Duerkopp Adler 669 Premium Operating Instruction page 72

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Setting: Needle thread tension (Thr.Tens.)
Depending on the speed, the needle thread tension can be
adjusted at different speeds by the software.
linear Thr.Tens.
Value range 00 – 99
Min. speed
Value range
0000 – 4000 [rpm]
Max. speed
Value range
0000 – 4000 [rpm]
2.OnOff Min. speed
Value range
0000 – 4000 [rpm]
2.On Min. speed
Value range
0000 – 4000 [rpm]
Setting: Sewing foot pressure (FootPress.)
Depending on the speed, the sewing foot pressure can be adjusted
at different speeds by the software.
linear FootPress
Value range 00 – 20
Min. speed
Value range
0000 – 4000 [rpm]
Max. speed
Value range
0000 – 4000 [rpm]
Operating Instructions 669 PREMIUM - 00.0 - 11/2016
Maximum needle thread tension
reached at the upper speed limit.
Speed at which the increase in
needle thread tension should start.
Speed up to which the increase in
needle thread tension should occur.
Speed from which the 2
thread tension should be used.
Speed from which the 2
thread tension should be used.
Maximum sewing foot pressure
reached at the upper speed limit.
Speed at which the increase in
sewing foot pressure should start.
Speed up to which the increase in
sewing foot pressure should occur.
Programming
nd
needle
nd
needle