15
MECHANICAL ADJUSTMENT
NEEDLE DROP POSITION
TO CHECK:
WHEN THE NEEDLE SWINGS AT THE MAXIMUM ZIGZAG WIDTH, THE DISTANCE
BETWEEN BOTH ENDS OF THE NEEDLE HOLE ON THE NEEDLE PLATE AND THE NEEDLE
DROP POSITIONS, SHOULD BE EQUAL.
IF NOT, MAKE THE FOLLOWING ADJUSTMENTS:
ADJUSTMENT PROCEDURE:
1.
REMOVE THE FACE COVER. (SEE PAGE 8.)
2.
SET THE PATTERN SELECTOR DIAL AT THE MAXIMUM ZIGZAG WIDTH.
3.
LOOSEN THE SET SCREW.
4.
TURN THE ECCENTRIC PIN TO ADJUST THE NEEDLE DROP POSITION.
5.
TIGHTEN THE SET SCREW.
NOTE:CHECK THE HOOK TIMING AFTER THIS ADJUSTMENT.
ECCENTRIC PIN
SET SCREW
BOTH CLEARANCE SHOULD BE EQUAL