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16. ADJUSTING THE AMOUNT OF TRAVEL OF THE DOUBLE
CHAINSTITCH LOOPER
The double chainstitch looper makes elliptic move-
ment. Adjust the amount of front/rear travel of the
double chainstitch looper following the steps of proce-
dure described below where necessary.
❶
❷
❸
⊖
⊕
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
1) Open rear cover ❶ of the sewing machine.
2) Loosen the screw ❸ slightly.
3) Turn the screw ❷ to adjust.
To increase the amount of travel, turn to ⊕ direc-
tion.
To decrease the amount of travel, turn to ⊖ direc-
tion.
4) Tighten the screw ❸ after the adjustment.
5) At the end of the adjustment, close rear cover ❶.
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