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Standard Adjustment
(23) Alternate vertical dial
1
2
8±0.1 mm
1) Installing position of the detection switch of the amount of alternate vertical movement
Alternate
vertical dial
Detection switch of
amount of alternate
vertical movement
Bushing
Convex
section
Top cover
Spring
Pin
Hole of section A
Red
Green
White
Black
Amount of alternate vertical
movement of the walking foot and
presser foot
Less than 2.5 mm
2.5 mm to less than 4 mm
4 mm to less than 4.75 mm
4.75 mm to less than 6.5 mm
Stitch length :
6 mm or less
3000 rpm
2400 rpm
2000 rpm
1800 rpm
Stitch length :
More than 6 mm
and 9 mm or less
2000 rpm
2000 rpm
2000 rpm
1800 rpm
Scale of alternate vertical dial
1 to 2.5
2.625 to 4
4.125 to 4.75
4.875 to 6.5
Switch (upper)
(Red and green lines)
OFF
OFF
ON
ON
Switch (lower)
(White and black lines)
OFF
ON
ON
OFF
Sewing speed of LU-1560N-7 and LU-1561N-7
Amount of alternate vertical
movement of the walking foot and
presser foot
Less than 2.5 mm
2.5 mm to less than 4 mm
4 mm to less than 4.75 mm
4.75 mm to less than 6.5 mm
Stitch length :
6 mm or less
2500 rpm
2200 rpm
1800 rpm
1600 rpm
Stitch length :
More than 6 mm
and 9 mm or less
1800 rpm
1800 rpm
1800 rpm
1600 rpm
Sewing speed of LU-1510N-7 and LU-1511N-7
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