13
7-5 Position of the spreader thread guide (WX8842,8842-1)
The clearance between spreader thread guide B and
spreader A should be 0.5~0.8mm. When the spreader
is at the extreme right end of its travel, point (a) of the
spreader thread carrying notch should be aligned with
the center line of the slot of spreader thread guide B.
When the needle bar is at the bottom of its stroke, the
clearance between the spreader thread guide and
spreader thread guide C should be 1mm and the eyelet
of spreader thread
guide C should be
approximately 0.5mm
left to the center line
of the slot of spreader
thread guide B.
To make the above
adjustment, loosen
two screws D and
screw E and move
each thread guide up
or down, left or right,
or front or back as
required.
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8
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FEED DOGS & STITCH LENGTH
8-1 Feed dog height & tilt
■
Height
When the feed dogs are at the top of their stroke, the
feed dog teeth should be parallel with and 0.8~1mm
above the top surface of the needle plate.
To make this adjustment, loosen screw A and move the
main and differential feed dogs up or down.
From the library of: Superior Sewing Machine & Supply LLC
