MECHANICAL ADJUSTMENT
HOOK TIMING
CORRECT SETTING
THE STANDARD HEIGHT OF NEEDLE POINT FROM ITS LOWEST POINT OF TRAVEL SHOULD BE
IN THE RANGE OF 1.45 MM - 1.95 MM WHEN THE TIP OF SHUTTLE HOOK MEETS EXACTLY THE
LEFT SIDE OF NEEDLE AT LEFT NEEDLE POSITION.
TO ADJUST
1.
SET THE SELECTOR DIAL AT “
”.
NOTE:
FOR MODEL 2022 ...
SET THE PATTERN SELECTOR DIAL AT “
”.
SET THE WIDTH SELECTOR DIAL AT “ 0 ”.
2.
REMOVE THE FRONT PANEL COVER UNIT.
3.
REMOVE THE MOTOR.
4.
REMOVE THE SHUTTLE RACE RING.
5.
TURN THE BARANCE WHEEL TOWARD YOU UNTIL THE TIP OF SHUTTLE HOOK MEETS
THE LEFT SIDE OF NEEDLE.
6.
LOOSEN THW LOWER SHAFT CRANK ARM SET SCREW (2 PCS.).
7.
WHILE HOLDING THE SHUTTLE HOOK NUT TO TURN, TURN THE BALANCE WHEEL
TOWARD YOU UNTIL NEEDLE COMES TO ITS LOWEST POSITION.
THEN, FURTHER TURN THE BALANCE WHEEL TO RAISE THE NEEDLE ABOUT 1.7 MM
FROM ITS LOWEST POSITION.
8.
TIGHTEN THE SET SCREW.
9.
TURN THE BARANCE WHEEL TOWARD YOU TO CHECK IF THE HEIGHT IS THE RANGE OF
1.45 MM -1.95 MM.
IF IT IS NOT IN THE RANGE, REPEAT THE ABOVE PROCEDURE.
10.
ATTACH THE SHUTTLE RACE RING.
11.
ATTACH THE MOTOR AND ADJUST THE BELT TENSION.
12.
ATTACH THE FRONT PANEL COVER UNIT.
LOWEST POSITION
1.45 mm - 1.95 mm
LOWER SHAFT CRONK ARM
LOWER SHAFT
SET SCREW (2 PCS.)
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