Correcting The Thread Tensions - Pfaff hobbylock 799 Instruction Manual

Correcting the Thread tensions:
The thread tensions can be set from —5
to +5. The tension is set at the minus
range or plus range according to the
seam appearance.
Towards
+
=
stronger tension
Towards
—
=
weaker tension
Chainstitch
The thread tension of needle A is too
weak. The blue tension must be turned
towards
+.
Note:
For 2-thread overedge seams please
see page 27.
3-thread overedge seam (wide)
The thread tension of needle B is too
weak. The pink thread tension must be
turned towards +.
3-thread overedge seam (narrow)
The thread tension of needle C is too
weak. The pink thread tension must be
turned towards +.
3-thread overedge seam
The right looper thread is too tight
(green thread tension) or the left looper
thread is too loose (yellow thread ten
sion).
It is possible that both tensions are
incorrectly set.
Adjust tensions accordingly.
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