−8 −
Standard Adjustment
(7) Detecting the origin of the stitch width stepping motor
When the needle bar rocking cam is located on the stitch base line side and the needle enters in the center
of the needle hole in the throat plate (when stitch width amount is “0” mm), the stitch width origin sensor
should detect the origin detecting plate.
(Caution) The stitch width stepping motor is the one with blue connector. (Lower side)
Perform the adjustment when the stitch base line origin sensor is in the origin.
(8) Backlash of the feed gear
Backlash : 0 to 0.05 mm
Stitch width
origin sensor
Feed gear
Origin detecting plate
Feed stepping motor
Setscrews
Feed shaft
Small
↑
Backlash
↓
Large
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