Bernette H70 Sewing Machine Manual

The Bernette H70 is a high-performance computerized sewing machine with advanced features including automatic thread tension, built-in stitches, embroidery capabilities, LCD display, automatic needle threader, speed control, and various presser feet options. Designed for both beginners and experienced sewers, it offers precision stitching and user-friendly operation. 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. Technical Specifications 5. Controls and Functions 6. Stitch Selection & Settings 7. Threading & Bobbin Winding 8. Maintenance & Cleaning 9. Accessories Included 10. Safety Information 11. Troubleshooting

Features at a Glance

Key components: Computerized control panel, LCD display, automatic needle threader, built-in stitches, embroidery unit, feed dog control, and various presser feet.

FeatureDescription
LCD DisplayShows stitch selection, settings, and embroidery patterns
Automatic Needle ThreaderEasy threading with push-button operation
Built-in Stitches70 utility, decorative, and stretch stitches
Embroidery CapabilityBuilt-in designs and USB connectivity for custom patterns
Speed ControlAdjustable sewing speed from slow to fast
Automatic Thread TensionComputer-controlled for perfect stitches
Buttonhole Styles7 one-step automatic buttonholes
Presser FeetMultiple specialized feet included
Needle PositionsAdjustable left/right needle positioning
Free ArmConvertible for sewing sleeves and cuffs

Installation & Setup

Unpack and inspect all components. Place on stable, flat surface.

  1. Remove packaging materials and protective covers from machine.
  2. Attach power cord to machine and plug into appropriate power outlet.
  3. Install foot controller and connect to machine.
  4. Attach embroidery unit if using embroidery functions.
  5. Install needle and thread machine following threading diagram.

WARNING! Machine is heavy; lift with care using both hands. Ensure stable surface to prevent tipping.

First-Time Operation

Power on machine; familiarize yourself with basic functions.

  1. Turn power switch to ON position; LCD display will illuminate.
  2. Select basic straight stitch using stitch selection buttons.
  3. Practice threading with automatic needle threader.
  4. Wind bobbin using built-in bobbin winder.
  5. Insert bobbin into bobbin case following directional arrows.
  6. Test stitch on scrap fabric to adjust tension if needed.

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

Technical Specifications

Controls and Functions

Access functions via control panel and LCD display. Front Panel: Power switch, stitch selection buttons, reverse stitch, needle up/down, speed control slider.

Control Panel: Stitch selection, stitch length/width adjustment, mirror image, memory functions, embroidery pattern selection, start/stop button.

Basic Settings: Stitch selection, length adjustment (0-5mm), width adjustment (0-7mm), needle position, thread tension (automatic), speed control, reverse stitching, automatic thread cutter.

Stitch Selection & Settings

70 built-in stitches organized by category: utility, decorative, stretch, and buttonholes.

  1. Select stitch category using category buttons.
  2. Choose specific stitch number using numeric pad or arrow keys.
  3. Adjust stitch length and width as needed for fabric type.
  4. For buttonholes: Select buttonhole style, place button in foot, machine automatically sews perfect buttonhole.
  5. Use mirror function for symmetrical decorative stitching.

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

Threading & Bobbin Winding

Proper threading ensures smooth operation and quality stitches.

  1. Raise presser foot and needle to highest position.
  2. Place spool on spool pin and follow threading path indicated by numbers.
  3. Use automatic needle threader: Push lever down, hook thread, release lever.
  4. Bobbin winding: Place empty bobbin on winder, thread through tension disc, press foot controller or start button.
  5. Insert bobbin into case with thread following directional arrow.

WARNING! Ensure machine is turned off during threading. Keep hands clear of moving parts.

Maintenance & Cleaning

Regular maintenance ensures optimal performance and longevity.

  1. Unplug machine before cleaning or maintenance.
  2. Remove needle plate and clean lint buildup with brush provided.
  3. Oil machine according to manual instructions using sewing machine oil only.
  4. Wipe exterior with soft, dry cloth.
  5. Replace needle regularly (every 8-10 hours of sewing).

CAUTION! Never use compressed air; it can force lint deeper into mechanism.

Accessories Included

Standard accessories provided with Bernette H70:

Safety Information

FCC Part 15: Class B digital device; complies with interference limits. Always disconnect power when not in use. Keep fingers away from moving needle. Use proper lighting when sewing. Store in dry location away from moisture and extreme temperatures.

For support, visit www.bernette.com or contact authorized service centers.

Troubleshooting

SymptomPossible CauseCorrective Action
Machine not startingPower connectionCheck power cord connection; ensure switch is ON; check outlet
Thread breakingTension/threadingRethread machine; check tension settings; use quality thread
Uneven stitchesNeedle/thread issuesReplace needle; ensure proper threading; clean race area
Fabric not feedingFeed dogsCheck feed dog position; clean under needle plate
Bobbin thread issuesBobbin insertionReinsert bobbin following directional arrows; check bobbin case
Needle breakingBent needle/fabricReplace needle; ensure proper needle size for fabric; check threading

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

Service: Contact authorized Bernette service center for repairs.

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