Bernina 730 Sewing Machine Manual

The Bernina 730 is a high-performance sewing machine featuring advanced stitching capabilities, built-in decorative stitches, automatic needle threader, adjustable stitch length and width, drop feed for free-motion sewing, built-in buttonhole styles, speed control, needle up/down function, and LED lighting. Powered by standard household electrical outlet. 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 7. Advanced Functions 8. Maintenance & Cleaning 9. Accessories 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Advanced sewing mechanism, built-in stitch patterns, automatic needle threader, LED work area lighting, bobbin winding system, foot pedal control.

FeatureDescription
Automatic needle threaderEasy threading with push-button mechanism
Built-in stitch patternsOver 100 decorative and utility stitches
LED lightingBright illumination of work area
Speed control sliderAdjustable sewing speed
Needle up/down functionProgrammable needle position
Drop feedFree-motion sewing capability
Buttonhole stylesMultiple automatic buttonhole options
Stitch length/width adjustmentCustomizable stitch dimensions
Bobbin winding systemBuilt-in bobbin winding
Foot pedal controlVariable speed foot control

Installation & Setup

Unpack and inspect contents. Place on stable sewing table.

  1. Remove packaging materials and protective covers.
  2. Place machine on flat, stable surface at comfortable height.
  3. Connect foot pedal to machine port.
  4. Plug power cord into electrical outlet.
  5. Install needle according to markings.
  6. Thread machine following path indicators.

WARNING! Machine is heavy; lift with care to avoid injury. Ensure stable surface placement.

First-Time Operation

Power on machine; familiarize with basic functions.

  1. Turn power switch to ON position.
  2. Select basic straight stitch using stitch selector.
  3. Practice on scrap fabric to test tension and stitch quality.
  4. Adjust stitch length and width as needed.
  5. Test automatic needle threader function.
  6. Practice with speed control and foot pedal.

CAUTION! Keep fingers away from needle area during operation. Always turn off when not in use.

Specifications

Controls and Settings

Access functions via control panel and dials. Front Panel: Power switch, stitch selector, stitch length dial, stitch width dial, reverse stitch button.

Additional Controls: Automatic needle threader, thread cutter, bobbin winding mechanism, speed control slider, needle position button.

Stitch Settings: Length adjustment (0-5mm), width adjustment (0-7mm), pattern selection, mirror image function. Utility: Reverse stitching, automatic thread cutter, bobbin winding, needle position memory.

Stitch Selection

Comprehensive stitch library including utility, decorative, and specialty stitches.

  1. Turn stitch selection dial to desired pattern number.
  2. Adjust stitch length for fabric type and purpose.
  3. Set stitch width for decorative effects.
  4. Test stitch on scrap fabric before sewing project.
  5. Use reverse stitch function to secure beginnings and endings.

Tip: Refer to stitch guide for recommended settings for different fabric types.

Advanced Functions

Advanced features for professional sewing results.

  1. Automatic buttonholes: Select buttonhole style, measure button, sew perfect buttonhole.
  2. Decorative stitches: Choose from extensive pattern library.
  3. Free-motion sewing: Drop feed dogs for quilting and embroidery.
  4. Mirror imaging: Create symmetrical decorative patterns.
  5. Programmable needle position: Set needle to stop up or down.
  6. Speed control: Adjust maximum sewing speed.

WARNING! Always use appropriate presser feet for specific functions. Keep work area clean.

Maintenance & Cleaning

Regular maintenance ensures optimal performance and longevity.

  1. Unplug machine before cleaning or maintenance.
  2. Clean lint from bobbin area after each project.
  3. Oil machine according to manufacturer recommendations.
  4. Wipe exterior with soft, dry cloth.
  5. Replace needle regularly (every 8-10 hours of sewing).
  6. Check and clean feed dogs periodically.

CAUTION! Use only recommended oils and cleaning materials. Never spray liquids directly on machine.

Accessories

Standard accessories included with Bernina 730.

AccessoryPurpose
Standard presser footGeneral sewing
Zipper footZipper installation
Buttonhole footAutomatic buttonholes
Overcasting footEdge finishing
Blind hem footInvisible hemming
Quilting footQuilting projects
Additional bobbinsThread storage
NeedlesReplacement needles
ScrewdriversMaintenance tools
Dust coverMachine protection

Regulatory Information

CE certified: Complies with European safety standards. Copyright © 2025 Bernina International AG; all rights reserved. For technical support and service, contact authorized Bernina dealers or visit www.bernina.com. Manufacturer: Bernina International AG, Switzerland.

Troubleshooting

SymptomPossible CauseCorrective Action
Machine won't startPower connectionCheck power cord connection; ensure outlet is working; check power switch.
Thread breakingTension/thread qualityRe-thread machine; check tension settings; use quality thread.
Uneven stitchesThreading/tensionRe-thread upper and lower threads; clean bobbin area; adjust tension.
Needle breakingInstallation/fabricEnsure needle is properly installed; use correct needle for fabric; avoid pulling fabric.
Bobbin issuesWinding/insertionRewind bobbin evenly; ensure bobbin is inserted correctly; clean bobbin case.
Skip stitchesNeedle/blunt needleReplace needle; ensure correct needle type; check needle installation.
Unusual noiseLint/mechanical issueClean lint from bobbin area; check for thread jams; contact service if persistent.

Service: Contact authorized Bernina dealer for professional service. Warranty may be void if serviced by unauthorized personnel.

Support: www.bernina.com or contact local authorized dealer

Bernina 730 Sewing Machine Manual © - All Rights Reserved 2025