Singer XL-420 Service Manual page 47

Service Manual
SEC.21-2 Sewing machine test mode (2)
＊If embroidery unit is attached, this will be a test mode for embroidery unit.
Contents of Test mode
Mode 1 Needle position：LeftCenterRightLeft
Feed：Zero
Mode 2 Needle position：Center
Feed：Zero
Mode 3 Needle position：Center
Feed：11 stitches forward in 2mm and 11 stitches backward in 2mm then stops
Mode 4 for upper thread detection
Needle position：Center
Feed：0.5mm forward
Deactivated top thread detection
Mode 6 for aging
Needle position：7mm
Feed：2.5mm forward, 2.5mm reverse
Mode 7 for checking main shaft torque
No.7
Original issue
May 2014
Page 47／64
Model
XL-420
| 47