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Brother XQ2700 User Manual

Brother XQ2700
205 pages
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Table of Contents

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Brother XQ2700 Specifications

General IconGeneral
BrandBrother
ModelXQ2700
CategorySewing Machine
LanguageEnglish

Summary

Outline of Mechanism

Main mechanisms

Detailed explanation of the primary functional parts of the sewing machine.

Driveline

Description of the transmission of power and motion within the machine's mechanisms.

Positions of electronic components

Identification and location of electronic parts within the sewing machine.

Control system block diagram

Visual representation of the machine's electrical and control system interactions.

Basic of Disassembly/Assembly

Main frame and Covers

Procedures for removing and installing the machine's main housing and covers.

Main motor unit

Steps for disassembling and assembling the primary motor component.

Feed unit

Instructions for the disassembly and assembly of the fabric feeding mechanism.

Needle threading mechanism

Details on how to take apart and reassemble the needle threader.

Zigzag mechanism

Steps for the disassembly and assembly of the zigzag stitch mechanism.

Feed control mechanism

Procedures for disassembling and assembling the feed control system.

Buttonhole and Pattern selecting mechanism

Instructions for the disassembly and assembly of the buttonhole and pattern selection parts.

Upper shaft, Needle bar and Presser foot unit

Steps for disassembling and assembling the upper shaft, needle bar, and presser foot assembly.

Application of Disassembly/Assembly

Main frame and Covers

Practical application of disassembly and assembly for the machine's housing.

Main motor unit

Specific application of disassembly and assembly for the main motor.

Feed unit

Practical application of disassembly and assembly for the feed unit.

Needle threading mechanism

Application of disassembly and assembly for the needle threading components.

Zigzag mechanism

Practical application of disassembly and assembly for the zigzag mechanism.

Feed control mechanism

Application of disassembly and assembly for the feed control mechanism.

Buttonhole and Pattern selecting mechanism

Practical application of disassembly and assembly for buttonhole and pattern parts.

Upper shaft, Needle bar and Presser foot unit

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

Adjustment

Timing belt tension

Procedure for adjusting the tension of the timing belt for optimal operation.

Motor belt tension

Steps for adjusting the tension of the motor drive belt.

Needle swing timing

Adjustment procedure for synchronizing the needle's lateral movement.

Three point needle drop

Adjusting the needle's drop position for consistent stitch formation.

Feed dog height

Procedure for setting the correct vertical height of the feed dogs.

Upper thread tension

Steps for adjusting the tension of the upper thread.

Feed distance

Adjustment procedure for controlling the fabric feed length.

Lower thread tension

Steps for adjusting the tension of the lower thread.

Failure Investigation for Electronic Parts

Sewing lamp does not light

Troubleshooting steps for when the machine's sewing light fails to illuminate.

Main motor does not turn or Rotation speed is slow

Diagnosis and solutions for motor issues like non-operation or slow speed.

Special Instructions of Wiring

Motor 3P supply assy

Specific instructions for connecting the wiring of the 3-phase motor supply unit.

LED lamp

Guidelines for the proper wiring and connection of the LED sewing lamp.

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