Bernina 1008 Sewing Machine Service Manual

The Bernina 1008 is a mechanical sewing machine known for its reliability and precision. This service manual covers maintenance, troubleshooting, and repair procedures for technicians and experienced users. The machine features straight and zigzag stitches, built-in buttonhole function, reverse stitching, adjustable stitch length and width, free arm capability, and mechanical operation without electronic components.

1. Features at a Glance 2. Installation and Setup 3. Technical Specifications 4. Controls and Functions 5. Maintenance Procedures 6. Needle and Thread Setup 7. Stitch Adjustment 8. Troubleshooting Common Issues 9. Disassembly Instructions 10. Lubrication Guide 11. Safety Information

Features at a Glance

Key components: Mechanical stitch selection, built-in buttonholer, free arm, accessory compartment, built-in light, drop feed for darning and quilting.

FeatureDescription
Stitch SelectionMechanical dial for straight and zigzag stitches
Buttonhole Function4-step built-in buttonhole mechanism
Stitch LengthAdjustable from 0-4 mm
Stitch WidthAdjustable up to 5 mm for zigzag
Free ArmRemovable accessory compartment for free arm sewing
Reverse StitchLever for reverse stitching to secure seams
Presser Foot PressureAdjustable for different fabric types
Built-in LightIlluminates sewing area
Bobbin SystemFront-loading bobbin with clear cover
Power RequirementsStandard household electrical outlet

Installation and Setup

Unpack machine and inspect for shipping damage. Place on stable surface at comfortable working height.

  1. Remove all packaging materials and protective covers
  2. Attach power cord to machine and plug into grounded outlet
  3. Install needle following proper orientation (flat side to back)
  4. Wind and install bobbin following threading diagram
  5. Thread upper thread through tension discs and take-up lever
  6. Test machine operation with scrap fabric

WARNING! Always unplug machine before performing any maintenance or changing needles.

Technical Specifications

Controls and Functions

Main controls located on right side of machine body. Stitch selection dial, stitch length dial, stitch width dial, reverse stitch lever, handwheel.

Stitch Selection: Turn dial to select straight stitch, zigzag, or buttonhole positions. Stitch Length: Adjust from 0 (darning) to 4 (basting). Stitch Width: Control zigzag width from 0-5 mm. Reverse Stitch: Hold lever down for reverse sewing. Handwheel: Manual control for precise needle positioning.

Maintenance Procedures

Regular maintenance ensures optimal performance and longevity.

  1. Clean lint and dust from bobbin area after each project
  2. Oil moving parts every 3-6 months with sewing machine oil
  3. Check needle for damage before each use
  4. Inspect power cord for wear or damage
  5. Clean feed dogs with small brush
  6. Wipe exterior with soft, dry cloth

CAUTION! Use only sewing machine oil - other oils may damage mechanisms.

Needle and Thread Setup

Proper needle and thread selection is essential for quality stitching.

  1. Needle Installation: Loosen needle clamp screw, insert needle with flat side to back, tighten securely
  2. Bobbin Winding: Place thread on spool pin, guide through tension disc, wind bobbin evenly
  3. Bobbin Insertion: Remove bobbin case, insert bobbin with thread unwinding counterclockwise
  4. Upper Threading: Follow numbered guides from spool to needle
  5. Thread Tension: Adjust upper tension dial for balanced stitches

Tip: Always use same weight thread in bobbin and needle for balanced tension.

Stitch Adjustment

Fine-tuning stitches for different fabrics and applications.

  1. Straight Stitch: Set stitch length 2-2.5 for general sewing
  2. Zigzag Stitch: Adjust width for seam finishing or decorative work
  3. Buttonhole: Follow 4-step sequence marked on stitch selector
  4. Tension Adjustment: Test on scrap fabric; adjust dial higher for tighter tension
  5. Presser Foot Pressure: Adjust screw for thick or delicate fabrics

WARNING! Never force handwheel if machine jams - check for thread jams first.

Troubleshooting Common Issues

SymptomPossible CauseCorrective Action
Thread breakingIncorrect threading/tensionRethread completely; reduce tension; check for burrs on needle
Skip stitchesBent needle/wrong needle typeReplace needle; ensure correct needle for fabric
Uneven stitchesTension imbalanceAdjust upper tension; reinsert bobbin; clean tension discs
Machine won't runPower/mechanical issueCheck power connection; ensure handwheel isn't locked
Bobbin thread bunchingIncorrect bobbin threadingRemove and rethread bobbin; check bobbin case spring
Noisy operationLack of lubrication/lintClean and oil machine; check for loose parts

Disassembly Instructions

For qualified technicians only. Documenting major component access.

  1. Remove top cover screws and lift off cover
  2. Remove face plate to access tension assembly
  3. Remove free arm accessory compartment
  4. Access bobbin mechanism by removing slide plate
  5. Remove needle plate for feed dog access
  6. Lower assembly requires base plate removal

CAUTION! Take photos during disassembly to ensure proper reassembly.

Lubrication Guide

Proper lubrication points and schedule for smooth operation.

WARNING! Wipe excess oil and run machine on scrap fabric to distribute oil.

Safety Information

Important safety precautions for operation and maintenance.

  1. Always unplug machine when not in use or during maintenance
  2. Keep fingers away from moving needle and mechanisms
  3. Use proper lighting to see sewing area clearly
  4. Disconnect power before changing needles or presser feet
  5. Do not operate with damaged power cord
  6. Keep machine clean and free of lint buildup
  7. Store in dry area away from moisture

Service Support: Contact authorized Bernina service center for major repairs. Original parts recommended for replacement.

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