, it's not rocket science. If you use the same type and size of
> thread ALL the time then in most cases you can set and forget (until
> wear takes effect of course) but if/when you change to a different
> type/size/manufacturer you should always recheck the tension and adjust
> if necessary.
>
> The following page shows how to set the bobbin tension for *most* modern
> sewing machines (always check your manual first of course).
>
> http://www.geocities.com/gengvall/sew/sew.html
>
This isn't a modern sewing machine. It's a Consew 256R, a 38 year-old
japanese industrial machine. The local repair shops won't touch it.
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