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General| Brand | Jack |
|---|---|
| Model | JK-2284 |
| Category | Sewing Machine |
| Language | English |
Steps to attach the oil pan to the sewing machine base.
Procedure for fitting the hinge to the machine head and table.
Instructions for using a needle positioner for improved sewing efficiency.
Instructions for lubricating the sewing machine.
Procedure for initial lubrication of a new or long-unused sewing machine.
Step-by-step guide for inserting and removing the bobbin case.
Guide on adjusting the tension of the needle thread.
Instructions for adjusting the tension of the thread take-up spring.
Steps to adjust the tension of the bobbin thread.
Procedure for adjusting the zigzag width using the knob and lever.
Notes on adjusting zigzag width for specific models and parts replacement.
Procedure for setting the stitch length using the dial.
How to perform reverse feed stitching using the lever.
How to adjust the height of the feed dog.
How to adjust the inclination of the feed dog.
Steps for positioning the hook and confirming needle-to-hook timing.
Procedure for adjusting the needle guard to prevent contact with the hook.
Steps to attach the connecting rod to the pedal mechanism.
How to adjust the pedal's inclination.
Adjusting the needle's stop position after thread trimming.
Adjusting the needle's lowest stop position.
Instructions on how to use the one-touch reverse feed switch lever.
How to adjust the height of the reverse feed switch lever for convenience.
Setting the initial position of the moving knife.
Adjusting the timing for the thread trimming mechanism.
Adjusting the position of the needle thread feeding wire.
Adjusting the stroke of the needle thread feeding wire.
Steps for removing and installing the pattern cam.
Guidelines for applying grease to cam components.
Adjusting the presser foot wings for even material feed.
Procedure for adjusting the stitch length on the 2285N model.
Table detailing motor pulley diameters, part numbers, speeds, and belt lengths.
Specific pulley and belt requirements for machines with thread trimmers.
Guide to identifying and resolving common sewing issues like thread breakage and stitch skipping.
Procedure for verifying and setting the correct supply voltage.
Steps for mounting and connecting the electrical box.
Instructions for safely removing and replacing the machine's knives.
Steps for safely replacing a blown power fuse.
How to adjust the height of the cutting knife.
How to adjust the pressure of the cutting knife.
Guide on how to adjust the installation of the knife start switch.
Instructions on how to operate the sewing machine's pedal.
Diagrams and part lists for general machine components like frame, shafts, and covers.
Diagrams and part lists for parts exclusive to specific models (e.g., 2286N, 2288N, 2284N).
Explanation of codes and symbols used in the parts list for proper reference.
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