Function Of Supplementary Thread Tension In Relation To The Sewing Foot Lifting And The Speedomat For Subclass; Opening The Thread Tension - Dürkopp Adler 869 Operating Instructions Manual

6.2.2 Function of supplementary thread tension in relation to the sewing foot lifting and the Speedomat
for subclass 869- ...

6.3 Opening the thread tension

14
The thread supplementary tension can, at any time, be switched on or
off by actuating key 1 (see chapter 6.14) of the key pad. The
parameter F-255 must be set on "7" for this to work.
Parameter Stroke adjustment max.
Setting via knee switch
F-197 = 0
F-197 = 1
F-197 = 2
F-197 = 3
(*) If the stroke adjustment (max.) is switched on via the knee switch
and the HP-speed (from parameter F-117) is reached through the
"Speedomat", then the supplementary thread tensioner will be
switched on automatically.
0 = Supplementary thread tension closed mechanically
1 = Supplementary thread tension opened mechanically
·
If the supplementary thread tensioner is closed, this condition will
be maintained when adjusting the stroke.
·
When switching the machine off, the last setting of the
supplementary thread tensioner will be maintained through the
mains connection.
Basic setting of the control unit for the automatic stepped reduction of
the speed (Speedomat) through the setting wheel for the height of the
alternating feed stroke
Parameter 188
Step 01-21
Step 01-10
Step 11-18
Step 19-21
Subclasses
869-180020, 869-280020
When lifting the sewing feet with the knee lever, the main and
supplementary tensioners are automatically opened.
Subclasses
869-180122, 869-180322, 869-280122, 869-280322
The needle thread tension is automatically opened when trimming the
thread.
Reaching of the HP-speed
1
0
1 (*)
0
Entire Speedomat range
max. allowed speed, Parameter
-1
F-111 = 3000 min
Linear stepwise reduction of the max. speed
(Speedomat)
max. allowed speed, Parameter
-1
F-117 = 1.800 min
Stroke adjustments
setting wheel
of parameter F-117
(Speedomat)
1
1
0
0