Presser Foot Fixation - Bernina aurora 430 Service Manual

Presser foot fixation

Standard:
The tension pin 81 should be positioned one
third to halfway along tension lever 82. The
presser foot sole 83 should be positioned
parallel to the markings on the stitch plate.
Correction:
• Loosen screw 84 on clamp 85.
• Adjust clamp 85 height until correct
tension position is reached (1/3 of
tensioning span).
• Align the presser foot sole 83 with the
markings on the stitch plate.
• Tighten screw 84.
Presser foot height
Standard:
• Drop feed-dog.
• Raise lifter lever.
• Use 7.5mm presser foot level gauge (86)
to check height.
Correction
• Remove adjusting wheel lock 161.
• Remove adjusting wheel 162.
• Raise lifter lever.
• Loosen screw 64 on presser-foot bar
guide.
• Place presser foot on gauge 86 (keeping it
parallel to markings).
• Press presser-foot bar down by hand.
• Tighten screw 64.
• Refit adjusting wheel 162.
• Refit adjusting wheel lock 161.
• Check functioning.
85
84
82
81
84
Rear view
83
162
161
64
69
86