MECHANICAL ADJUSTMENT
HEIGHT OF FEED DOG
CORRECT SETTING
LOWER THE PRESSER FOOT AND TURN THE BALANCE WHEEL TOWARD YOU UNTIL THE
NEEDLE BAR COMES TO THE HIGHEST POINT OF ITS TRAVEL.
IN THIS CONDITION, THE HEIGHT OF THE FEED DOG ABOVE THE NEEDLE PLATE SHOULD BE
0.75 mm - 0.90 mm.
IF IT IS NOT IN THE RANGE, MAKE AN ADJUSTMENT AS FOLLOWS:
TO ADJUST
1.
SET THE STITCH LENGTH DIL AT “4”. (PATTERN SELECTOR AIAL AT ANY POSITION.)
2.
LOWER THE PRESSER FOOT AND TURN THE BALANCE WHEEL UNTIL THE FEED DOG
COMES TO ITS HIGHEST POINT.
3.
LOOSEN THE SET SCREW A.
4.
TURN THE FEED LIFTING PIN TO ADJUST THE HEIGHT OF FEED DOG (0.75 mm - 0.90 mm).
5.
TIGHTEN THE SET SCREW A.
6.
TURN THE BALANCE WHEEL TO RECHECK THE HEIGHT OF FEED DOG.
* RAISE NEEDLE TO ITS HEIGHEST POSITION.
* MODEL JF1804 IS NOT EQUIPPED WITH ANY STITCH LENGTH DIAL.
FEED LIFING PIN
SET SCREW A
NEEDLE PLATE
0.75 mm - 0.90 mm
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