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Jack JK-T9280D User Manual

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JACK SEWING MACHINE CO.,LTD.
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JK-T9270D/9280D

Manual book

Table of Contents

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Jack JK-T9280D Specifications

General IconGeneral
BrandJack
ModelJK-T9280D
CategorySewing Machine
LanguageEnglish

Summary

Safety Instructions

Meaning of Safety Marks and Symbols

Explains the meaning of various safety marks and symbols used in the manual and on the machine.

Safety Precautions

Usage Environment

Details environmental conditions like temperature, humidity, and electrical interference for safe machine operation.

Installation Safety

Covers essential safety measures during the installation process, including electrical connections and handling.

Sewing Operations

General Sewing Safety

Emphasizes using safety devices, proper operation, and what to do in case of malfunctions.

Cleaning and Maintenance

Warning Labels

Ground Connection and Direction of Operation

Details the importance of proper grounding and how to identify the correct direction of operation.

Machine Identification and Specifications

Installation Procedures

Installing the Machine Head

Provides step-by-step instructions for mounting the sewing machine head onto the work table.

Lubrication Guide

Lubrication Procedure

Explains the importance of lubrication and provides detailed steps for applying oil to the machine.

Pre-Sewing Preparations

Needle and Threading Procedures

Installing the Needles

Provides instructions on how to properly install the sewing machine needles.

Upper Threading Procedure

Sewing Operation

Basic Sewing Steps

Describes the fundamental steps to start and perform sewing operations.

Thread Tension Adjustment

Adjusting Thread Tension

Explains how to adjust the tension of the upper and lower threads for good stitch formation.

Sewing Adjustments

Stitch Length Adjustment

Guides on how to adjust the stitch length for desired stitch density and appearance.

Puller Feed Adjustment

Standard Adjustments

Needle Bar Height Adjustment

Details how to adjust the needle bar height for proper needle positioning relative to the needle plate.

Needle and Looper Timing

Explains how to adjust the timing between the needle and looper for optimal stitch formation.

Looper Timing Clear of Needles

Details how to adjust the clearance between the looper and needle to prevent interference.

Feed Dog Height Adjustment

Explains how to adjust the feed dog height for proper fabric feeding.

Troubleshooting

Common Problems and Solutions

Lists common sewing problems, their potential causes, and solutions for quick repair.