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10. INSTALLING OPTIONAL PARTS
10. ANBRINGEN VON ZUBEHORTEILEN
10. INSTALLATION DES PIECES EN OPTION
10. INSTALACION DE PIEZAS OPCIONALES
Contact A (white)
==
Contact B (red)
1110 mm
N
2. Switch the air tubes as shown in the illustration.
3. Set DIP switch A-4 to ON. (Refer to 9-13 on page 65.)
4. The knee switch plug uses contact A (white). The wrapper opens or closes each time the knee switch is pressed
(alternate operation).
NOTE
If the knee switch has been pressed to open the wrapper, the wrapper will not close even when the treadle is pressed
forward.
However, after thread trimming has been carried out, the wrapper is reset, and it will then open and close in con-
junction with the operation of the presser foot when the treadle is depressed.
In addition, when the power supply is turned on, the wrapper can be operated in conjunction with the presser foot
by depressing the treadle.
DB3-B775, B776
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