Malfunction Remedies - Duerkopp Adler 558 Operating Instructions Manual

4. Malfunction Remedies

Malfunction
1. Machine does not start or
runs unevenly.
a) V-belt from the motor to the
high-speed wheel or to the
handwheel is too loose.
b) Machine is in front of the
cutting position at the time of
starting.
2. Clamp closing lever cannot
be closed or opened.
Material support plate is not in
the end position.
3. Cloth clamp pressure is
too high or too low.
4. Buttonhole is not cleanly
cut open.
a) Cutting block has been cut into
too deeply by the knife.
b) Knife blade is blunt or broken.
c) Exit opening in the knife is
blocked by cloth waste.
d) Cutting pressure is not
correctly set.
e) The cutting block
corresponding to the cutting
knife is not mounted.
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Remedy
Tension V-belt as per Installation Instructions for
the 558.
With the main witch turned off and the needle high
bring the machine into its end position with the
hand crank.
Reduce cutting pressure as per Chapter 2.14.
With the hand crank bring the material support
plate into the end position. With a repeat of this
malfunction have a specialist reset the turn-off
timing (see Service Instructions for the 558).
When changing over to cutting before or cutting
after sewing always slide the turn-off bolt up to the
stop.
Reset the cloth clamp pressure (see Chapter
2.17).
True the cutting block (see Chapter 2.13) and
reset the cutting pressure (see Chapter 2.14).
Insert a new knife or send the old knife to one of
the DÜRKOPP ADLER AG business offices for
reworking.
Remove the knife and clean the exit opening in
the knife and knife holder or cutter bar.
Reset the cutting pressure (see Chapter 2.14).
Always mount the cutting block corresponding to
the cutting knife used !