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TO CHECK:
THE HEIGHT OF THE NEEDLE POINT FROM ITS LOWEST POINT OF TRAVEL
SHOULD BE IN THE RANGE OF 1.4-2.0 MM WHEN THE TIP OF THE SHUTTLE
HOOK JUST MEETS THE LEFT SIDE OF THE NEEDLE AT THE LEFT NEEDLE
POSITION.
ADJUSTMENT PROCEDURE:
1.
SET THE PATTERN SELECTOR DIAL AT " ".
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 LOWER SHAFT CRANK ARM SCREWS (A).
7.
WHILE HOLDING THE SHUTTLE HOOK SO IT DOESN'T TURN, TURN THE
HANDWHEEL TOWARD YOU UNTIL THE NEEDLE COMES TO ITS LOWEST
POSITION.
THEN, FURTHER TURN THE HANDWHEEL TO RAISE THE NEEDLE ABOUT 1.7 MM
FROM ITS LOWEST POSITION.
8.
TIGHTEN THE SETSCREWS (A).
9.
TURN THE HANDWHEEL TOWARD YOU TO CHECK IF THE HEIGHT IS IN THE
RANGE OF 1.4-2.0 MM.
IF IT IS NOT IN THIS RANGE, REPEAT THE ABOVE PROCEDURE.
10.
ATTACH THE SHUTTLE RACE RING.
NEEDLE TIMING TO SHUTTLE
MECHANICAL ADJUSTMENT
SCREWS (A)
LOWEST POSITION
1.4-2.0 MM
