Cornely LG3 - CHAPTER 5: ADJUSTING THREAD TENSION; NEEDLE HEIGHT FOR STITCH QUALITY; THREAD TENSION REGULATION

For the conical spoolholder you can regulate the tension by screw 25764
(Fig 13).
If you are missing some stitches : increase the tension
If the thread is breaking : decrease the tension.
CONICAL BOBBIN
25764
FIG. 13
The Cornely machine is probably the most durable piece of machinery ever made.
This could be due to the care they are given by the operator.
C_LG3_MANUAL
11/01/2006
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From the Library of Superior Sewing Machine & Supply LLC