TO ADJUST THE CLEARANCE BETWEEN
THE NEEDLES AND THE LOWER
LOOPER/NEEDLE GUARDS (1 of 3)
CORRECT SETTING:
BOTH RIGHT AND LEFT NEEDLES SHOULD HAVE AN EQUAL CLEARANCE FROM THE FRONT
EDGE OFTHE NEEDLE HOLES ON THE NEEDLE PLATE.
THE STANDARD CLEARANCE BETWEEN THE LEFT AND RIGHT NEEDLE AND THE TIP OF THE
LOWER LOOPER IS 0 MM TO 0.05 MM.
THE STANDARD CLEARANCE BETWEEN THE NEEDLE AND THE REAR NEEDLE GUARD IS 0 MM TO
0.2 MM.
THE ABOVE STANDARD CLEARANCE ALLOWS THE NEEDLE TO SLIGHTLY TOUCH THE FRONT
NEEDLE GUARD.
TO ADJUST:
1. REMOVETHE LOOPER COVER UNIT, FACE PLATE UNIT, BACK COVER UNIT, TOP COVER, FRONT
COVER UNIT, PRESSER FOOT AND NEEDLES.
2. BEFORE LOOSENING SETSCREW (C), ATTACH THE NEEDLE GAUGE #787-G02 TO PREVENT
CHANGE OF NEEDLE BAR HEIGHT DURING THE ADJUSTMENT.
ATTACH TWO #11 NEEDLES ON THE NEEDLE CRAMP. LOOSEN SETSCREW (C).
ADJUSTTHE CLEARANCES BETWEEN NEEDLES AND THE FRONT EDGE OFTHE NEEDLE HOLES
OF THE NEEDLE PLATE EQUAL BYTURNING THE NEEDLE BAR IN THE (D) OR (E) DIRECTION.
KEEP PUSHING UP THE NEEDLE BAR TO PREVENT CHANGE OF NEEDLE BAR HEIGHT WHILE
ADJUSTING.
RETIGHTEN SETSCREW (C) AND REMOVE THE NEEDLE GAUGE.
NEEDLE CLAMP
SETSCREW (C)
NO CLEARAN(
NEEDLE GAUGE
(787-G02) (D)
LOWER LOOPER
(E)
NEEDLE BAR LOWER
/ NEEDLE
NEEDLE(L _- NEEDLE(R)
4 EOUALCLEARANCE
14
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