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General| Type | Overlock |
|---|---|
| Maximum Stitch Length | 4 mm |
| Free Arm | Yes |
| Stitch length | 1mm to 4mm |
| Stitch Options | Rolled hem |
| Buttonhole Styles | No |
| Presser Feet | rolled hem foot |
| Built-in Stitches | 2 |
| Weight | 14.3 lbs (6.5 kg) |
Troubleshooting steps when the sewing machine fails to run or increase speed.
Steps to diagnose and fix issues with the sewing machine's light.
Procedures to address excessive noise during sewing machine operation.
Troubleshooting steps for excessive vibration during sewing machine operation.
Procedures to follow if the stitching quality is unsatisfactory.
Steps to address poor sewing results, including thread insertion and tension.
Adjustments for sewing with heavy fabrics, focusing on stitch length and presser foot pressure.
Adjustments for sewing with light fabrics, focusing on presser foot pressure and stitch length.
Causes and fixes for skipped stitches, including needle insertion and clearances.
Troubleshooting common causes of thread breakage during sewing.
Addressing issues leading to unbalanced stitches, such as thread quality.
Causes and solutions for needle breakage, including clearances and timing.
Methods to prevent puckering in the fabric during sewing.
Diagnosing and fixing issues where the fabric does not feed correctly.
Addressing problems that cause uneven fabric feeding during sewing.
Adjustments and troubleshooting for the differential feed mechanism.
Solutions for issues related to the cutting knife, such as dullness or alignment.
Instructions for removing and attaching the machine's face plate.
Steps for removing and attaching the belt cover.
Procedures for removing and attaching the machine base.
Instructions for removing and attaching the side cover.
Steps for removing and attaching the looper cover unit.
Instructions for removing and attaching the front panel unit.
Information about the distance gauge and its uses.
Details on the thickness gauge and its applications.
Information on the needle gauge and its functions.
Description of the lower looper height gauge.
Guidance on effectively using the servicing gauge for various adjustments.
Procedure to adjust the needle bar height to the correct specification.
Steps to adjust the presser bar height correctly.
Instructions for adjusting the height of the feed dogs.
Procedure to set the correct timing for the feed dogs.
How to adjust the timing of the upper knife.
Steps to adjust the height of the lower looper.
Adjusting clearance between needles, lower looper, and needle guards.
Adjusting the position of the front needle guard for proper clearance.
Setting clearance between the needle and the fixed needle guard.
Procedure for adjusting the lower looper timing.
Adjusting the position of the upper looper for correct operation.
Synchronizing the timing of the upper and lower loopers.
Adjusting the clearance between the upper and lower loopers.
Setting the clearance between the needle and the upper looper.
Adjusting the position of the upper and lower knives.
Adjusting the position of lower looper thread guides.
Setting and adjusting the differential feed ratio.
Adjusting the clearance between main and sub feed dogs.
Adjusting the stitch length for proper sewing.
Procedure to correct lateral play in the main shaft.
Checking and adjusting the belt tension.
Steps for replacing the machine socket and cord connectors.
Instructions for changing the sewing machine lamp.
Recommended oiling points and frequency for the sewing machine.
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