Techsew 2700 - Stitch length adjuster issues.

[SpruceMoose]

Anyone have any pointers to possibly fixing the stitch length adjuster? I've scoured the internet, these forums and cannot find much.

I've had it 3 weeks, it's been working, I've been practicing on it. 

I've found the wheel hasn't felt quite right, felt like it was sticking a bit, (also the machine screws, being flat, that hold the wheel in place come loose and the dang wheel wiggles out)  so my husband and i went through it making sure oil was getting to where it needed, oiling and running higher speed, listening, watching(as it had sat unused(though oiled) before i bought it,) thinking maybe oil wasn't getting somewhere( he's a diesel mechanic and has a good eye for making sure things sound right, getting oil etc) 

It had seized up for a short period after about 20 minutes of running it higher sped  with my husband looking over it, in it, watching where oil was and wasn't.

 Keep in mind, we did not take anything apart or tinker with any innards other than the bobbin case to clean some thread out, everything remained timed etc afterwards.

So i thought i'd bring it in to get it checked and serviced, as i didn not want to risk running it and damaging anything further if something was wrong, like a bushing etc. Stitch length adjuster worked before going. Unfortunately does not now. Not many industrial machine repair people around my parts. I am not accusing, something could have went amiss when it seized.

Repairman also thought 7 oz leather was too thick for this model to stitch proper and that i should only expect to stitch maybe 5oz and less. From the research i've gathered this machine can handle  3/8th's leather. I've been practicing on about 2/8 thick leather and down and it worked good, timing wise, stitch length, etc. with 92 and 138 bonded nylon thread, 135x17 sz 23(yes i know fabric) have 135x16 dp on order.

Another note,  the take up spring was completely broken the whole time i've had it, yet everything worked, they replaced it with a very thin one, and removed all the internal wicks saying they werent factory, i told him they were before i dropped it off, so now theyre gone.

I also mentioned the safety clutch reset button and though possibly the adjustment on it's sensitivity could possibly be the culprit of it stopping, they never checked it. 

I think i've also got, to add to this, some crap thread. very stiff and twisty, has kinked up on me alot. Looking to replace it with a better brand, some A&E bonded nylon.

Hoping I can get it to work, hoping i'm not sh*t out of luck. Joys of second hand machine gambling.

 

Biggest mistake, not researching the proper repair business. Industrial. 

Currently saving up a few bucks to bring it to the right place

 

 

Thanks for any info or condolences lol.

 

Edited August 2, 2023 by SpruceMoose

[kgg]

59 minutes ago, SpruceMoose said:

Anyone have any pointers to possibly fixing the stitch length adjuster?

Since you probably don't have a manual I think the Techsew 2700 is similar to the Seiko cw8b , Cowboy cb227r and the Consew 227r so here is a pdf of the manual that maybe of some use to you.

kgg

CB227R_Oper.Manual_print_pages_3-13.pdf

[SpruceMoose]

9 hours ago, kgg said:

Since you probably don't have a manual I think the Techsew 2700 is similar to the Seiko cw8b , Cowboy cb227r and the Consew 227r so here is a pdf of the manual that maybe of some use to you.

kgg

CB227R_Oper.Manual_print_pages_3-13.pdf 2.19 MB · 0 downloads

Thanks, I did find one on one of wiz's threads on the 2700. I believe the jukis 341n 's manual is another one.

Good to have a few though, some online pdfs can be missing pages, usually the one you want.

edit:i do have the 2700 manual, same info but it didn't come with the parts/engineers side, i do have a copy of the consew as well. 

Hoping the screw parts match

Edited August 2, 2023 by SpruceMoose

[SpruceMoose]

It appears I may be missing the spring and ball from the stitch length adjuster lever, almost like someone took it aprt and didn't put it back. 

Now to make sure which machine has the same parts. 

[kgg]

4 hours ago, SpruceMoose said:

I believe the jukis 341n 's manual is another one.

The Juki LS- 341is a different machine. The 2700 would be closer to a PFAFF 335 then the Juki LS-341 while their Techsew 2750 is a clone of the Juki LS-341.

kgg

[Northmount]

@SpruceMoose  Here are the 2700 manuals that I got with my machine a few years ago.

2700-parts-manual.pdf

2700-instruction manual.pdf

 

[SpruceMoose]

Thanks everyone, i've got the right parts manual from techsew. i just wanted to make sure i had the right parts numbers.