Tests 1-12; Test 1 Straight-Stitching; Test 2 Balance (Adjusting Forward/Reverse Feed) - Bernina 330 Service And Maintenance Manual

Tests 1-12

Test 1 Straight-stitching
Test 2 Balance (adjusting forward/reverse feed)
Test 3 Automatic darning program
Test 4 Display of firmware version
Test 5 Hour counter
Test 6 Speed calibration
Test 7 Stitch-width stepping motor test
Test 8 The two stepping motors in pinning position
Test 9 Stitch-length stepping motor test
Test 10 Display of active speed
Test 11 Display of RPM calibration factor
Test 12 Start/Stop-Function

Test 1 Straight-stitching

•
Select test no. 1
What to test:
•
Straight-stitching can now be done on the machine. The
needle can be set to centre, left or right, and the stitch
length and stitch width can be adjusted.
Press clr to end the test and to return to service program basic
position.

Test 2 Balance (adjusting forward/reverse feed)

•
Press BLC+ and BLC– buttons simultaneously to select
service program 2.
What to test:
•
Forward and reverse feed with 'stitch' 9.
Target state of electronic adjusting:
•
The stitching lines of 'stitch' 9 should meet up as close as
possible.
Electronic adjusting:
•
The value set appears in the display.
•
Use BLC+ and BLC- buttons to balance the stitching lines of 'stitch' 9 while sewing.
•
Neutral position is at value 3.
•
Press clr to save the value and to return to service program basic position.
•
Mechanical fine-tuning will complete balance adjustment.
BERNINA International AG · Seestrasse 161 · CH-8266 Steckborn · Switzerland
Balance
0 < 3 3 > 3 6
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