211G155 Adjustments

[MADMAX22]

Well finally getting into trying to get my 211 up and running. Bought it used and slightly broken before my underway.

Got it all lubed and relatively cleaned. Put in a few new components and some 92 thread and a size 20 needle or something (sorry cant remember but it seems about the right size).

Well had to retime the hook assembly (forgot what its called) to grab the thread properly. Now I notice when stitching it wants to bunch up underneath the work. Looks like a little rat nest along the stitch. What is usually causing this?

Another question is there a shim you have to change on these for larger thread and needles? I wanted to try 138 thread if I could although 92 will work for now.

How do you guys set these up for sewing thinner leather? Would like to be able to sew about 6oz vegtan if I can. Mostly wallet interiors and such. Now it does still have the clutch motor, am assuming this thing needs to get replaced to really give it any kind of torque so will be looking at a servo motor in the future.

Thanks for any info guys.

[Wizcrafts]

When the top thread bunches up under the bottom layer, it has probably come loose in the upper tension disk. Or, the bobbin thread may have twisted around itself. Check your thread paths and tensions.

Time the needle so that the pickup point passes at about 1/8" over the eye, after the needle has ascended about 1/8 inch or so. You have to have enough upward motion to form the loop in the eye, but not so much that the point hits too high over the eye. You need a tiny amount of side clearance betwixt the point and the needle's eye.

The check spring affects the length of time that the top thread is held under tension, as the take-up lever moves down. You should verify that the top thread is properly seated in the check spring disks and is being pulled down by the spring. The length of spring travel can be adjusted for a balance of degrees under steady tension, vs loose top thread. Too much check spring motion can cause the loop to not form properly, under some circumstances. To little can cause loose top stitches, or thread that flops around the bottom disks and gets wrapped around the knurled nut on the front of those disks.

The feed dog must also be in time with the needle and presser feet.

IHTH

[MADMAX22]

Thanks Wiz, still working on it. Ive got it doing pretty good stitches on 5oz chap type leather and what not. I am going to play with it more tomorrow. Still learning a bunch about these guys. Need to get one of those roller feet or teflon feet for it.