SunStar SWF/B Series - User Manual

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USER

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S MANUAL

Single Head Automatic

Embroidery Machine

(Compact Type)

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SWF/B- Series

Table of Contents

Questions and Answers:

H
Hunter BarnesAug 16, 2025
Why does my SunStar SWF/B keep breaking thread?
- C
  Cynthia KimAug 16, 2025
  If your SunStar Sewing Machine experiences thread breaks, consider the following: * Re-punch the design tape if the stitch is too small or dense for the thread. * Re-punch after checking the design if there are frequent thread breaks in the same spot. * Change the needle if it is inadequate for the thread. * Replace the needle if it is damaged (bent, dented, or worn). * Re-install the needle if it is incorrectly installed. * Clean or change the needle and hook if the needle is dirty (adhesive, etc.).
P
Phyllis HullAug 19, 2025
What to do if my SunStar Sewing Machine has operation failure?
- S
  shawloriAug 19, 2025
  If your SunStar Sewing Machine experiences operation failure, here's what you can do: * Check and adjust the belt tension, or replace the belt if damaged. * Inspect the fuse in the main shaft motor drive and replace it if there's a power failure or short-circuit. * Run a manual color change and adjust the operation box to indicate a normal needle position signal if the machine fails to sense signals for needle position or 1 rotation. * If the frame is out of the X/Y limit (when a limit is set), correct the starting point of the design or manually move the frame so the design comes within the limit. * Check and re-plug the connector to resolve bad connection issues.
D
Darlene CollinsAug 22, 2025
Why does my SunStar SWF/B have bad stitch quality?
- P
  Paul EdwardsAug 22, 2025
  If your SunStar Sewing Machine is producing bad stitch quality, consider the following: * Adjust the data if you suspect bad quality tape data. * Adjust the tension if the X-Y belt tension is inadequate. * Clean the rail to remove any foreign substances in the X-Y rail. * Change the circuit board if there is a power failure or an issue with the X/Y circuit board. * Reduce the speed of the main shaft if there's a heavy load on the frame.
C
Carrie MillerAug 25, 2025
How to fix poor stitch tension on a SunStar SWF/B Sewing Machine?
- M
  Martin CordovaAug 26, 2025
  If your SunStar Sewing Machine is producing poor stitch tension, here are some possible solutions: * Adjust the tension if the upper thread tension is weak. * Clean the main and sub tension adjusters in the thread tension adjusting plate if there's uneven upper thread tension due to foreign substances. * Adjust the tension if the lower thread tension is weak. * Clean the bobbin case and bobbin spring if there's uneven lower thread tension. * Change to a quality thread if the thread thickness is the issue. * Adjust the timing if there's poor timing of the needle and hook. * Oil the raceway of the hook if there's insufficient oil in the hook.
I
iwatsonAug 27, 2025
Why does my SunStar SWF/B Sewing Machine keep breaking needles?
- R
  Russell MonroeAug 27, 2025
  If your SunStar Sewing Machine is breaking needles, consider the following: * Change the needle if it is bent. * Change the needle if it is of bad quality. * Change the needle if the tip is worn or bent. * Change the needle if it is inadequate for the thread or fabric. * Space the needle and the hook point if the needle touches the hook point. * Correct the installation if the needle is incorrectly installed.
M
Melanie LambertAug 30, 2025
What to do if my SunStar SWF/B has trimming failure?
- D
  Danielle MendozaAug 30, 2025
  If your SunStar Sewing Machine is experiencing trimming failure, you can try the following: * Check and change fuse F1, F3 in the joint board if there's a short-circuit in the trimming fuse. * Check and change the solenoid and solenoid connection if there's a poor connection or quality of the solenoid. * Check the connection if there's a bad connection. * Change the joint board if the trimming driver TR is damaged.
M
Michelle DelgadoSep 2, 2025
Why is my SunStar Sewing Machine causing puckering?
- C
  Cynthia FloresSep 2, 2025
  If your SunStar Sewing Machine is causing puckering, here are some possible solutions: * Adjust the tension if there is excessive thread tension. * Change the presser foot spring if there is excessive pressure from the presser foot. * Change the needle if there is needle failure (worn out/damaged needle tip). * Use an adequate size needle if the needle is too large for the thread.
D
Douglas ChungSep 4, 2025
What causes incorrect stop position on a SunStar Sewing Machine?
- J
  jessegarciaSep 4, 2025
  If your SunStar Sewing Machine has an incorrect stop position, try these solutions: * Adjust the belt tension if there is loose tension on the main driver belt. * Adjust the encoder position or change the encoder if there is an incorrect encoder position or a bad encoder.
S
Sarah McfarlandSep 7, 2025
What to do if my SunStar SWF/B Sewing Machine has bad color change?
- A
  Amanda NixonSep 7, 2025
  To resolve a bad color change on your SunStar Sewing Machine: * Refer to the user’s manual if the needle stop position is incorrect. * Run a manual color change and adjust so the operation box indicates a normal needle position signal if the machine fails to sense signals for needle position or 1 rotation. * Set it to the correct position if the needle bar position is incorrect. * Adjust so the take-up lever is in line with other levers in the stop position (upper shaft angle: 100°) if the take-up lever position is incorrect. * Change fuse F3 in the joint board or check the connection if there is a fuse failure for the color change motor.
D
Daniel BlevinsSep 10, 2025
What causes a SunStar SWF/B Sewing Machine to have a bad jump?
- C
  carrollchristinaSep 10, 2025
  If your SunStar Sewing Machine is experiencing a bad jump, consider the following: * Change fuse F3 in the joint board if there's a short-circuit of the fuse for the jump circuit. * Check the wiring and change the solenoid if there's a bad solenoid and solenoid wiring. * Check the connection if there's a bad connection. * Change the switch and circuit board if there's a switch failure on the tension adjusting plate and on the circuit board.

