Leatherwork Guidebook - Flipbook - Page 38
There are thread loops on the
underside of the leather/fabric
Thread pulls out of the needle eye
when starting to sew
A tangle on the bottom side of the
application means there is not enough
upper tension. More than likely, the
thread is not being pulled snugly
between the tension disks (p. 28, 34 H
and G) on the Upper Tension Assembly
or is not between them at all.
Confirm that the needle eye is threaded from
left to right (p. 11, 10 K). Then pull out a longer
thread tail and trap it with your finger to the bed
of the sewing machine (A). Release the thread
tail after the first few stitches.
1. Lift the presser foot to push the two upper
tension disks apart.
2. Firmly pull the thread against the center
shaft between the disks.
A rat’s nest forms in the first few
inches of sewing and then clears up
Eliminate this issue by trapping the thread tails
(A) from the needle and the bobbin as you
start to sew.
3. Drop the presser foot. The disks should
close on the thread creating plenty of
tension. Gently pull on the thread to feel the
tension.
4. If this did not solve the problem, pull the
cover knob off the Upper Tension Assembly
and turn the knob found underneath to the
point where its outer surface has three
threads of the tension post showing. Then
repeat steps 1-3.
A
41
Thread loops could also be caused by a burr
on the Retaining Ring Cap Spring (p. 34, 40 B).
Remove any burrs by polishing them with emery
paper or a fine file. If badly damaged, replace
with a new Retaining Ring Cap Spring (#1603).
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