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Adjustment procedures
Results of Improper adjustment
1. Remove the top cover.
2. Loosen screw
❶
.
3. Turn the eccentric cam
❷
. The direction of turning the eccen-
tric cam and the relation between the eccentric cam and the
needle thread loop is shown in the following table.
•
Size of needle thread loop
A
: Move forward
B
: Move backward
Loop becomes smaller. Loop becomes larger.
4. After the adjustment, fully tighten screw
❶
.
* With the factory-adjusted value at the time of shipment, the
marker lines
C
are aligned.
