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Brother T-8452B User Manual

Brother T-8452B
61 pages
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T-8421B
TWIN NEEDLE DIRECT DRIVE LOCK STITCHER
T-8422B
TWIN NEEDLE DIRECT DRIVE LOCK STITCHER
WITH THREAD TRIMMER
T-8452B
TWIN NEEDLE DIRECT DRIVE SPLIT NEEDLE BAR
LOCK STITCHER WITH THREAD TRIMMER
T-8722B
TWIN NEEDLE DIRECT DRIVE LOCK STITCHER
WITH LARGE HOOK AND THREAD TRIMMER
T-8752B
TWIN NEEDLE DIRECT DRIVE SPLIT NEEDLE BAR
LOCK STITCHER WITH LARGE HOOK
AND THREAD TRIMMER

Table of Contents

Questions and Answers:

Brother T-8452B Specifications

General IconGeneral
BrandBrother
ModelT-8452B
CategorySewing Machine
LanguageEnglish

Summary

SAFETY INSTRUCTIONS

Safety Symbols and Warnings

Explains hazard symbols and warnings for safe operation.

Notes on Safety

Environmental Requirements

Details ambient temperature and humidity for machine operation.

Installation Procedures

Outlines procedures and precautions for machine installation.

Sewing Operations

Sewing Safety Precautions

Covers safe practices and precautions during sewing operations.

Cleaning Procedures

Daily Cleaning and Maintenance

Details daily cleaning procedures and maintenance for the machine.

Warning Labels

Warning Label Explanations

Illustrates and explains various warning labels found on the sewing machine.

Machine Specifications

Machine Specification Details

Provides details on the machine's specifications and features.

Major Parts Identification

Identifying Machine Components

Identifies and labels the main components of the sewing machine.

Installation

Machine Set-up Location Guidance

Guides on selecting an appropriate location for the sewing machine.

Machine Handling and Head Tilting

Provides instructions on safely moving, carrying, and tilting the machine head.

Installation

Table Processing Diagram for Installation

Shows a diagram for processing the sewing machine table.

Control Box and Rod Installation

Illustrates the installation process for the control box and connecting rod.

Installation

Power Switch and Oil Pan Installation

Details the installation of the power switch and oil pan.

Cushions and Knee Lifter Bar Installation

Guides on installing rubber cushions and the knee lifter complying bar.

Installation

Machine Head and Panel Installation

Instructions for mounting the machine head and installing the operation panel.

Cotton Stand Installation Guide

Explains the installation of the cotton stand.

Installation

Knee Lifter Plate Installation and Adjustment

Covers the installation and adjustment of the knee lifter plate.

Preparation Before Sewing

Needle Installation Guide

Step-by-step guide for correctly installing the sewing machine needle.

Preparation Before Sewing

Bobbin Removal Procedure

Instructions for removing the bobbin from the machine.

Preparation Before Sewing

Lower Thread Winding Instructions

Details the process of winding thread onto the bobbin.

Preparation Before Sewing

Bobbin Installation Procedure

Step-by-step guide for inserting the bobbin into the rotary hook.

Preparation Before Sewing

Bobbin Case Threading Guide

Explains how to thread the bobbin case for different types.

Preparation Before Sewing

Upper Threading Instructions

Provides instructions for threading the upper thread through the machine.

Preparation Before Sewing

Thread Path Guidance

Illustrates thread paths for different models and specifies thread handling.

Preparation Before Sewing

Stitch Length Adjustment

Guides on setting and adjusting the stitch length.

Knee Lifter Operation

Explains how to operate the knee lifter for raising the presser foot.

Thread Wiper Operation

Details the operation of the thread wiper for models with this feature.

Preparation Before Sewing

Corner Sewing Method Guide

Instructions for performing corner stitching with twin needles.

Stitch Count Reference for Cornering

Provides a reference chart for stitch counts based on sewing angle.

Using the Operation Panel (Basic Operations)

Basic Operation Panel Functions

Identifies and explains the functions of buttons on the basic operation panel.

Using the Operation Panel (Basic Operations)

Fixed Stitch and Name Label Key Usage

Explains the use of fixed stitch and name label keys for specific sewing patterns.

Pleat Sewing and Thread Trim Key Usage

Details pleat sewing and thread trimming functions via the operation panel.

AUTO Key and Speed Control

Covers AUTO key functionality and adjusting sewing speed settings.

Thread Trim Lock and Half Stitch Key Usage

Explains thread trimming lock and half stitch key functions.

Lower Thread Counter Functions

Describes the lower thread counter display and its setting keys.

Using the Operation Panel (Basic Operations)

Start and End Backtack Stitch Setup

Guides on setting and performing start and end backtack stitches.