SunStar SWF/B Series Specifications

General

Brand	SunStar
Model	SWF/B Series
Category	Sewing Machine
Language	English

Summary

CHAPTER 1 SAFETY RULES

Machine Operation Safety

Safety guidelines to follow while operating the embroidery machine.

CHAPTER 4 FUNCTIONS AND FEATURES

Design Manipulation and Editing

Details on scaling, mirroring, repetition, offset, and editing functions.

CHAPTER 5 BASIC MACHINE OPERATION

Operation Workflow and Starting Procedure

CHAPTER 6 BUTTON AND SWITCH OPERATION

Control Panel Overview and Buttons

Start, Stop, and Emergency Operations

How to start, stop, use float function, and engage emergency stop.

CHAPTER 7 THREADING AND TENSION

Upper Thread Path and Threading

Thread Tension Adjustments

How to adjust upper and bobbin thread tension for optimal stitch quality.

CHAPTER 8 THE NEEDLE, THE HOOK AND THE STITCHES

Stitch Formation and Needle Selection

Needle, Hook, and Timing Adjustments

Details on needle/hook relationship, timing, and thread path effects.

CHAPTER 10 NAVIGATING THE CONTROL PANEL

Operating System and Initial Setup

Design Management Functions

Basic Design Setup and Editing

Scaling, rotation, mirroring, start stitch, satin stitch, and stitch editing.

Advanced Operation Modes

CHAPTER 11 ERROR MESSAGES AND CORRECTIONS

Motor, Axis, and Solenoid Errors

Troubleshooting guide for errors related to motors, axes, and solenoids.

Color Change, Encoder, and Floppy Errors

CHAPTER 13 MAINTENANCE AND INSPECTION

Regular Inspection and Cleaning

Oiling Procedures and Points

CHAPTER 14 MACHINE ADJUSTMENTS

Trimmer and Blade Adjustments

Procedures for adjusting trimmers, movable blades, and their tensions.

Spring, Picker, and Encoder Adjustments

CHAPTER 15 TROUBLESHOOTING

Machine Operation and Needle Position Problems

Common issues with machine operation and needle positioning.

Thread Break and Stitch Quality Issues

Diagnosing and resolving frequent thread breaks and poor stitch quality.

Skipped Stitches and Puckering Problems

Solutions for skipped stitches, puckering, and needle-related issues.

CHAPTER 16 NEEDLE CHART

Needle Selection Guide by Fabric Type

CHAPTER 18 HOOPING AND TENSIONS

Fabric Hooping Techniques and Stability

Proper methods for hooping fabric to ensure stability and prevent design errors.

Machine Thread Tension Adjustment

How to check and adjust upper and lower thread tensions for quality stitching.

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