Bernette Sewing Machine 715 Manual

The Bernette 715 is a versatile electronic sewing machine featuring 15 built-in stitches, 4-step buttonhole, free arm capability, built-in needle threader, stitch length and width adjustment, reverse sewing function, drop feed for free-motion sewing, LED lighting, and variable speed control. Powered by standard household outlet with foot pedal control. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

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

Features at a Glance

Key components: Electronic stitch selection, free arm, built-in needle threader, LED work light, foot pedal control, accessory compartment.

FeatureDescription
Built-in stitches15 utility and decorative stitches including stretch stitches
4-step buttonholeAutomatic buttonhole function with precise sizing
Free arm capabilityRemovable extension table for sewing sleeves and cuffs
Built-in needle threaderEasy threading assistance
LED work lightBright illumination of sewing area
Stitch length adjustmentAdjustable from 0-4mm
Stitch width adjustmentAdjustable up to 5mm
Reverse sewingReinforce seams with reverse stitch button
Drop feed mechanismFree-motion sewing capability
Variable speed controlFoot pedal with speed adjustment

Unpacking and Setup

Unpack all components and inspect for damage. Place on stable surface.

  1. Remove machine from packaging: Lift carefully from carrying case.
  2. Attach extension table: Slide into position until it clicks.
  3. Install foot pedal: Connect to power cord socket.
  4. Plug into power outlet: Use standard household outlet.
  5. Install needle: Loosen needle clamp screw, insert needle with flat side to back.
  6. Wind bobbin: Follow threading diagram for proper bobbin winding.

WARNING! Machine is heavy; lift with both hands. Ensure stable work surface.

First-Time Operation

Power on machine; follow setup procedures.

  1. Thread upper thread: Follow numbered threading path on machine.
  2. Insert bobbin: Place bobbin in case with thread unwinding counterclockwise.
  3. Select stitch: Turn stitch selection dial to desired pattern.
  4. Adjust settings: Set stitch length and width as needed.
  5. Test sew: Use scrap fabric to test stitch quality.
  6. Practice basic stitches: Straight stitch, zigzag, and buttonhole.

CAUTION! Keep fingers away from moving needle. Always turn off when threading.

Technical Specifications

Controls and Functions

Main controls: Stitch selection dial, stitch length dial, stitch width dial, reverse button, bobbin winder, handwheel.

Stitch Selection: Turn dial to select from 15 built-in stitches. Stitch Length: Adjust from 0 (darning) to 4mm (basting). Stitch Width: Adjust zigzag and decorative stitch width. Reverse: Hold button to reinforce seams. Bobbin Winder: Push bobbin to right position for winding. Handwheel: Manual needle positioning.

Stitch Selection Guide

Utility stitches: Straight stitch (1-4), zigzag (5), stretch stitches (6-8). Decorative stitches: Shell stitch (9), multiple zigzag (10-12), blind hem (13), overcast (14), buttonhole (15).

  1. Straight Stitch: Basic sewing, topstitching
  2. Zigzag Stitch: Seam finishing, appliqué
  3. Three-Step Zigzag: Elastic application, mending
  4. Blind Hem: Nearly invisible hemming
  5. Overcast Stitch: Seam finishing without overlock
  6. Shell Stitch: Decorative edge finishing
  7. Buttonhole: Automatic 4-step buttonhole

Threading and Bobbin

Upper threading: Follow numbered path from spool pin to needle. Bobbin: Wind and insert properly.

  1. Raise presser foot and needle to highest position.
  2. Place spool on pin, thread through first guide.
  3. Follow threading path: Down, up, around tension discs.
  4. Thread take-up lever from right to left.
  5. Thread needle from front to back using needle threader.
  6. Wind bobbin: Place empty bobbin on winder, thread through tension.
  7. Insert bobbin: Drop into case with thread unwinding counterclockwise.

Tip: Always pull thread tails to back before starting to sew.

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

  1. Clean lint: Remove needle plate and clean bobbin area regularly.
  2. Oil machine: Apply sewing machine oil to moving parts as specified.
  3. Change needle: Replace after 8-10 hours of sewing or if damaged.
  4. Clean exterior: Use soft, dry cloth only.

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

Accessories

Standard accessories included: Zipper foot, buttonhole foot, blind hem foot, darning plate, seam ripper, cleaning brush, spare needles, bobbins, screwdriver, spool caps.

AccessoryUse
Zipper FootInstalling zippers and piping
Buttonhole FootCreating perfect buttonholes
Blind Hem FootNearly invisible hemming
Darning PlateFree-motion sewing and darning
Seam RipperRemoving stitches

Safety Information

Important safety precautions for operation.

WARNING! Never operate with damaged cord or plug. Keep away from children.

Troubleshooting

SymptomPossible CauseCorrective Action
Needle breaksWrong needle/bent needleReplace needle; ensure correct insertion
Thread bunchingImproper threading/tensionRethread completely; check bobbin
Skipped stitchesDull needle/wrong needleReplace needle; use correct type for fabric
Machine won't runPower/pedal issueCheck power connection; test foot pedal
Uneven stitchesTension issuesAdjust upper and bobbin tension
Buttonhole problemsStitch setting/footUse buttonhole foot; follow 4-step sequence

Service: Contact authorized Bernette service center for repairs.

Support: www.bernette.com or customer service hotline

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