Function Of The Main Thread Tension And The Supplementary Thread Tension In Relation To The Sewing-Foot Lift For Subclass 669-180312 - Duerkopp Adler 669 Instruction Manual

6.2.1 The influence of the sewing-foot lift on the main thread tensioner and supplementary thread
tensioner, for subclass 669-180312
10
Fig. A:
Fig. B:
Fig. C:
Button 1 (see Chapter 6.15) on the machine's row of buttons can be
used to activate or deactivate the supplementary thread tension at any
time. The parameter F-299 must be set to "1" for this to work.
Sewing-foot lift
in the seam
Parameter Main thread Supplementary Main thread Supplementary
setting tension
F-196=0 0
F-196=1 1
F-196=2 0
F-196=3 1
1 = Thread tension opened mechanically
0 = Thread tension closed mechanically
·
If the supplementary thread tensioner is open, the state of the
sewing-foot lift does not change.
·
If the machine is turned off, the supplementary thread tension
remains at its previously set state.
Correct thread interlacing in the center of the
material
Needle-thread tension too weak
or
Hook-thread tension too strong
Needle-thread tension too strong
or
Hook-thread tension too weak
thread has been cut
thread tension
tension
0
1
0
1
Sewing-foot
lift after the
thread
tension
0 0
0 0
1 1
1 1