DURKOPP ADLER 867 Instruction Manual page 31

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Operation mode of the quick stroke adjustment
The activation period of the maximum sewing foot stroke depends on
the set operation mode
operation modes
The individual operation modes are determined by the adjustment of
the parameters F-138 and F-184 at the control panel (see enclosed
instructions of the motor manufacturer)
Operation mode
igh lift for walking
foot operation
mode not stored
F-138 = off
F-184 = 0
igh lift for walking
foot operation
mode stored
F-138 = on
igh lift for walking
foot operation
mode not stored
with min. speed
F-138 = off
F-184 0 < 100
It is possible to choose between three
Operation / Explanation
The maximum sewing foot stroke remains engaged as
long as the knee switch 2 is actuated
The maximum sewing foot stroke is engaged by
actuating the knee switch 2
By actuating the knee switch once again the maximum
sewing foot stroke is disengaged
The maximum sewing foot stroke remains engaged as
long as knee switch 2 is actuated
After releasing the knee switch the machine sews with
maximum sewing foot stroke until the set minimum
speed is reached (parameter F-184)
Then the seam is continued with normal sewing foot
stroke
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