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Brother CS5055PRW User Manual

Brother CS5055PRW
196 pages
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Table of Contents

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Brother CS5055PRW Specifications

General IconGeneral
Stitch Number50
Needle ThreaderAutomatic
LCD ScreenYes
Speed ControlYes
Free ArmYes
Maximum Sewing Speed850 stitches per minute
LightingLED
Buttonhole Styles5 one-step
Included Accessoriesneedle set, bobbins, screwdriver, seam ripper, cleaning brush
Presser Feet7 included
Bobbin TypeDrop-in

Summary

Outline of Mechanism

Main Mechanisms

Explains the main mechanical parts of the sewing machine.

Driveline

Describes the power transmission and movement mechanisms.

Positions of Electronic Components

Details the location of various electronic parts within the machine.

Control System Block Diagram

Illustrates the interconnections of electronic control components.

Operation of Other Electronic Components

Explains the function of individual electronic components.

Basics of Disassembly/Assembly

Main Parts

Covers the disassembly and assembly of the machine's primary structural components.

Electrical Parts and Motors

Details procedures for handling electrical components and motors.

Needle Bar, Presser Mechanism / Upper Shaft Mechanism

Focuses on the needle and presser mechanisms and upper shaft assembly.

Feed Mechanism

Explains the disassembly and assembly of the fabric feeding system.

Bobbin Winder Mechanism

Covers the procedures for the bobbin winding mechanism.

Application of Disassembly/Assembly

Main Parts

Details specific disassembly and assembly steps for main components.

Electrical Parts and Motors

Provides detailed assembly steps for electrical parts and motors.

Needle Bar, Presser Mechanism / Upper Shaft Mechanism

Specific assembly instructions for needle, presser, and upper shaft parts.

Bobbin Winder Mechanism

Detailed assembly procedures for the bobbin winder.

Feed and Rotary Module

Explains the assembly of the feed and rotary components.

Needle-Presser Module

Step-by-step assembly for the needle-presser module.

Adjustment

Starting Test Mode/Starting and Stopping Operation

Procedures for entering and controlling test modes for adjustments.

Timing Belt Tension

Instructions for adjusting the timing belt tension for optimal performance.

Motor Belt Tension

Guidelines for setting the correct motor belt tension.

Upper Thread Tension

Details on adjusting the upper thread tension for proper stitching.

Left Base Line Needle Drop

Procedure to adjust needle drop for the left base line.

Rotary Hook Unit Position

Steps to align the rotary hook unit correctly.

Needle Clearance Left/Right

Adjusting the needle-to-hook clearance on both sides.

Needle Bar Rising

Adjusting the needle bar's upward travel position.

Needle Bar Height

Setting the correct vertical position of the needle bar.

Clearance Between Needle and Rotary Hook Point

Adjusting clearance between needle tip and rotary hook.

Needle Threader

Adjustment procedure for the automatic needle threader.

Presser Bar Height and Parallelism

Adjusting presser bar height and ensuring parallelism.

Feed Forward/Backward

Adjusting the feed dog's forward and backward movement.

Bobbin Winder

Adjusting the bobbin winding mechanism for proper fill.

BH Lever Switch Position

Setting the position of the buttonhole lever switch.

Needle and Presser Foot Front/Back Position

Adjusting the front/back position of needle and presser foot.

Front/Back and Left/Right Position of Feed Dog

Aligning the feed dog's position.

Feed Dog Height

Setting the correct height of the feed dog.

Inner Rotary Hook Bracket Position

Adjusting the position of the inner rotary hook bracket.

Inner Rotary Hook Assy. (Lower Thread) Tension

Adjusting the tension of the lower thread in the rotary hook.

Failure Investigation for Electronic Parts

Error Message List

Lists error codes and their probable causes for electronic issues.

Error Message is Displayed

Troubleshooting steps for specific error messages shown on the display.

Power Does Not Come On

Diagnostic steps when the machine fails to power on.

Pulse Motor Does Not Return to Initial Position

Troubleshooting for pulse motors not returning to their starting point.

Pattern Cannot Be Selected

Steps to resolve issues with pattern selection.

Main Motor Does Not Rotate

Troubleshooting guide for when the main motor fails to spin.

Main Motor Rotation Is Not Normal

Addresses problems with unstable or insufficient main motor speed.

Pattern Cannot Be Sewn Correctly

Steps for diagnosing and fixing incorrect pattern stitching.

Button Hole Cannot Be Sewn Correctly

Troubleshooting for issues with sewing buttonholes.

Operation Button Does Not Work

Diagnosing problems with the machine's operation buttons.

Does Not Operate When the Foot Controller is Used

Resolving issues related to foot controller operation.

Bobbin Thread Cannot Be Wound on the Bobbin

Troubleshooting steps when bobbin winding fails.

LED Lamp Does Not Light

Steps to diagnose why the LED lamp is not illuminating.

LCD Is Not Normal

Troubleshooting for display issues on the LCD screen.

Buzzer Does Not Sound

Steps to diagnose why the buzzer is not functioning.

Special Instructions of Wiring

Needle Bar / Presser Module Wiring

Wiring instructions for the needle bar and presser mechanisms.

Power Supply Unit Wiring

Details on correctly wiring the power supply unit.

Front Cover Wiring

Wiring procedures specific to the front cover components.

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