DURKOPP ADLER 669 CLASSIC, Operating Instructions Manual

Page: 53 / 118

Operation
Operating Instructions 669 - 00.0 - 08/2019 51
In the middle of the
seam
Interrupt sewing
operation • Release pedal (return to rest position)
 The machine stops in the first position (needle
down)
The sewing feet are down
Continue sewing
operation (after
releasing the pedal) • Press the pedal forward
 The machine then continues to sew with the
speed determined by the pedal
Sewing an interme-
diate lockstitch • Press the stitch regulator (4) downwards.
 The machine sews in reverse as long as the
stitch regulator (4) is pressed.
The speed is determined by the pedal.
OR
• Press button (3)
Sewing over trans-
verse seams (maxi-
mum sewing-foot
stroke) The maximum sewing-foot stroke is activated.
The speed is limited to 1600 min
-1
.
Operating modes for maximum sewing-foot
stroke
• Briefly press the knee switch for activating the
maximum sewong foot stroke
• Briefly press the knee switch again for deactiva-
ting the maximum sewing foot switch
2
nd
set stitch length
during sewing
(max. stitch length)
• Press the button (2)
Raise the thread
tension during
sewing • Press the button (1)
At seam end
Remove sewing
materia • Press the pedal completely backwards and
hold
 The final bartack is sewn (when activated).
The thread is cut.
The machine stops in the second position.
The needles are up (reverse rotation). T
he sewing feet are down.
• Take out the material
Sewing process Operation