Thread Tension (4 threads) (continued)
Adjusting the thread tension may be required
depending on the type of labric and thread being
used.
Correct Tension
Upper looper
thread
Thread Tension Adjustment
• Set all four thread tension dials at "'3", Then sew, and check the thread tensions.
Wrong Tension Wrong Tension
is tight and/or thread is tight and!or
loose.
looper
thread
Loosen lower looper thread tension
and/or tighten upper looper thread
tension,
Upper looper
lhread tension
Lower looper
thread lens}on
Loosen upper looper thread tension
andfor tighten lower looper thread
tension.
Upper looper Lower _ooper
thread lens_on lhread tension
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