15
NEEDLE BAR HEIGHT
MECHANICAL ADJUSTMENT
TO CHECK:
WHEN THE TIP OF SHUTTLE HOOK MEETS THE LEFT SIDE OF THE NEEDLE IN ASCENDING
TRAVEL OF THE NEEDLE FROM ITS LEFT AND LOWEST POSITION, THE DISTANCE BETWEEN
THE TOP OF THE NEEDLE EYE AND THE TIP OF THE SHUTTLE HOOK SHOULD BE IN THE
RANGE OF 2.9 – 3.5 MM.
ADJUSTMENT PROCEDURE:
1.
REMOVE THE FACE PLATE.
2.
SET THE PATTERN SELECTOR DIAL AT " " (MAXIMUM ZIGZAG) WITH AND NEEDLE DROP
POSITION IS AT "LEFT".
3.
OPEN THE SHUTTLE COVER.
4.
REMOVE THE SHUTTLE RACE RING.
5.
TURN THE HANDWHEEL TOWARD YOU UNTIL THE TIP OF THE SHUTTLE HOOK MEETS THE
LEFT SIDE OF THE NEEDLE.
6.
LOOSEN THE NEEDLE BAR CONNECTING STUD SCREW (A).
7.
ADJUST THE HEIGHT OF THE NEEDLE BAR BY MOVING THE NEEDLE BAR UPWARD OR
DOWNWARD WITHOUT TURNING IT.
8.
TIGHTEN THE SCREW (A).
9.
ATTACH THE SHUTTLE RACE RING AND FACE PLATE.
10.
ATTACH THE FACE COVER.
SCREW (A)
NEEDLE BAR
2.9–3.5 MM
TIP OF SHUTTLE HOOK MEETS
LEFT SIDE OF NEEDLE