Using the Operation Panel (Basic Operations)

Fixed Stitch Sewing Procedure

Instructions for sewing a set number of fixed stitches.

Automatic Trimming and Sewing Modes

Explains automatic thread trimming and sewing modes.

Using the Operation Panel (Basic Operations)

Lower Thread Counter Operation Details

Details how the lower thread counter works and its warning functions.

Using the Operation Panel (Advanced Operations)

Advanced Operation Panel Functions

Identifies and explains advanced functions on the operation panel.

Using the Operation Panel (Advanced Operations)

Needle Stop Position Adjustment

Guides on setting the needle's stop position (up or down).

LOCK Key Functionality and Protection

Explains the function of the LOCK key to prevent accidental setting changes.

Resetting Operation Panel to Defaults

Describes how to reset all panel settings to factory defaults.

Sewing Operations

Sewing Safety Precautions

Covers safety guidelines and warnings before and during sewing.

Basic Sewing Procedure

Step-by-step instructions for starting and performing a sewing operation.

Sewing Operations

Backtacking Procedure

Instructions on how to perform backtacking using the actuator or reverse lever.

Sewing Operations

Condensed Stitch Sewing

Details how to sew condensed stitches and adjust related settings.

Thread Tension Adjustment

Thread Tension Adjustment Guide

Guides on adjusting upper and lower thread tension for proper stitch formation.

Thread Tension Adjustment

Presser Foot Pressure Adjustment

Explains how to adjust presser foot pressure for different materials.

Thread Tension Adjustment

Presser Foot Floating Amount Adjustment

Covers minute adjustments to the presser foot floating amount.

Trailing Thread Length Adjustment

Details how to adjust trailing thread length after trimming.

Thread Tension Adjustment

Thread Take-Up Amount Adjustment

Guides on adjusting the thread take-up amount for optimal sewing.

Cleaning and Maintenance

Daily Cleaning Procedures

Step-by-step guide for daily cleaning and maintenance tasks.

Oil Tank Filling and Checking

Instructions for checking and filling the machine's oil tank.

Cleaning and Maintenance

Lubricating Oil Draining

Explains how to drain and dispose of lubricating oil from the oiler.

Oil Cover Lubrication

Details lubricating the machine via the oil cover at specified intervals.

Cleaning and Maintenance

Grease Application - GREASEUP Alert

Explains what to do when the "GREASEUP" notification appears.

Cleaning and Maintenance

Grease Application Procedure

Step-by-step guide on how to apply grease to specific machine parts.

Grease Consumption Reset Procedure

Procedure to reset the grease consumption indicator after application.

Rotary Hook Lubrication Adjustment

Rotary Hook Lubrication Adjustment Guide

Provides guidance on adjusting the oil level for the rotary hook.

Checking Rotary Hook Lubrication

Details how to check the amount of oil supplied to the rotary hook.

Adjusting Rotary Hook Lubrication

Explains how to adjust the oil supply to the rotary hook.

Troubleshooting Common Issues

Sewing Problems and Causes

Lists common sewing issues like upper/lower thread tension and loops.

Troubleshooting Common Issues

Skipped Stitches and Thread Issues

Addresses issues of skipped stitches and thread problems at sewing start.

Troubleshooting Common Issues

Seam Defects and Tension Issues

Covers problems like uneven seams and puckering due to tension issues.

Material Slippage and Thread Tangling

Addresses material slippage and lower thread tangling issues.

Troubleshooting Common Issues

Thread Breakage and Trimming Issues

Discusses causes for threads breaking and improper thread trimming.

Needle Breakage and Machine Operation

Covers broken needles and machine not operating when powered on.

Troubleshooting Common Issues

High Speed Operation and Stops

Addresses issues with high speed operation and unexpected machine stops.

Operation Panel Display Issues

Explains what to do if nothing appears on the operation panel display.

GREASEUP Notification Handling

Advises on the GREASEUP notification and its resolution.

Troubleshooting Common Issues

Error Code Display Interpretation

Explains how to interpret and resolve error codes on the operation panel.

Troubleshooting Common Issues

Safety, Voltage, Communication Errors

Covers error codes related to safety switch, voltage drops, and panel communication.

Overtime, Motor Overheating, Solenoid Errors

Addresses error codes for extended operation, motor overheating, and solenoid issues.

Troubleshooting Common Issues

Motor and Treadle Error Codes

Explains error codes related to motor operation and treadle position.

Solenoid and Overheating Error Codes

Details error codes for solenoid power supply and control box overheating.

Troubleshooting Common Issues

Thermistor and Greaseup Error Codes

Covers error codes for thermistor issues and GREASEUP notification.

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