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Posted

Im new at using a Consew and I am having difficulty finding any information on the Consew 202rb.  I found it at an estate sale and I'm having problems with needle breakage.  I have tried to put together a reasonable working manual (using models before the 202 and after it) since Consew does not have a manual in their resources, just the parts list.  

My issue is the machine seems to purr right along and then after about 20 minutes of sewing it breaks the needle.  I have noticed a dent in my bobbin case but I don't know if this was there when I bought it or not. I ordered a replacement bobbin case for the 206RB (M style) hoping it would fit, but it doesn't.   I'm using #69 thread and a 135x16 needle as I was told the 16 is for leather instead of the 17.  

If anyone knows this machine or if there is a source for a manual can you please help me.  I am mainly using it to sew patches on leather vest for motorcycle riders.  

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Posted
38 minutes ago, PISTOLs said:

Im new at using a Consew and I am having difficulty finding any information on the Consew 202rb.

Moved your post to Leather Sewing Machines.  You'll get more help here as this is where the machine guys hang out.

 

Posted

@PISTOLs - Yes, the 135x16 needle is for leather.  What size needle are you using with your v69 thread?  Have you tried going up one size which sometimes helps.  Hmmm, I read that as you are breaking threads, but realize you're talking about the needle itself.  Funny that you can sew fine for 20 minutes and that then the needle breaks.  Is there anything different in your fabric assembly when that happens?  Surely you're not sewing for 20 minutes non-stop... there must be stops and starts, new assemblies being sewn.  Are you new to industrial machines in general, or only new to that 202rb?  Are you holding the top thread tightly as you begin your sewing?  Do your stitches look alright up until the needle breaks?  Or do you have thread nests on the under side?  Maybe if you post some photos (maybe even a video) someone here would be able to give advice.  Good luck!
 

Current machines: Janome HD3000 and Skyline S5, Consew 206RB-5, Singer Profinish serger, Techsew 2750 PRO, Sailrite LSZ-1 Premium, Consew DCS-S4 Skiver

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Posted

@MtlBiker What size needle are you using with your v69 thread?  135 x 16 Groz-Beckert LR/RTW Have you tried going up one size which sometimes helps.  I will try a 135 x 17 and see if that helps.  Is there anything different in your fabric assembly when that happens?  Not really, it pretty much is one layer of leather and a patch  Surely you're not sewing for 20 minutes non-stop... there must be stops and starts, new assemblies being sewn. Yes, I am sewing patches so there are start and stops and corners to turn.  It seems that every adjustment I make works really good on my test leather and then I begin to sew (3.5 stitch length) and after a time I hear a light thud or jump and I know something about to happen and before I can get my project to a stoping point the needle breaks  Are you new to industrial machines in general, or only new to that 202rb? Yes I m new to industrial machines but have ben sewing using a household machine for about 3 years. Are you holding the top thread tightly as you begin your sewing?  Yes Do your stitches look alright up until the needle breaks?  Yes they look really good Or do you have thread nests on the under side? No  nests.  Do you know if there is supposed to be play in the needle bar & presser foot bar?  As I was changing my needle and placing  the presser foot back on ( I rethread the upper and lower thread after the needle breaks) and while I was tightening the screw, I notice that both bars move forward a little.  Is it possible the needle bar is moving as I sew?  Mostly the broken end of the needle is found in a stitch on the underneath of the project.  I don't have a manual and the 205 206 have different mechanisms Thant the 202 so trying to find the right place to make the adjustments is a little frustrating.  If you tell me what pictures you would like to see I can post them. Thanks 

Posted
10 minutes ago, PISTOLs said:

What size needle are you using with your v69 thread?  135 x 16 Groz-Beckert LR/RTW Have you tried going up one size which sometimes helps.  I will try a 135 x 17 and see if that helps. 

135x16 is a leather point needle, not a size.  135x17 is for sewing fabrics, not a size.  These are needle systems designations.  It relates to the type of point, and length of the needle.

Take a look at this needle chart that lists needle and thread sizes.

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Posted (edited)

I understand that 135 x 16 is the system. My bad for not adding

 100/16 for needle size

Edited by PISTOLs
Posted

@PISTOLs - As @Northmount already replied, you haven't answered what SIZE needle you are using with the v92 thread.  135x16 and 135x17 are needle systems.

Does the problem happen most often when you turn a corner or does it also happen along straight stretches?  When you come to a turn, make sure you bury the needle, lift the pressure foot, turn your assembly and lower the presser foot again before continuing to sew. 

2 minutes ago, PISTOLs said:

I understand that 135 x 16 is the system. My bad for not adding

 100/16 for needle size

That needle is at the lower end of what's recommended for v92.  Can you try switching to a #18 needle to see if your problem persists?

 

Current machines: Janome HD3000 and Skyline S5, Consew 206RB-5, Singer Profinish serger, Techsew 2750 PRO, Sailrite LSZ-1 Premium, Consew DCS-S4 Skiver

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Posted

Size needle is 16. The problem happens at any time and is not specific to turning corner.  I have a positioner so when I stop I am always in the down position.  I also turn my covers exactly as you quoted.  

 

Posted
13 minutes ago, PISTOLs said:

I understand that 135 x 16 is the system. My bad for not adding

 100/16 for needle size

You never mention how thick the items are that you are trying to sew. The 100/16 needle is really the bottom end for sewing with V69 in thin items or for V46 in thicker items. In thicker / tougher items move up to a size 19 or  20 needle. The problems to me sounds like the needle is being bent / deflected and with such a thin needle, size 16,  it is going to be prone to breaking even with a tuned machine.

kgg

Juki DNU - 1541S, Juki DU - 1181N, Singer 29K - 71(1949), Chinese Patcher (Tinkers Delight), Warlock TSC-441, Techsew 2750 Pro, Consew DCS-S4 Skiver

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Posted

@kgg   I am sewing patches on leather vests, mostly leather motorcycle vests. The thickness of each vest really depends on the leather used.  Since I can't test the material I have to try to make an adjustment that will work with for all vests.  

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