Sunbeam SB700 - User Manual

Questions and Answers

R
Richard ConwayAug 9, 2025
Why does the upper thread keep breaking on my Sunbeam Sewing Machine?
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  nunezmarcAug 9, 2025
  The upper thread may break due to several reasons: the machine might not be threaded correctly, so rethread it. The thread tension could be too tight; reduce the thread tension. You might be using a thread that's too thick for the needle, in which case you should select a larger needle. Also, check if the needle is inserted correctly (flat side towards the back) or is damaged and needs replacement. Finally, ensure the thread isn't wound around the spool holder pin; if it is, remove the reel and wind the thread onto it.
M
Michael CantuAug 19, 2025
What to do if my Sunbeam Sewing Machine is skipping stitches?
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  Robert JordanSep 12, 2025
  If your Sunbeam Sewing Machine is skipping stitches, there are a few potential causes. Ensure the needle is correctly inserted with the flat side towards the back. A damaged needle can also cause skipped stitches, so insert a new needle. The wrong size needle could be the culprit, so choose a needle to suit the thread and fabric. Lastly, check that the foot is correctly attached.
B
Beverly ValenciaAug 29, 2025
How to fix lower thread breaks on a Sunbeam SB700?
- D
  Douglas StoneAug 29, 2025
  If the lower thread is breaking on your Sunbeam Sewing Machine, it might be due to a few reasons. First, the bobbin case may not be inserted correctly; remove and reinsert it, ensuring the thread pulls easily. Second, the bobbin case may not be correctly threaded; check both the bobbin and bobbin case. Third, the lower thread tension might be too tight; loosen the lower thread tension as described.

Summary

Safety Instructions

DANGER: Electric Shock Precautions

Key safety measures to prevent electric shock hazards during operation.

WARNING: Fire, Burn, and Injury Precautions

Essential warnings to prevent fire, burns, and personal injury.

General Safety Precautions

Important general safety rules for using the sewing machine.

Fitting the Snap-in Sewing Table

Connecting to Power Source

Power Connection and Operation

Guides on how to safely connect the sewing machine to the power outlet and start operation.

Two-Step Presser Foot Lever

Attaching Presser Foot Holder and Seam Guide

Winding the Bobbin

Bobbin Winding Procedure

Step-by-step guide on how to properly wind a bobbin for sewing.

Inserting the Bobbin

Bobbin Case Insertion

Detailed instructions for correctly inserting the bobbin case into the shuttle race.

Changing the Needle

Needle Replacement Process

Steps for safely and correctly changing the sewing machine needle.

Threading the Upper Thread

Upper Thread Path

A guide on how to thread the upper thread through the machine's guides.

Thread Tension Adjustment

Lower Thread Tension Test and Adjustment

How to test and adjust the tension of the bobbin thread.

Upper Thread Tension Settings

How to adjust the main thread tension for optimal stitch quality.

Bringing Up the Lower Thread

Lower Thread Retrieval Procedure

Steps to bring the bobbin thread up to the needle plate level.

Finishing Up Sewing Operations

Reverse Sewing for Reinforcement

Removing Fabric from Machine

Cutting Threads

Matching Needle, Fabric, and Thread

Needle Types and Fabric Applications

Choosing Your Sewing Pattern

Selecting and Adjusting Stitch Patterns

Straight Stitching and Needle Position

Straight Stitch and Needle Placement

Zig-Zag Sewing Techniques

Zig-Zag Stitch Width and Length Adjustment

Utility Sewing: Buttonholes

Stitch Selection Guide

Triple Straight Stitch for Strong Seams

Triple Zig-Zag for Durable Seams

Free Motion Darning

Darning

Twin Needle Sewing

Maintenance and Lubrication

Stitch Plate Removal and Cleaning

Steps to remove the stitch plate for cleaning or maintenance.

Feed Dog and Hook Cleaning and Lubrication

How to clean the feed dog and lubricate the hook mechanism.

Troubleshooting Guide

Thread Breakage Issues

Solutions for common upper and lower thread breaking issues.

Stitch and Needle Problems

Diagnosing and fixing skipped stitches and broken needles.

Troubleshooting Guide (Continued)

Loose Stitches and Fabric Puckering

Addressing issues like loose stitches and fabric puckering.

Machine Noise and Jamming

Solutions for a noisy machine and jamming problems.

Sunbeam SB700 Specifications

General

Brand	Sunbeam
Model	SB700
Needle Threader	Yes
Free Arm	Yes
Built-in Stitches	70
Included Accessories	Buttonhole Foot, Button Sewing Foot, Screwdriver, Seam Ripper/Lint Brush, Needles, Bobbins
Category	Sewing Machine
Type	Electronic Sewing Machine