Service Manual
Page 3
... (B7910) 39 12. Needle bar mechanism 29 6. Spring installation (B7910) 39 11. Sensor position adjustment (B7910) 41 14. Rotary hook mechanism 28 4. Synchronizers 48 GAUGE PART CODE 49 TROUBLESHOOTING GUIDE 53 Servo solenoid adjustment 37 9. Potentiometer adjustment (87910) 38 10. Photo-cell and reflection sensor replacement (37910) 46 4. Machine covers 30...
... (B7910) 39 12. Needle bar mechanism 29 6. Spring installation (B7910) 39 11. Sensor position adjustment (B7910) 41 14. Rotary hook mechanism 28 4. Synchronizers 48 GAUGE PART CODE 49 TROUBLESHOOTING GUIDE 53 Servo solenoid adjustment 37 9. Potentiometer adjustment (87910) 38 10. Photo-cell and reflection sensor replacement (37910) 46 4. Machine covers 30...
Service Manual
Page 10
CORRECTION 1 + o AUTO _ 10 sLow i START TACK STITCHES 00 0 1. Pocket sewing Ply sensor (Thin part) (Thick part) B (1) Press the SET START key 0. Its indicator blinks, then goes off. (4) Press one of seam H, trim the thread and press the INPUT key G. (16) Press ... stitches in seam B, lift the presser foot and press INPUT key 0. (9) Press the MARGIN key O. Its indicator blinks, then goes on . (2) Set the material (thin part of the body) under the presser foot and press the PLY SENSOR key 61. Its indicator goes on . A (3) Set the pocket (thick...
CORRECTION 1 + o AUTO _ 10 sLow i START TACK STITCHES 00 0 1. Pocket sewing Ply sensor (Thin part) (Thick part) B (1) Press the SET START key 0. Its indicator blinks, then goes off. (4) Press one of seam H, trim the thread and press the INPUT key G. (16) Press ... stitches in seam B, lift the presser foot and press INPUT key 0. (9) Press the MARGIN key O. Its indicator blinks, then goes on . (2) Set the material (thin part of the body) under the presser foot and press the PLY SENSOR key 61. Its indicator goes on . A (3) Set the pocket (thick...
Service Manual
Page 11
...Set the margin-to-seam width. (11) After sewing to material edge position C and the thread is turned on . (2) Set the material (thin part of the body) under the presser A foot and press the PLY SENSOR key 0. The programmed pattern can now be sewn automatically. 3. d Body Reflection... sensor (1) Press the SET START key 0. Its indicator blinks, then goes on . (3) Set the material (thick part of the PROGRAMME keys 0. (5) Press the NO. OF STITCH key 0. 2) Sew to be sewn automatically. - 10 - Its indicator blinks, B then goes off...
...Set the margin-to-seam width. (11) After sewing to material edge position C and the thread is turned on . (2) Set the material (thin part of the body) under the presser A foot and press the PLY SENSOR key 0. The programmed pattern can now be sewn automatically. 3. d Body Reflection... sensor (1) Press the SET START key 0. Its indicator blinks, then goes on . (3) Set the material (thick part of the PROGRAMME keys 0. (5) Press the NO. OF STITCH key 0. 2) Sew to be sewn automatically. - 10 - Its indicator blinks, B then goes off...