barclay

thanks Uwe. the vid did not open but I got it sewing again. loosened the gear below the hook on the horizontal shaft from the right end of machine, the center shaft. retimed it and it stitches. hope that is what I should have done, just made sense that when it jammed the gear slipped.

I don't believe it has a clutch. it would be on the center shaft looking at the bottom, correct?

Hi Guys and Gals, My 345 has been stitching perfectly until about an hour ago. I was testing some vinyl and it jammed, now the timing is off by almost 180 degrees. Where to start?

All is well, 5mm per stitch is good enough for my purposes. Some lighter material it pulls 6mm stiches. The singer cast iron welded fine. Tacked it every 2" around the base watching not to heat it asymmetrically. let it cool very slowly. Used a nickle rod in my arc stick welder. Not a mig. What is the reason a needle positioner and speed reducer will not work together?. How can the controller 'know' what pulleys you have on it? Still would like it to go slower sometimes. But one stitch at a time does work. thanks for your ideas.

Got it stitching almost to spec, 5.1mm. Working well thanksI did not adjust the vertical eccentric as it looked like it was doing what it was supposed to. Its a little touchy at start up but my foot skills will get better with the needle positioner doing one stitch at a time. Rubber, leathe,r canvas.... it all worked. thanks @Uwe.

Well i have not been able to loosen the eccentric collar. No way to get a wrench on it. They must have a proprietary tool that threads into the set screw holes. heat in such a tight place? Threw some oil at it and will try again tomorrow night. Eccentric looks to be off by less than an eight of a turn. was going swell thanks to your info thanks.

Thanks I will give it a try later after I make sawdust, my real job. So I set the eccentrics before I set timing and needle height?

Howdy, My Pfaff 345 h3 stitches but not full length stitches. The needle enters the material too early in my observations. So where do I start? What do I do first? Feed dog travel, needle bar height, hook timing. From the beginning. Right now the no movement for/rev lever up down produces no feed dog/needle movement at 6mm above bdc, instead of .6mm. Which eccentric do I move? and so on. Get me started and I should be able to figure it out. The machine stitches very nice 3.5mm stitches. thanks in advance, I am having fun learning. I am confident @uwe knows the answer :-)

Got the machine sewing again. It is sewing at 8 stitches and inch. Can I get it to make fewer? would like a longer stitch length. Rated at 6mm per stitch but not getting that. Is there internal adjustments I can make? Pfaff up top Singer below.

needle positioning helps get one stitch at a time, but still kind of fast without doing a bunch of foot work. I think I will give it a go like this. thanks for the advice. b

I hooked up the machine temporarily. Running a 2.5" motor pulley and the 5.875" handwheel pulley i stitch 127 spm at 300 rpm, (i counted them!). If I go down to a 45mm(1.75") at motor I will get 89 spm. I have not hooked the needle positioner up but will take your suggestion and do that to see if I can get better stitch by stitch at the start up. The machine runs smooth, but I don't have a upper tension spring for the thread to run through, waiting for that to be shipped.

the motor slowest speed is 300 rpm 750 w.

new handwheel, from 3" to a new 5 -7/8". Now the motor mounting and reducer . This set up gets me down to 100spm, would like to go slower, so some more pulleys underneath. The original handwheel is still intact. b

decided to use the Pfaff brown color, like the decal. Matching the machine would never be right so I went with the contrast, looks fine. Its a singer base ro start with so originality means nada at this point. Top plate and needle bar cover plate are now brown too. Almost ready for the servo and table etc. b

Thanks for the info. My hand wheel pulley is only 3.5. I will turn a pulley that goes around the 3.5 and screws to the handwheel, leaving the original handwheel. Or I may reduce it further as you suggest. already repainted it, the gray was ugly.