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CowboyBob

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Everything posted by CowboyBob

  1. CowboyBob
    I checked the speed again you can ramp it up slowly with your foot anywhere from 25 to top speed of 410
  2. CowboyBob
    The 150 is w/o a reducer,the motor will run slower with one since there's less friction.Our box style reducer has a 4:1 ratio & the speed is 15 RPM sewing 20 oz of leather on a CB341,so motor is down to 120 RPM.
  3. CowboyBob
    Shaft speed
  4. CowboyBob
    I got my tachometer out & the lowest speed running a machine is 150rpm with a CSM-550-1 and that's why we use them on everything.No boards to blow either.
  5. CowboyBob
    Should use #23 for 207,#22 is for 138
  6. CowboyBob
    The belt looks good.
  7. CowboyBob
    The squeaking is the plastic belt,the tight spot could be lack of oil somewhere,have you oiled everything on the needlebar end?Including the takeup lever,needlebar & all the linkages?
  8. CowboyBob
    Someone has adjusted your machine for the 134-35 needle which is a mm or so shorter.To adjust for the longer 135x17 you need to loosen the screw on the needlebar clamp that is under the face cover.If you do this be sure to have 1-hand on the screwdriver when you loosen the screw & the other one on the needlebar so it doesnt drop or you'll have more work to do.Then just raise it 1 mm or so.
  9. CowboyBob
    We have it in stock & can ship USPS 3-4days for under $5.00 for the postage & $3.00 for the screw
  10. CowboyBob
    Schmetz does make a size #21 in a 794S point & of course we have them.And the smallest 7x3 you can buy now is a#19 or #120 in metric,they quit making the #18.
  11. CowboyBob
    The table looks great!
  12. CowboyBob
    The 31-19 had the shorter arm,yrs ago we used to rebuild these & sell them for auto upholstery machines & after we sold all the machines we could find here,we found a place in the UK that had them & they sent the 31K47 & they worked alot better with the higher walk.
  13. CowboyBob
    Yes, if your timing is slow the take-up lever is trying to pull the thread up before it's all the way around the hook & can cause the problem.
  14. CowboyBob
    The longer throw like your is better,you get more lift on the feet as they walk to clear thicker foam or to climb over a higher seam.
  15. CowboyBob
  16. CowboyBob
    Is the feed dog coming above the needle plate enough?If so you could elongate the slot for the stitch length screw so it goes down alittle more,you also want to check that the feed dog isn't hitting in the front or back of the needle plate.There's an adjustment on the lower feed shaft that sets it.
  17. CowboyBob
    Even IF it didn't sew it would be worth more than that!
  18. CowboyBob
    I still have some #2,3,31/2 & 4 needles.alot of people keep the old needle if they break the hook off & reuse it for an awl (with minor sharpening)
  19. CowboyBob
    I've used a trigger pull guage 1-1.5 Lb pull is all you need on the bobbin & around 5Lb on the top thread.
  20. CowboyBob
    They are usually adjustable so you can match what ever stitch length your using.
  21. CowboyBob
    Most of these motors were 220V 3ph,you'll usually have to keep the air cylinder & get an air switch to hook up to the lift cylinder for a foot lift.Some machines that didn't have air lift had a knee bracket on them.
  22. CowboyBob
    Looks like one thickness of leather try sewing at least 2 or more & see what happens.
  23. CowboyBob
    Size 69-138 was sewn w/a DIA point 207-346 S-point
  24. CowboyBob
    @FSForgeThe largest thread I would recommend for this machine is size#138.There is a screw above the screw that holds the needle in that allows you to move the needle clamp left to right,just loosen & adjust as needed.
  25. CowboyBob
    @falcon45 Size #25 is from US & size#200 is metric so both # are the same size,we do have these in stock.
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