28
LOWER SHAFT SHIELD PLATE POSITION ADJUSTMENT
WHEN THE MACHINE IS SET FOR ZIGZAG STITCH, THE NEEDLE SHOULD START TO SWING 7.7 TO 8.7 mm
ABOVE THE SURFACE OF THE NEEDLE PLATE.
1 WHILE PRESSING THE NEEDLE UP/DOWN AND
LOCK STITCH BUTTONS, TURN THE POWER
SWITCH ON.
THE LCD SCREEN DISPLAY “FACTORY ADJUST”,
THEN ADJUSTING SCREEN WILL APPEAR.
TURN THE JOG DIAL TO SELECT “07. Phase Check”.
PRESS THE CONFIRM BUTTON (ENTER KEY).
2 TURN THE HANDWHEEL TOWARD YOU TO RAISE
THE NEEDLE AT 8.2 mm ABOVE THE SURFACE OF
THE NEEDLE PLATE.
3 REMOVE THE MACHINE BASE AND LOOSEN THE
SETSCREW (A) OF THE LOWER SHAFT SHIELD
PLATE. TURN SHIELD PLATE UNTIL THE SENSOR
SIGNAL CHANGES FROM “--”
q
TO “BM”
w
.
4 POSITION THE LOWER SHAFT SHIELD PLATE IN
THE CENTER OF SLIT OF THE LOWER SHAFT
SENSOR (SEE FIG. I).
TIGHTEN THE SETSCREW (A).
5 ATTACH THE MACHINE BASE.
MECHANICAL ADJUSTMENT
0.5–1.5mm
EVEN
LOWER SHAFT
SENSOR
LOWER SHAFT SHIELD PLATE
7.7 – 8.7 mm
PRESSER FOOT
NEEDLE #14
q
w
SETSCREW (A)
SENSOR (FEED)
SENSOR
(ZIGZAG AND
CUTTER)
FIG. I
LOWER SHAFT
JOG DIAL
CONFIRM BUTTON (ENTER KEY)
Содержание MC7700 QCP
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