MECHANICAL ADJUSTMENT
THREAD (POLYESTER
SEWING THREAD (#50
WHITE))
@
PULL THE THREAD AT A SPEED OF
APPROX. 110 MM/SEC. IN THE DIRECTION
OF ARROW.
SHAFT
THE STANDARD TENSION SHOULD BE 75 TO 90 GRAMS WHEN THE TENSION DIAL IS SET AT "A" (AUTO),
MEASURED WITH A #50 WHITE POLYESTER THREAD BEING PULLED AT APROXIMATELY 110 MM/SEC.
IF THE TENSION IS OUTSIDE THE STANDARD RANGE, ADJUST AS FOLLOWS:
ADJUSTMENT:
1. SET THE THREAD TENSION DIAL TO "A" AND CHECK THE THREAD TENSION.
2. REMOVE THE FACE COVER (SEE PAGE 4).
3. IF THE TENSION IS OUTSIDE THE STANDARD RANGE, TURN THE DIAL TO FIND A POSITION WHERE
THE CORRECT TENSION IS OBTAINED.
4. INSERT A SCREWDRIVER INTO THE SLIT ON THE SHAFT AND PUSH IT UNTIL THE TENSION DIAL IS
DISENGAGED FROM THE SHAFT.
5. WHILE HOLDING THE SHAFT IN PLACE WITH THE SCREWDRIVER, TURN THE DIAL BACK TO POSITION
"A" AND ENGAGE IT WITH THE SHAFT.
6. REMOVE THE SCREWDRIVER.
7. CHECK THE THREAD TENSION TO CONFIRM THAT IT IS CORRECT, THEN INSTALL THE FACE COVER.
NEEDLE THREAD TENSION
SET THE THREAD TENSION
DIAL (AT AUTO)
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