Brother MyLock 204D Sewing Machine Service Manual

Service manual for the Brother MyLock 204D sewing machine. Covers threading, stitch settings, maintenance, and troubleshooting. Part Number: MYLOCK204D

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Document Details

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Document Number / Seller:
25564 / Jennifer Mason
File Size:
8.45 MB
File Type:
PDF
Language:
English, French, Spanish
Pages:
88
Printable:
Yes
Category:
Sewing Machine
Last updated / verified
May 10, 2025

Models Covered & Key Technical Specifications

Brother MyLock 204D (MYLOCK204D) - 2004

Service Manual | Series Overlock Container.

  • Approved Category: Stitch Length: 1-5 mm establishes the basic stitch size.
  • Factory Settings: Differential Feed Ratio: 1.0 indicates the neutral position.
  • Primary Specifications: Needle: HA-1 SP #14 or #11 is used for sewing.
  • General Guidelines: Looper Thread: Woolly nylon, Woolly polyester is recommended.
  • Essential Data: Fabric Type: Lightweight fabrics like Organdy, Crepe de Chine.
  • Operational Procedures: Tension Dials: Set all four to '3' for initial testing.

Professional Workshop Service Manual & Technical Specifications

Brother MyLock 204D Service Manual: Brother MyLock 204D - Precision Maintenance & Safe Operation Manual Technical-Briefing

Component-Focus: Stitch Length Settings // Service-Level: Advanced / Overlock Logic // System-Identifier: Threading & Tension. The documentation provides guidance on the various components and their specific functions. Consistently demanding precise adjustments for optimal performance. Specific procedures for threading both upper and lower loopers, needles, and tension adjustments are detailed. The manual outlines care procedures for the machine, including cleaning and part replacement.

Procedures for rolled hemming, picot edging, and narrow hemming are documented, along with settings for decorative overedging and gathering. Information on troubleshooting common issues such as skipped stitches, thread breakage, and uneven seams is included.

Assessment-Parameter System-Path Calibration-Spec
Needle Type Sewing Operation HA-1 SP #14 or #11
Thread Type Stitching Performance Woolly Nylon / Polyester
Fabric Guide Tension Adjustment Lightweight Fabrics
Differential Feed Stitch Consistency 1.0 (Neutral)
Stitch Length Setting Range 1-5 mm
Machine Care Lubrication Schedule Weekly Recommended

FAQ

What **essential** testing parameters are covered for MyLock 204D thread tension? keyboard_arrow_down

1-5 mm is the adjustable stitch length range, and the differential feed ratio is set to 1.0 for neutral.

Check the **correct** diagnostic procedures for a skipped stitch on the MyLock 204D. keyboard_arrow_down

Needle insertion (page 17), needle condition (bent/blunt), and thread tension (pages 52-54, 56, 66) are key checks.

What does the **documented** fluid capacity requirements state for the MyLock 204D? keyboard_arrow_down

Page 78 recommends applying oil once a week for normal use, and every ten hours for continuous use.

Reference the **precise** component identification for the upper looper thread. keyboard_arrow_down

Upper looper thread (4) is guided through specific points as shown in diagrams on pages 38-41.

What are the **proper** adjustment procedures for the needle plate setting knob? keyboard_arrow_down

Pages 28-29 detail adjusting the needle plate setting knob for Standard Serging (S) or Rolled Hemming (R).

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Reviews (3)

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Rated 5 out of 5 stars
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I found the download process smooth and received my manual via email almost instantly. Great resource for mastering my machine!
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This manual is a game changer for my sewing adventures. The instructions are clear and the troubleshooting section is incredibly helpful!