Tension Problem

I have an Alpha Sew walking foot machine that I recently purchased
used from an individual that told me it was never used. I am trying
to sew heavy sail fabric. I can=92t seem to get the tension right. The
top stitch looks OK but the knots are visible on the bottom =96 one
thread just lays along the fabric and the other loops around it. My
instructions say to lesson the bobbin tension and tighten the top
tension. My problem is that I have them adjusted as far as they will
go and it doesn=92t seem to help. The screw on the bobbin nearly falls
out and the thread pulls out easily. The upper tension is at it
highest setting (9) and the thread is hard to pull out of it. Do my
instructions have it reversed? Any recommendations?
Thanks in advance.
Ron
Reply to
Ron
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I have an Alpha Sew walking foot machine that I recently purchased used from an individual that told me it was never used. I am trying to sew heavy sail fabric. I can?t seem to get the tension right. The top stitch looks OK but the knots are visible on the bottom ? one thread just lays along the fabric and the other loops around it. My instructions say to lesson the bobbin tension and tighten the top tension. My problem is that I have them adjusted as far as they will go and it doesn?t seem to help. The screw on the bobbin nearly falls out and the thread pulls out easily. The upper tension is at it highest setting (9) and the thread is hard to pull out of it. Do my instructions have it reversed? Any recommendations? Thanks in advance. Ron
What size thread are you using?
Reply to
Ron Anderson
> I have an Alpha Sew walking foot machine that I recently purchased > used from an individual that told me it was never used. =A0I am trying > to sew heavy sail fabric. =A0I can=92t seem to get the tension right. =A0= The > top stitch looks OK but the knots are visible on the bottom =96 one > thread just lays along the fabric and the other loops around it. =A0My > instructions say to lesson the bobbin tension and tighten the top > tension. =A0My problem is that I have them adjusted as far as they will > go and it doesn=92t seem to help. =A0The screw on the bobbin nearly falls > out and the thread pulls out easily. =A0The upper tension is at it > highest setting (9) and the thread is hard to pull out of it. =A0Do my > instructions have it reversed? =A0Any recommendations? > Thanks in advance. > Ron > > What size thread are you using? > > -- > Ron Anderson A1 Sewing Machine > 18 Dingman Rd Sand Lake, NY 12153
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had purchased some Ultra Dee V-92 thread. What came with themachine was three one lb. (very large) spools of thread that is about2 or 3 times larger than that. So, it is pretty big.
Reply to
Ron
Remove the thread from the needle, lower presser foot, then pull on thread. Should have LOTS of tension, but probably has next to none if you are getting a bird's nest on the bottom.
FWIW, on sail cloth and using V-92 thread on a similar machine, I pass the thread through two loops on the bar ahead of the tension control and then use fairly tight tension. On the bobbin, I use quite tight tension. On spinnaker cloth, I loosen up both tensions to keep the cloth from puckering. In fact, I find spinnaker cloth a bit touchy on this machine and often use my old Pfaff 130 for this.
Reply to
jaxashby
Size 92 is probably not to heavy for that machine. Check to see if there is a build up of stuff between the tension disks, also check to see if they are grooved. That nylon thread is like a saw and cuts the metal fairly easy.
Reply to
Ron Anderson

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