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Brother GS3710 User Manual

Brother GS3710
205 pages
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Table of Contents

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Brother GS3710 Specifications

General IconGeneral
TypeMechanical
Number of Stitches37
Buttonhole Styles1
Sewing Speed800 stitches per minute
Free ArmYes
Needle ThreaderYes
Adjustable Stitch LengthYes
Adjustable Stitch WidthYes
Voltage220-240V
Power70W
Bobbin TypeDrop-in bobbin

Summary

General Information

Safety Precautions

Important safety instructions for operating and maintaining the sewing machine.

Outline of Mechanism

Main Mechanisms Overview

Overview of the primary mechanical components of the sewing machine.

Driveline Operation

Explanation of the machine's drive system and component movements.

Electronic Component Locations

Identifies the placement of electronic parts within the machine.

Control System Block Diagram

Visual representation of the machine's control system logic.

Basic Disassembly and Assembly

Main Frame and Cover Disassembly

Procedures for disassembling the main frame and covers.

Main Motor Unit Disassembly

Procedures for disassembling the main motor unit.

Feed Unit Disassembly

Procedures for disassembling the feed unit.

Needle Threading Mechanism Disassembly

Procedures for disassembling the needle threading mechanism.

Zigzag Mechanism Disassembly

Procedures for disassembling the zigzag mechanism.

Feed Control Mechanism Disassembly

Procedures for disassembling the feed control mechanism.

Buttonhole & Pattern Mechanism Disassembly

Procedures for disassembling buttonhole and pattern mechanisms.

Upper Shaft, Needle Bar & Presser Foot Unit Disassembly

Procedures for disassembling the upper shaft, needle bar, and presser foot unit.

Upper Shaft, Needle Bar & Presser Foot Unit Assembly

Procedures for assembling the upper shaft, needle bar, and presser foot unit.

Main Frame and Cover Assembly

Procedures for assembling the main frame and covers.

Application of Disassembly/Assembly

Main Frame & Cover Disassembly Application

Detailed application of disassembly for main frame and covers.

Main Motor Unit Disassembly Application

Detailed application of disassembly for the main motor unit.

Feed Unit Disassembly Application

Detailed application of disassembly for the feed unit.

Needle Threading Mechanism Disassembly Application

Detailed application of disassembly for the needle threading mechanism.

Zigzag Mechanism Disassembly Application

Detailed application of disassembly for the zigzag mechanism.

Feed Control Mechanism Disassembly Application

Detailed application of disassembly for the feed control mechanism.

Buttonhole & Pattern Mechanism Disassembly Application

Detailed application of disassembly for buttonhole and pattern mechanisms.

Upper Shaft, Needle Bar & Presser Foot Unit Disassembly Application

Detailed application of disassembly for the upper shaft, needle bar, and presser foot unit.

Machine Adjustments

Cover Removal for Adjustment

Steps to remove machine covers prior to making adjustments.

Needle Point Damage Inspection

Procedure for inspecting the needle point for damage.

Timing Belt Tension Adjustment

Adjusting the timing belt tension for proper operation.

Motor Belt Tension Adjustment

Adjusting the motor belt tension for correct speed and power.

Needle Bar Supporter Stopper L Position Adjustment

Adjusting the position of the stopper L for the needle bar supporter.

Needle Bar Supporter Stopper R Position Adjustment

Adjusting the position of the stopper R for the needle bar supporter.

Needle Swing Timing Adjustment

Adjusting the timing of the needle's oscillating movement.

Three Point Needle Drop Adjustment

Adjusting needle drop positions for consistent sewing.

Left/Right Needle Clearance Adjustment

Adjusting clearance between needle and hook.

Right Needle Drop Position (Zigzag Stitch) Adjustment

Adjusting needle drop for zigzag stitches.

Needle Drop Position to Presser Foot Hole (Front/Back) Adjustment

Adjusting needle drop relative to presser foot hole.

Inner Rotary Hook Plate Position Adjustment

Adjusting the position of the inner rotary hook plate.

Needle Bar Rising Adjustment

Adjusting needle bar upward movement from lowest point.

Needle Bar Height Adjustment

Adjusting the vertical position of the needle bar.

Needle Clearance Adjustment

Adjusting clearance between needle and outer rotary hook.

Left Needle Drop Position Adjustment (Straight & Zigzag)

Adjusting left needle drop for straight and zigzag stitches.

Feed Dog Position Adjustment (Front/Back & Left/Right)

Adjusting feed dog position for accurate fabric feeding.

Feed Dog Height Adjustment

Adjusting the vertical height of the feed dog.

Presser Bar Height Adjustment

Adjusting the height of the presser bar.

Upper Thread Tension Adjustment

Adjusting the tension of the upper thread.

SS Pattern Stitch Length Adjustment

Adjusting stitch length for SS (triple stretch) patterns.

Feed Distance Adjustment

Adjusting the distance the fabric is fed.

Straight Stitch Length Adjustment (Forward/Reverse)

Adjusting stitch length for straight forward and reverse sewing.

BH Lever Switch Load Adjustment

Adjusting the load required to operate the BH lever switch.

Buttonhole Left Reverse Stitch Length Adjustment

Adjusting stitch length for left reverse stitches in buttonholes.

BH Stitch Bar Tack Feed Distance Adjustment

Adjusting feed distance for BH stitch bar tacks.

BH Sewing Length Adjustment

Adjusting the length of the stitch bar tack for BH sewing.

Bobbin Winder Adjustment

Adjusting the bobbin winding mechanism for proper thread winding.

Needle Threader Adjustment

Adjusting the automatic needle threading mechanism.

Lower Thread Tension Adjustment

Adjusting the tension of the lower thread.

Troubleshooting Electronic Parts Failures

Sewing Lamp Not Lighting Troubleshooting

Steps to diagnose and fix issues with the sewing lamp.

Motor Not Turning or Slow Rotation Troubleshooting

Diagnosing and resolving issues with the main motor's operation.

Special Wiring Instructions

Motor 3P Supply Assy Wiring

Instructions for wiring the motor 3P supply assembly.

LED Lamp Wiring Instructions

Guidelines for wiring the LED lamp in the sewing machine.

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