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General| Type | Computerized Sewing Machine |
|---|---|
| Stitch Options | 50 |
| Buttonhole Styles | 3 |
| Maximum Stitch Width | 7mm |
| Maximum Stitch Length | 5mm |
| LCD Screen | Yes |
| Needle Threader | Automatic |
| Drop Feed | Yes |
| Adjustable Stitch Length | Yes |
| Adjustable Stitch Width | Yes |
| Reverse Stitch | Yes |
| Free Arm | Yes |
| Needle Positions | Variable |
| Built-in Memory | No |
| Speed Control | Variable |
| Bobbin Type | Top Drop-in |
Instructions for removing and attaching the face cover of the sewing machine.
Instructions for removing and attaching the free-arm cover of the sewing machine.
Steps to remove and attach the front cover (part 1) of the sewing machine.
Steps to remove and attach the front cover (part 2) of the sewing machine.
Instructions for removing and attaching the rear cover of the sewing machine.
Procedure to adjust the distance between the presser foot and needle plate to 6.0 mm.
Setting the needle drop position for optimal stitch placement and clearance.
Aligning the rotary hook with the needle at the correct point in its cycle.
Procedure for replacing a damaged or worn hook assembly.
Adjusting the needle bar height for correct hook timing and needle eye clearance.
Setting the clearance between the needle and hook tip to -0.1 to +0.05 mm.
Adjusting the highest position of the feed dog to 0.80-0.90 mm from the needle plate.
Adjusting the top thread tension to be between 65 and 80g.
Diagram and list of connectors for Circuit Board-A.
Steps to remove and attach Circuit Board-A.
Procedure for setting Circuit Board A after installation.
Instructions for removing and attaching the driving motor.
Steps to remove and attach the switching regulator unit.
Diagnostic test for LCD display, buzzer, and sewing lamp functionality.
Diagnostic test for the machine's buttons.
Diagnostic test for the buttonhole sensor and lever.
Diagnostic test for the bobbin winder switch.
Diagnostic test for the upper shaft positioning sensor.
Diagnostic tests for the zigzag motor and feed motor.
Diagnostic test for the foot control operation.
Diagnostic test for the slide volume control.
Diagnostic test for the DC motor operation.
Procedure to adjust the buttonhole lever guide.
Procedure to adjust the buttonhole sensor position.
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