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Merrylock 2020 User Manual

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INSTRUCTION BOOK
INSTRUCTION BOOK
INSTRUCTION BOOK

Table of Contents

Questions and Answers:

Merrylock 2020 Specifications

General IconGeneral
BrandMerrylock
Model2020
CategorySewing Machine
LanguageEnglish

Summary

Preface

Principal Parts Overview

Accessories Included

Needle Information

Opening the Looper Cover

Parts Behind Looper Cover

Preparation for Sewing

Clean Pocket Removal and Replacement

Preparation for Threading

Setting Up Thread Guide Holder

Steps to set up the thread guide holder, extend it, and position it correctly for sewing.

Using the Anti-spill Net

How to use the anti-spill net with synthetic threads to prevent them from spilling off the cone.

Using the Spool Cap

Instructions for fitting the spool cap onto a regular thread spool for machine use.

Disengaging the Movable Upper Knife

Converting Upper Looper to 2-Thread Converter

Standard Overedge and Rolled Hem Stitching

Removing and Inserting Needles

Threading the Machine

Threading the Upper Looper (Green)

Step-by-step guide for threading the upper looper, including thread path and tension disc placement.

Threading the Lower Looper (Red)

Instructions for threading the lower looper, following color-coded guides and looper area.

Threading the Overedge Right Needle (Blue)

Guide for threading the overedge right needle, detailing thread path through guides and needle eye.

Threading the Overedge Left Needle (Orange)

Procedure for threading the overedge left needle, including thread guides and needle eye.

Changing Threads: Tie-on Method

Adjusting Stitch Length

Adjusting Seam Width

Adjusting Presser Foot Pressure

Differential Feed

Chaining Off and Test Sewing

Suggested Tension Settings

2-Thread Wrapped Edge Overlock Tension

Suggested tension settings and balancing tips for the 2-thread wrapped edge overlock stitch.

2-Thread Overedge Tension

Guidance on tension settings and adjustments for the 2-thread overedge stitch.

3-Thread Overlock Tension

Recommended tension settings and troubleshooting for balancing the 3-thread overlock stitch.

3-Thread Flatlock Tension

Tension settings and balancing advice for the 3-thread flatlock stitch.

3-Thread Ultra Stretch Mock Safety Stitch Tension

Tension settings and balancing procedures for the 3-thread ultra stretch mock safety stitch.

4-Thread Ultra Stretch Mock Safety Stitch Tension

Guidance on tension settings and balancing for the 4-thread ultra stretch mock safety stitch.

Sewing a Rolled Hem

3-Thread Standard Rolled Hem Stitching

Instructions for setting up the machine and performing a 3-thread standard rolled hem.

3-Thread Upper Looper Wrapped Rolled Hem Stitching

Steps for setting up and sewing a 3-thread rolled hem using upper looper thread wrapping.

2-Thread Standard Rolled Hem Stitching

How to set up and sew a 2-thread standard rolled hem.

2-Thread Lower Looper Wrapped Rolled Hem Stitching

Procedure for sewing a 2-thread rolled hem with lower looper thread wrapping.

Stitch Variations and Sewing Techniques

Flatlock Decorative Seam Machine Set Up

Setting up the machine, choosing needles, and balancing tension for a flatlock decorative seam.

Flatlocking a Seam

Steps for sewing a flatlock seam with fabric placed wrong sides together.

Decorative Flatlocking

Procedure for decorative flatlocking, including knife position and fabric folding.

Turning Square Corners

Turning Square Corners: Outside Corner

Guide for turning outside corners, including cutting, stitching, and fabric manipulation.

Turning Square Corners: Inside Corner

Steps for turning inside corners, including cutting, sewing, and fold adjustment.

Machine Maintenance

Cleaning the Machine

Instructions for cleaning the overlock machine, focusing on lint removal from the looper and knife area.

Oiling the Machine

Procedure for oiling the internal working parts of the sewing machine, specifying oiling points.

Replacing the Moveable Upper Knife

Exchanging the Light Bulb

Optional Accessories

Snap-On Type Presser Foot

Guide for removing and replacing the snap-on type presser foot on the machine.

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