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Brother EF4-B571 User Manual

Brother EF4-B571
25 pages
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EF4-B561
EF4-B571
MA4-B581
From the library of: Superior Sewing Machine & Supply LLC

Table of Contents

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Brother EF4-B571 Specifications

General IconGeneral
BrandBrother
ModelEF4-B571
CategorySewing Machine
LanguageEnglish

Summary

Product Specification Code Guide

Model Designation Explained

Explains the model designation system for the sewing machine.

Machine Installation

Machine Head Installation

Describes the installation of the machine head for flat and semi-submerged types.

Machine Operation Settings

Sewing Speed Guidelines

Details maximum sewing speed and break-in period for new machines.

Motor Pulley and Belt Selection

Explains motor type, belt type, and pulley selection based on machine type.

Installation and Maintenance Procedures

Machine Rotation and Belt Installation

Instructions for setting machine rotation and belt installation.

Belt Cover Installation

Guidance on mounting the belt cover.

Optional Accessory Installation

Steps for installing eye guard and spool stand accessories.

Oiling and Oil Draining

Information on lubricating the machine and draining oil.

Routine Maintenance

Oil Change Procedure

Procedure and frequency for changing the machine oil.

Needle Installation

Installing the Sewing Needle

Step-by-step guide for installing a sewing needle.

Correct Operation and Adjustments

Thread Tension Adjustment

Explains how to adjust thread tension based on various factors.

Needle Thread Guide Adjustment

Details how to adjust the needle thread take-up and guide.

Looper and Threading Adjustments

Overlock Looper Thread Take-ups and Guides

Instructions for adjusting thread take-ups and guides for overlock stitches.

Needle Bar Rise Position Adjustment

Explains how to set the needle bar's raised position.

Specific Stitch Adjustments

Double Chain-Stitch Thread Take-up Adjustment

Guide for adjusting the thread take-up for double chain stitches.

Presser-Foot Pressure Adjustment

How to adjust the pressure applied by the presser foot.

Stitch Width Determination and Adjustment

Explains how stitch width is determined and adjusted.

Stitch Width Control

Increasing Stitch Width

Steps to increase the stitch width using upper and lower knives.

Decreasing Stitch Width

Steps to decrease the stitch width using upper and lower knives.

Stitch Length and Differential Feed

Stitch Length and Differential Feed Adjustment

How stitch length and differential feed are adjusted.

Feed Mechanism Adjustments

Stitch Length Adjustment Procedure

Detailed steps for adjusting stitch length using feed arms.

Differential Feed Arm Scale Adjustment

Instructions for setting the differential feed arm scale.

Differential Feed Control

Differential Feed Arm Adjustment for Sewing Types

Adjusting the differential feed arm for stretch and gather sewing.

Standard Adjustments Overview

Needle Height Adjustment

How to adjust the needle height for standard and high-lift specifications.

Looper Adjustments

Under Looper Adjustment

Steps to adjust the lower looper's position and alignment.

Over Looper Adjustments

Over Looper Adjustment

How to adjust the over looper's position and alignment.

Double Chain-Stitch Looper Adjustment

Double Chain-Stitch Looper Adjustment Procedure

Adjusting the double chain-stitch looper for stitch formation.

Thread Trimmer Adjustment

Thread Trimmer Knife Alignment

How to align and adjust the thread trimmer knives.

Feed Dog Adjustments

Feed Dog Height Adjustment

Instructions for adjusting feed dog heights for different stitch types.

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