−41 −
MFC
Standard Adjustment
3 Position of spreader
™ Height of the presser foot is 10.5 ± 0.5 mm.
™ When the spreader is in the extreme left
position, the distance between the center of
the left needle and the blade point of the
spreader is 5.5 mm ±0.1 mm.
™ When the spreader returns to the right, the
clearance between the spreader and the
left needle is 0.3 to 0.5 mm.
4 Fixing spreader thread guide
™ When the spreader is in the extreme right
position, the blade top should be between
the left end and the middle of the groove of
the fixing spreader thread guide.
™ The height is 0.8 to 1.2 mm from the upper
face of the spreader.
5 Needle clamp spreader thread guide
™ When the needle bar is in the lowest position,
the clearance between the needle clamp
spreader thread guide and the upper face
of the fixing spreader thread guide is 4 ± 0.5
mm.
™ The center of the thread guide hole aligns
with the left end of the groove of the fixing
spreader thread guide.
9) Spreader
1 Timing
Just when the needle descends 2.5 mm from
the highest point of the needle bar, the spreader
begins to return from the extreme left position.
Descend
Highest point
2.5 ±0.1 mm
Return
Direction of cloth feed
19 ±0.1 mm
2 Stroke
5.5 ±0.1 mm
10.5 ±0.5 mm
Throat plate
Left needle
0.3 to
0.5 mm
Return
Spreader
Extreme right
position
Groove
0.8 to
1.2 mm
Blade top should be
between the left end and
the middle of the groove.
Fixing spreader thread guide
4 ±0.5 mm
Needle clamp spreader thread guide
Show spreader at
extreme right position
when setting height
From the library of: Diamond Needle Corp
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