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Brother LX27NT User Manual

Brother LX27NT
205 pages
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Table of Contents

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Brother LX27NT Specifications

General IconGeneral
TypeManual sewing machine
Sewing speed800
Stitch width5 mm
Feed dog type5 point
Product colorWhite
Buttonhole type1 Step
Number of programs-
Number of button holes1
Sewing machine functionsSewing
Automatic needle threaderYes
Number of stitch patterns27
Power supply typeElectric

Summary

Outline of Mechanism

Main mechanisms

Illustrates the main mechanical components of the sewing machine.

Driveline

Explains the movement of key mechanical parts and their connections.

Positions of electronic components

Shows the location of electronic parts within the sewing machine.

Control system block diagram

Visualizes the electrical control flow of the sewing machine.

Basic of Disassembly/Assembly

Main frame and Covers

Details the disassembly and assembly of the sewing machine's main body and covers.

Main motor unit

Covers the removal and installation of the sewing machine's main motor.

Feed unit

Explains the procedures for disassembling and assembling the feed mechanism.

Needle threading mechanism

Outlines the steps for disassembling and assembling the needle threading system.

Zigzag mechanism

Details the disassembly and assembly of the zigzag stitching mechanism.

Feed control mechanism

Covers the removal and installation of the feed control components.

Buttonhole and Pattern selecting mechanism

Explains the disassembly and assembly of buttonhole and pattern selection parts.

Upper shaft, Needle bar and Presser foot unit

Details the disassembly and assembly of the upper shaft, needle bar, and presser foot.

Application of Disassembly/Assembly

Main frame and Covers

Provides specific procedures for disassembling and assembling the main frame and covers.

Main motor unit

Details the step-by-step disassembly and assembly of the main motor unit.

Feed unit

Explains specific disassembly and assembly procedures for the feed unit components.

Needle threading mechanism

Outlines detailed steps for disassembling and assembling the needle threading mechanism.

Zigzag mechanism

Provides specific procedures for disassembling and assembling the zigzag mechanism.

Feed control mechanism

Details the step-by-step disassembly and assembly of the feed control mechanism.

Buttonhole and Pattern selecting mechanism

Covers specific disassembly and assembly for buttonhole and pattern selection.

Upper shaft, Needle bar and Presser foot unit

Explains detailed procedures for disassembling and assembling upper shaft, needle bar, and presser foot.

Adjustment

Removal of covers

Instructions for removing the front and rear covers for access.

Timing belt tension

How to adjust the timing belt tension for proper operation.

Motor belt tension

Steps for adjusting the motor belt tension.

Needle swing timing

Adjusting the needle bar oscillation timing.

Right needle drop position (zigzag stitch)

Adjusting the needle drop position for zigzag stitches.

Needle bar height

Setting the correct height of the needle bar.

Feed dog position (front/back and left/right)

Adjusting the feed dog's position.

Feed dog height

Adjusting the height of the feed dog.

Upper thread tension

Adjusting the tension of the upper thread.

Feed distance

Adjusting the distance the fabric is fed.

Lower thread tension

Adjusting the tension of the lower thread.

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