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General| Brand | Mitsubishi Electric |
|---|---|
| Model | LU2-4400-B0B |
| Category | Sewing Machine |
| Language | English |
General safety guidelines for operating the sewing machine.
Precautions related to oiling and initial operation checks.
Guidelines for using the machine in different environmental conditions.
Instructions for filling the oil reservoir to the correct level.
Guidance on replenishing oil for new or long-unused machines.
Checking oiling condition during operation and cleaning the oil tank.
Adjusting the oil flow to the rotating hook mechanism.
Instructions for installing safety belt covers.
Warnings and precautions during machine operation.
Correct procedure for installing single and double needles.
Steps for winding thread onto the bobbin, including tension and amount.
Recommendations for choosing thread twist for needles and bobbin.
Step-by-step guide for threading needle threads through guides.
Adjusting stitch length and performing backstitching using levers.
How to place bobbins into the hooks correctly.
Procedure for threading bobbin threads through the opener.
Adjusting the tension of the bobbin thread.
Achieving balanced thread tension between needle and bobbin.
Adjusting the tension of the needle threads.
Adjusting the pressure applied by the presser foot to the fabric.
Synchronizing the hook and needle movements for proper stitching.
Setting the correct height for the feed dog for proper fabric feeding.
Aligning the timing belt for hook and take-up lever synchronization.
Adjusting the gap between the opener and hook for thread handling.
Synchronizing needle and feed dog movements for stitch formation.
Understanding and setting the safety clutch function.
Adjusting the upper feed length for even fabric feeding.
Adjusting the length of forward and backward stitches.
Adjusting working height of presser feet for different fabrics.
Adjusting alternating movement of presser feet for different fabrics.
Installing the eccentric cam for presser foot movement.
Fine-tuning the eccentric cam for optimal performance.
Detailed technical specifications for LU2-4400-B0B and LU2-4420-B0B.
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