ā 30 ā
(11) Presser adjustment
1) Adjustment of amount of rise of presser
The standard amount of rise is 6.5mm for the standard class of the presser
. (Maximum amount of rise:
9 mm)
In standard positioning, the presser
begins to rise faster by 3.2mm above the upper face of the throat
plate before the upper feed roller begins to rise.
(Caution) 35800BWW-DWW: The maximum amount of rise is 10mm for extra-heavy materials.
2) Adjustment of presser bar pressure
Proper pressure of the presser shall be applied to the material while it is sewn.
Turn the pressure adjusting nut clockwise and counterclockwise to adjust pressure.
6.5mm
0.8mm
A
B
1.6mm
C
D
6.5mm
Right direction
Standard Adjustment