Servicemanual_aurora_435_450_english_V3_032530.50.04_Korrektur.doc 32
SP 1 - 12 Program tests
SP 1.x Stitch patterns
What to test:
SP 1.1 Functioning of zig-zag and
straight stitches
SP 1.2 Functioning of the honeycomb
stitch
SP 1.3 Functioning of the darning stitch
SP 1.4 Functioning of the buttonhole
stitch
SP 1.5 Functioning of the keyhole
buttonhole stitch
What to adjust: Mount presser foot and insert needle and
thread the sewing computer.
Depending on the stitch program required,
press key 1 one to five times in the basic
program.
Press key 18 to confirm the selected test.
Start sewing. Press OK key to exit and
return to basic program.
Desired status: Each test type is displayed in the matrix
(symbol g) until activated by pressing key
18 (start/stop).
The selected and displayed stitch pattern
(zig-zag/ straight stitch, honeycomb,
darning, buttonhole or keyhole buttonhole)
is stitched on actuating the foot control.
Stitch length (key 22/23), stitch width (key
20/21) and needle position (key 13/14) can
be varied. The respective values are
indicated on the symbol a, e and f in the
display.
Repair note:
• Check main shaft, thread take-up lever,
belt etc. for ease of motion and adjust
mechanical parts if necessary.
• Check thread tensions
• Check operating voltages (see basic
program a)
• Check sensors
(see basic program 0.2-0.8).
• Check motor functions (test 3 and 6)
• Check electronic settings (see tests 8)
• Check mechanical settings (see general
settings)
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