Brother 4234D User Manual (English)

Questions and Answers:

A
Angela MillerJul 28, 2025
Why do threads break on my Brother 4234D Sewing Machine?
- M
  Mr. Ruben ConleyJul 28, 2025
  Thread breakage can occur due to several reasons. You may have threaded the machine improperly, or the thread might be tangled on the spool pin or thread holders. The thread tension could also be too tight. Ensure the needle is correctly installed and is the correct type (Schmetz 130/705H). Additionally, make sure the tip of the thread change assembly is in the eye of the upper looper.
C
Christopher BushAug 2, 2025
What to do if my Brother 4234D Sewing Machine needles break?
- P
  Patrick WhiteAug 2, 2025
  Needle breakage can happen for a few reasons. The needle might be bent or blunt, in which case you should replace it with a new one. Also, check if the needle is installed correctly. Avoid pulling the material too hard while sewing, as this can also cause the needle to break.
M
Matthew WernerAug 7, 2025
Why is my Brother 4234D skipping stitches?
- W
  wardconnieAug 7, 2025
  Skipped stitches can occur if the needle is bent or blunt, so replace it. Ensure the needle is correctly installed and is the correct type (Schmetz 130/705H). Also, improper threading can cause this issue, so thread the machine correctly. Check that the presser foot pressure isn't too loose by turning the pressure adjustment screw clockwise to increase it. Finally, make sure the tip of the thread change assembly is in the eye of the upper looper.
W
william01Aug 12, 2025
How to fix a Brother 4234D Sewing Machine that does not feed fabric?
- A
  Ann EvansAug 12, 2025
  If the sewing machine isn't feeding fabric, the presser foot pressure may be too loose. Turn the pressure adjustment screw clockwise to increase the presser foot pressure.
M
Mr. Curtis TaylorAug 18, 2025
What to do if the fabric is puckered when using my Brother 4234D Sewing Machine?
- J
  Jennifer SmithAug 18, 2025
  Fabric puckering can occur if the thread tension is too tight; decrease the thread tension, especially when sewing lightweight or fine material. Improper threading or tangled thread can also cause puckering, so ensure the machine is threaded correctly.
J
Joseph PerezAug 22, 2025
Why are the stitches not uniform on my Brother 4234D?
- W
  Wesley ChavezAug 22, 2025
  Non-uniform stitches are often due to improperly adjusted thread tensions. Adjust the thread tension to resolve this issue.

Brother 4234D Specifications

General

Display	No
Free arm	Yes
Control type	Rotary
Sewing speed	850
Stitch width	Variable
Product color	White
Buttonhole type	-
Sewing machine functions	Overlock
Number of stitch patterns	4

Summary

Important Safety Instructions

DANGER

Instructions to reduce the risk of electric shock.

WARNING

Instructions to reduce the risk of burns, fire, electric shock, or injury to persons.

CAUTION

General safety precautions for machine use.

Warning Labels

US & Canada Specific Cautions

Cautionary notes specific to US and Canadian markets.

Face Plate Sticker Information

Details on the face plate sticker for US and Canadian markets.

Chapter 1: Names of Parts and Their Functions

Machine Components Overview

Identification of major machine parts and their locations.

Included and Optional Accessories

Listing of included and optional accessories for the machine.

Basic Machine Operations

Instructions on powering, opening covers, and attaching/removing presser feet.

Special Attachments and Features

Details on trim trap, wide table, and free-arm sewing.

Stitch Adjustment Controls

Explanation of stitch length, width, and knife retraction controls.

Differential Feed and Presser Foot Pressure

Guidance on differential feed and presser foot pressure adjustments.

Thread Tension Control and Charts

Explanation of thread tension dials and adjustment charts.

Needle Installation and Removal

Procedure for removing and installing machine needles.

Chapter 2: Preparation Before Threading

Thread Tree Setup

Instructions for raising and positioning the thread tree.

Thread Spool Cap Usage

Guidance on using the thread spool cap.

Thread Net Usage

Instructions for using the thread net for loosely spun thread.

Before Threading Procedures

Steps to take before starting the threading process, including safety.

Chapter 3: Threading

Two-Needle Four-Thread Overlock Threading

Step-by-step threading for two-needle, four-thread overlock stitch.

One-Needle Three-Thread Overlock Threading

Threading for one-needle, three-thread overlock stitch.

One-Needle Two-Thread Overlock Threading

Threading for one-needle, two-thread overlock stitch.

Lower Looper Threading

Detailed procedure for threading the lower looper.

Upper Looper Threading

Detailed procedure for threading the upper looper.

Left Needle Threading

Procedure for threading the left needle.

Right Needle Threading

Procedure for threading the right needle.

Needle Threading with Needle Threader

Using the needle threader for one-touch needle threading.

Chapter 4: Sewing Materials, Threads, and Needles Comparison Chart

Fine Materials Chart

Comparison chart for fine materials, threads, and needles.

Medium Materials Chart

Comparison chart for medium materials, threads, and needles.

Heavy Materials Chart

Comparison chart for heavy materials, threads, and needles.

Chapter 5: Sewing

Stitch Selection

Guide to selecting different stitch patterns for the machine.

Test Sewing Procedure

Steps for performing test sewing before actual use.

Chaining-off

Method for creating a thread chain after sewing.

To Start Sewing

Instructions on how to begin sewing with the machine.

To Remove Work

Procedure for safely removing sewn work from the machine.

To Secure Chain

Methods for securing the beginning and end of stitches.

If Threads Break During Sewing

Troubleshooting steps for thread breakage during sewing.

To Sew Fine Materials

Tips for sewing delicate or fine fabrics.

To Use the Stitch Finger W

Instructions for using the stitch finger W for stretch fabrics.

Two-Thread Sewing

How to set up and perform two-thread sewing.

Narrow Overlock/Rolled Hemming Stitch

Instructions for narrow overlock and rolled hemming stitches.

Chart of Narrow Overlock/ Rolled Hemming Stitch

Reference chart for narrow overlock and rolled hemming stitches.

Chapter 6: Troubleshooting

Machine Does Not Feed

Troubleshooting steps for when the machine fails to feed fabric.

Needles Break

Causes and remedies for needle breakage during operation.

Threads Break

Solutions for thread breakage issues, including threading and tension.

Skipped Stitches

Troubleshooting common causes of skipped stitches.

Stitches Are Not Uniform

Steps to resolve uneven stitch formation.

Fabric Is Puckered

Guidance on preventing fabric puckering during sewing.

Chapter 7: Maintenance

Cleaning the Machine

Procedure for cleaning dust, lint, and fabric scraps from the machine.

Oiling the Machine

Instructions for periodically oiling the machine's moving parts.

Chapter 8: Introduction of Optional Feet

Blind Stitch Foot Usage

Guide to using the blind stitch foot for blind stitches and overlock.

Blind Stitching and Flatlock Stitching

Techniques for blind stitching and flatlock stitching.

Pin Tuck Stitching

Procedure for creating pin tuck stitches for decoration.

Taping Foot Usage

Instructions for using the taping foot for sewing tapes and elastics.

Pearl Sequence Foot Usage

Guide to using the pearl sequence foot for beading and decoration.

Piping Foot Usage

Instructions for using the piping foot to attach piping to fabric edges.

Gathering Foot Usage

Instructions for using the gathering foot to create fabric gathers.

Specifications

General Use and Speed

Details on machine use, sewing speed, and stitch width/length.

Needle and Threading Specifications

Information on needle bar stroke, presser foot, and needle types.

Machine Weight and Dimensions

Specifications for machine weight and physical dimensions.

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