Checking Detection Of Fabric Thickness (If A New Main Pc Board Is Installed, This Adjustment Must Be Performed.) - promelectroavtomat ULT2003D Service Manual

10. CHECKING DETECTION OF FABRIC THICKNESS
(If a new main PC board is installed, this adjustment must be performed.)
STANDARD
When the fabric thickness is set to 0 mm and 3 mm in test mode "2", the buzzer should sound once if operation
is normal.
ADJUSTMENT
1. Select test mode "2".
2. Install the J presser foot and then lower the presser foot and
set the needle bar to the lowest position.
3. Press 0 mm on the display. (The buzzer should sound once.)
4. Insert a spacer with a thickness of 3 mm beneath the J presser
foot.
5. Press 3 mm on the display. (The buzzer should sound once.)
NOTE :If the values read in steps (3) and (5) are normal, the
buzzer will sound once each time. If they are not normal,
the buzzer will sound twice each time.
If there is an abnormality, perform the procedure again
starting from (2).
Adjustment Points
1. Be sure to install presser foot J when adjusting the fabric
thickness detector.
2. If you do not have spacer when setting the thickness to 3 mm,
place a 3 mm hexagonal screwdriver between presser foot J
and needle plate.
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