Bernina 730 Record Sewing Machine Manual

The Bernina 730 Record is a high-quality mechanical sewing machine known for its precision stitching, durability, and versatile features. This Swiss-engineered machine offers straight stitch, zigzag, buttonhole, and decorative stitch capabilities with manual controls. Features include built-in stitch patterns, adjustable stitch length and width, free arm capability, built-in needle threader, and various presser feet for different sewing applications. Below are key sections covering operation, maintenance, troubleshooting, and technical specifications.

1. Features at a Glance 2. Machine Setup 3. Basic Operation 4. Technical Specifications 5. Controls and Settings 6. Stitch Selection 7. Maintenance & Cleaning 8. Accessories 9. Troubleshooting 10. Warranty Information

Features at a Glance

Key components: Mechanical sewing head, stitch pattern dial, tension control, built-in needle threader, free arm, bobbin system, and various presser feet.

FeatureDescription
Stitch PatternsStraight, zigzag, buttonhole, and decorative stitches
Stitch Length ControlAdjustable from 0-4 mm
Stitch Width ControlAdjustable from 0-5 mm for zigzag
Built-in Needle ThreaderEasy needle threading assistance
Free ArmRemovable extension table for cylindrical sewing
Bobbin SystemFront-loading bobbin with clear cover
Tension ControlManual dial for upper thread tension
Presser FeetMultiple feet included for various applications
Reverse StitchBuilt-in reverse stitching capability
Power SystemFoot pedal controlled motor

Machine Setup

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

  1. Position machine: Ensure stable, level surface with adequate lighting.
  2. Connect power: Plug foot pedal into machine, then plug into wall outlet.
  3. Install needle: Loosen needle clamp, insert needle with flat side to back, tighten securely.
  4. Wind bobbin: Follow bobbin winding instructions in manual.
  5. Thread machine: Follow threading diagram for upper and lower threading.

WARNING! Always unplug machine when changing needles or performing maintenance. Keep fingers away from moving parts.

Basic Operation

Power on machine; begin with basic straight stitching.

  1. Select stitch: Turn pattern dial to desired stitch setting.
  2. Adjust settings: Set stitch length and width according to fabric type.
  3. Test stitch: Use scrap fabric to test tension and stitch quality.
  4. Begin sewing: Place fabric under presser foot, lower foot, and gently press foot pedal.
  5. Guide fabric: Let machine feed fabric; do not pull or push forcefully.

CAUTION! Always lower presser foot before sewing. Never force fabric through machine.

Technical Specifications

Controls and Settings

Main controls located on front and side of machine. Stitch selection via pattern dial.

Front Panel: Stitch pattern dial, stitch length control, stitch width control, reverse stitch button, tension dial.

Stitch Length: 0-4 mm adjustment for stitch density. Stitch Width: 0-5 mm for zigzag and decorative stitches. Tension: Adjust for different thread and fabric types. Reverse: Engage for back-tacking and reinforcement. Pattern Selection: Turn dial to select from straight, zigzag, stretch, and decorative stitches.

Stitch Selection

Choose appropriate stitch for your sewing project.

  1. Straight Stitch: Basic sewing, seams, topstitching (position 0)
  2. Zigzag Stitch: Finishing edges, appliqué, stretch fabrics
  3. Buttonhole: 4-step buttonhole for garments
  4. Blind Hem: Nearly invisible hemming
  5. Decorative: Various pattern stitches for embellishment

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

Maintenance & Cleaning

Regular maintenance ensures optimal performance and longevity.

  1. Daily: Brush out lint from bobbin area and feed dogs
  2. Weekly: Oil moving parts as indicated in manual
  3. Monthly: Clean and oil hook race mechanism
  4. As needed: Replace needle after 8-10 hours of sewing

WARNING! Always unplug machine before cleaning or maintenance. Use only Bernina-approved oil.

Accessories

Standard accessories included with Bernina 730 Record.

AccessoryPurpose
Standard Presser FootGeneral sewing
Zipper FootInstalling zippers
Buttonhole FootCreating buttonholes
Blind Hem FootHemming garments
Seam RipperRemoving stitches
BrushCleaning lint
Additional BobbinsThread storage
ScrewdriverNeedle replacement

Troubleshooting

SymptomPossible CauseCorrective Action
Thread breakingIncorrect tension/threadingRethread machine; adjust tension; check for burrs on needle
Skip stitchesWrong needle/damaged needleReplace needle; ensure correct needle type for fabric
Machine jamsThread buildup in bobbinRemove bobbin case; clean thoroughly; rethread
Uneven stitchesTension issuesAdjust upper and lower tension; test on scrap fabric
Machine won't runPower/pedal issuesCheck power connection; inspect foot pedal cord

Service: Contact authorized Bernina dealer for professional service.

Warranty Information

Bernina 730 Record comes with limited warranty covering manufacturing defects. Warranty registration required within 30 days of purchase. For warranty claims, contact authorized Bernina dealer with proof of purchase. Warranty does not cover damage from misuse, improper maintenance, or unauthorized repairs.

For technical support, visit www.bernina.com or contact your local authorized Bernina dealer.

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