Bernette 730 Sewing Machine Manual

The Bernette 730 is a versatile electronic sewing machine with 30 built-in stitches, one-step buttonhole, automatic needle threader, adjustable stitch length and width, free arm capability, LED lighting, and multiple presser feet. Powered by standard household electrical outlet. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Accessories 7. Basic Sewing Operations 8. Special Functions 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Electronic sewing machine with built-in stitches, automatic functions, and multiple accessories.

FeatureDescription
Built-in stitches30 different stitch patterns including utility, decorative, and stretch stitches
One-step buttonholeAutomatic buttonhole creation with consistent results
Automatic needle threaderEasy threading system for quick setup
Free arm capabilityRemovable extension table for sewing sleeves and cuffs
LED lightingBright illumination of sewing area
Stitch length adjustmentAdjustable from 0-4mm
Stitch width adjustmentAdjustable up to 5mm
Reverse stitch buttonFor reinforcing seams
Speed control sliderAdjustable sewing speed
Presser foot pressureAdjustable for different fabric types

Installation

Unpack and inspect contents. Place on stable sewing table.

  1. Remove machine from packaging: Carefully lift machine from box.
  2. Attach extension table: Slide into position until it clicks.
  3. Install foot controller: Plug into machine's foot controller port.
  4. Connect power: Plug power cord into machine and electrical outlet.
  5. Install needle: Loosen needle clamp screw, insert needle with flat side to back.
  6. Wind bobbin: Follow bobbin winding instructions in manual.

WARNING! Keep fingers away from needle area during operation. Always turn off when threading or changing accessories.

First-Time Setup

Power on machine; follow setup procedures.

  1. Thread machine: Use automatic needle threader for upper threading.
  2. Insert bobbin: Place bobbin in bobbin case with thread pulling counterclockwise.
  3. Select stitch: Choose desired stitch pattern using stitch selection dial.
  4. Adjust settings: Set stitch length and width according to fabric type.
  5. Attach presser foot: Select appropriate foot for chosen stitch.
  6. Test sew: Practice on scrap fabric before starting project.

CAUTION! Ensure proper needle installation to prevent breakage and damage.

Specifications

Controls and Settings

Access functions via control panel and dials. Front Panel: Stitch selection dial, stitch length dial, stitch width dial, reverse button.

Additional Controls: Power switch, bobbin winder, handwheel, presser foot lever, thread tension dial.

Stitch Selection: Turn dial to choose from 30 built-in stitches. Stitch Length: Adjust for fabric thickness (shorter for delicate, longer for heavy). Stitch Width: Adjust for zigzag and decorative stitches. Tension: Adjust thread tension for balanced stitches. Reverse: Hold button for backstitching at beginning and end of seams.

Connecting Accessories

Presser Feet: Snap-on system for quick changes. Additional Accessories: Extension table, seam ripper, needles, bobbins, spool caps.

  1. Turn off machine before changing accessories.
  2. Align presser foot with bar and lower lever to lock.
  3. Ensure proper needle installation for each foot type.
  4. Use correct foot for specific techniques (zipper, buttonhole, etc.).

Tip: Always raise needle to highest position before changing presser feet.

Basic Sewing Operations

Supports various sewing techniques and fabric types.

  1. Straight stitch: Select stitch pattern 1, adjust length as needed.
  2. Zigzag stitch: Select appropriate zigzag pattern, adjust width.
  3. Buttonhole: Select buttonhole stitch, follow automatic sequence.
  4. Decorative stitches: Choose from built-in decorative patterns.
  5. Reverse stitching: Hold reverse button to reinforce seams.
  6. Free arm sewing: Remove extension table for circular items.
  7. Gathering: Use longer stitch length with tight upper tension.
  8. Topstitching: Use longer stitch length and appropriate thread.

WARNING! Never pull fabric while sewing; let feed dogs move fabric evenly.

Special Functions

Automatic Needle Threader: Lower lever and hook thread through guide. One-Step Buttonhole: Automatic measurement and stitching. Stitch Memory: Remembers settings when powered off. Needle Stop Up/Down: Programmable needle position.

Care & Maintenance

Unplug before cleaning. Regular oiling as specified in manual. Clean lint buildup from bobbin area frequently.

CAUTION! Use only recommended sewing machine oil. Keep machine covered when not in use to prevent dust accumulation.

Regulatory Information

CE certified for European market. Complies with relevant safety standards for household sewing machines. Copyright © Bernette; trademarks of BERNINA International AG. For support, visit www.bernette.com or contact authorized service centers.

Troubleshooting

SymptomPossible CauseCorrective Action
Machine won't startPower connection/foot controllerCheck power cord connection; ensure foot controller is plugged in properly.
Thread breakingTension/needle issuesCheck thread tension; replace needle; ensure proper threading.
Uneven stitchesTension/threadingRe-thread both upper and lower threads; adjust tension settings.
Needle breakingBent needle/wrong installationReplace needle; ensure correct installation with flat side to back.
Fabric not feedingFeed dogs/ presser footCheck feed dog position; ensure presser foot is lowered.

Reset: Turn machine off and on to reset electronic functions.

Service: Contact authorized Bernette service center; www.bernette.com

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