Seiko TH-2B - Thread Tension Adjustment

Adjusting needle thread tension
By turning the tension regulating
nut clockwiseneedle thread
tension increases.
By turning the tensionregulating
nut counter-clockwise^^^ needle
thread tension decreases.
S
Adjusting hoBbin thread tension
By loosening set screw(l) and tension regulating
screw(1).
The set screw(l) should exactly be tightened after
the bobbin thread tension was adjusted.
By turning the tension regulating screw clockwise/^
thread tension increases and by turning the tension
regulating screw counter—clockwise thread tension
decreases.
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From the library of: Superior Sewing Machine & Supply LLC