Ming Hui Sewing Machine Manual

The Ming Hui Sewing Machine is a versatile household sewing machine featuring multiple stitch patterns, adjustable stitch length and width, built-in buttonholer, free arm capability, built-in light, foot pedal control, reverse stitching, and bobbin winding system. Powered by 110-120V AC, 60Hz. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation & Setup 3. First-Time Operation 4. Specifications 5. Controls and Settings 6. Stitch Selection Guide 7. Threading & Bobbin Winding 8. Maintenance & Cleaning 9. Accessories Included 10. Safety Information 11. Troubleshooting

Features at a Glance

Key components: Main body with free arm, Foot pedal, Power cord, Built-in light, Stitch selection dial, Tension control, Bobbin case, Presser foot holder.

Feature	Description
Stitch patterns	12 built-in stitches including straight, zigzag, and decorative
Stitch length control	Adjustable from 0-4mm
Stitch width control	Adjustable from 0-5mm
Built-in buttonholer	One-step automatic buttonhole
Free arm capability	For sewing cuffs and tubular items
Reverse stitch lever	For reinforcing seams
Built-in light	Illuminates work area
Bobbin winding system	Built-in bobbin winder
Foot pedal control	Variable speed control
Power switch	Turns machine on/off

Installation & Setup

Unpack and inspect contents. Place on stable surface at comfortable working height.

Connect power: Plug foot pedal into machine, then plug power cord into wall outlet.
Install needle: Loosen needle clamp screw, insert needle with flat side to back, tighten screw.
Wind bobbin: Place empty bobbin on winder, thread through tension disk, press foot pedal.
Insert bobbin: Open bobbin cover, insert bobbin with thread unwinding counterclockwise.

WARNING! Keep fingers away from needle area during operation. Unplug when not in use.

First-Time Operation

Power on machine; test basic functions.

Thread upper thread: Follow numbered threading guide on machine.
Pull up bobbin thread: Hold upper thread, turn hand wheel toward you.
Test stitches: Select straight stitch, place fabric under presser foot, begin sewing.
Adjust tension: Test on scrap fabric, adjust tension dial as needed.

CAUTION! Always use proper needle for fabric type. Change needle regularly.

Specifications

Machine Type: Household electric sewing machine
Stitch Patterns: 12 built-in stitches
Stitch Length: 0-4mm adjustable
Stitch Width: 0-5mm adjustable
Buttonhole: One-step automatic
Free Arm: Yes, removable extension table
Lighting: Built-in LED light
Power Source: 110-120V AC, 60Hz
Speed Control: Foot pedal variable speed
Weight: 12 lbs (5.4 kg)

Controls and Settings

Main controls located on front and side of machine.

Front Panel: Stitch selection dial, Stitch length control, Stitch width control, Reverse stitch lever, Bobbin winder stop.

Stitch Selection: Turn dial to select desired stitch pattern. Stitch Length: Adjust for shorter/longer stitches. Stitch Width: Adjust for wider/narrower zigzag. Tension Control: Adjust for proper thread balance. Reverse Stitch: Hold lever for backstitching. Presser Foot Pressure: Adjust for different fabric thickness.

Stitch Selection Guide

Select appropriate stitch for your sewing project.

Straight Stitch: Basic sewing, seams (position 1)
Zigzag Stitch: Finishing edges, stretch fabrics (position 2)
Blind Hem: Nearly invisible hems (position 3)
Elastic Stitch: Sewing elastic, decorative (position 4)
Decorative Stitches: Various patterns (positions 5-12)
Buttonhole: Automatic one-step (special position)

Tip: Always test stitch on scrap fabric before sewing project.

Threading & Bobbin Winding

Proper threading ensures smooth operation.

Upper Threading: Follow numbered guide - spool pin, tension disks, take-up lever, needle.
Bobbin Winding: Place bobbin on winder, thread through guide, engage winder, press pedal.
Bobbin Insertion: Open cover, insert bobbin with thread unwinding counterclockwise.
Thread Drawing: Hold upper thread, turn hand wheel to bring up bobbin thread.

WARNING! Ensure machine is off when threading. Keep fingers clear of moving parts.

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

Daily: Brush out lint from bobbin area and feed dogs.
Weekly: Oil moving parts with sewing machine oil (2-3 drops).
Monthly: Clean tension disks with soft brush.
As needed: Replace needle after 8-10 hours of sewing.

CAUTION! Unplug machine before cleaning or maintenance. Use only sewing machine oil.

Accessories Included

Standard accessories provided with machine.

Accessory	Purpose
All-purpose foot	General sewing
Zipper foot	Installing zippers
Buttonhole foot	Making buttonholes
Bobbin (4)	Extra bobbins
Needles (3)	Spare needles
Seam ripper	Removing stitches
Brush	Cleaning lint
Screwdriver	Needle plate removal

Safety Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © 2025 Ming Hui; all rights reserved. Electrical Safety: UL listed components. For support, visit www.minghuisewing.com or contact 1-800-555-SEWING.

Important Safety Instructions: Always unplug when not in use. Keep fingers away from needle. Do not operate with damaged cord. Use only recommended accessories.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Thread breaking	Incorrect threading/tension	Rethread completely; adjust tension; check for burrs on needle.
Skipped stitches	Wrong needle/bent needle	Replace needle; ensure correct needle for fabric type.
Machine jams	Thread tangled in bobbin	Remove needle plate; clean bobbin area; rethread properly.
Uneven stitches	Tension issues	Adjust upper and bobbin tension; test on scrap fabric.
No power	Power connection	Check power cord connections; ensure outlet is working.
Noise/vibration	Lint buildup	Clean bobbin area and feed dogs; oil moving parts.

Service: 1-800-555-SEWING; www.minghuisewing.com