Husqvarna Viking Emerald 116 Sewing Machine Service Manual

The Husqvarna Viking Emerald 116 is a versatile electronic sewing machine featuring 16 built-in stitches, automatic needle threader, built-in buttonhole, free arm capability, adjustable stitch length and width, drop feed for free-motion sewing, LED lighting, and multiple presser feet options. This service manual covers technical specifications, maintenance procedures, troubleshooting, and repair instructions for qualified technicians.

1. Technical Specifications 2. Machine Components 3. Maintenance Procedures 4. Electrical System 5. Mechanical Adjustments 6. Stitch Quality Issues 7. Tension System 8. Bobbin System 9. Motor and Drive System 10. Safety Information 11. Troubleshooting Guide

Technical Specifications

Detailed technical specifications for the Husqvarna Viking Emerald 116 sewing machine.

Specification	Details
Machine Type	Electronic Free Arm Sewing Machine
Built-in Stitches	16 stitches including utility, decorative, and stretch
Stitch Length	Adjustable up to 4mm
Stitch Width	Adjustable up to 5mm
Buttonholes	1-step automatic buttonhole
Needle Positions	Multiple needle positions
Presser Feet	Includes general purpose, zipper, buttonhole feet
Power Requirements	110-120V, 60Hz
Motor	Electronic DC motor
Weight	Approximately 15 lbs

Machine Components

Key components and their functions in the Husqvarna Viking Emerald 116.

Handwheel: Controls needle position manually
Stitch Selection Dial: Chooses from 16 built-in stitches
Tension Dial: Adjusts upper thread tension
Bobbin Winder: Automatically winds bobbin
Free Arm: For sewing cylindrical items
LED Light: Illuminates sewing area
Automatic Needle Threader: Simplifies needle threading
Drop Feed Lever: Enables free-motion sewing

WARNING! Always unplug machine before performing any maintenance or service procedures.

Maintenance Procedures

Regular maintenance procedures to ensure optimal performance.

Cleaning: Remove lint and dust from bobbin area and feed dogs
Oiling: Apply sewing machine oil to designated points monthly
Needle Replacement: Replace needle after every 8 hours of sewing
Bobbin Case: Clean and inspect bobbin case regularly
Electrical Check: Inspect power cord and foot controller for damage

CAUTION! Use only Husqvarna Viking recommended oils and accessories.

Electrical System

Power Supply: 110-120V AC, 60Hz
Motor Type: Electronic DC motor with speed control
Foot Controller: Variable speed control pedal
Lighting: LED work light with independent switch
Circuit Protection: Built-in fuse for electrical protection
Power Consumption: 70 watts maximum

Mechanical Adjustments

Procedures for mechanical adjustments and calibrations.

Needle Bar Height: Adjust to proper timing position. Hook Timing: Synchronize with needle movement. Feed Dog Height: Adjust for proper fabric feeding. Presser Foot Pressure: Modify for different fabric types.

Use precision tools and follow manufacturer specifications for all adjustments.

Stitch Quality Issues

Common stitch quality problems and their solutions.

Check needle condition and installation
Verify correct thread tension settings
Inspect bobbin winding and insertion
Examine feed dog condition and timing
Check for proper thread path and guides

Tip: Always test stitch quality on scrap fabric before beginning project.

Tension System

Upper and lower tension system maintenance and adjustment.

Upper Tension: Adjust via tension dial; test with balanced stitch
Bobbin Tension: Adjust bobbin case screw if necessary
Tension Discs: Clean regularly to remove lint and residue
Spring Check: Ensure tension spring functions properly
Thread Path: Verify correct threading through all guides

WARNING! Make small adjustments and test frequently to avoid over-tightening.

Bobbin System

Bobbin winding, insertion, and troubleshooting procedures.

Bobbin Winding: Use automatic bobbin winder with thread guide. Insertion: Place bobbin in case with thread pulling counterclockwise. Troubleshooting: Check for proper bobbin tension and thread nesting.

Motor and Drive System

Motor maintenance and drive system components.

Inspect motor brushes regularly for wear. Check drive belt tension and condition. Lubricate moving parts as specified. Test speed consistency across range.

CAUTION! Disconnect power before inspecting electrical components.

Safety Information

Important safety guidelines for service technicians and users.

Always unplug machine during service. Use proper tools and replacement parts. Follow electrical safety procedures. Keep work area clean and organized. Wear safety glasses when appropriate.

Troubleshooting Guide

Symptom	Possible Cause	Corrective Action
Machine won't start	Power connection/fuse	Check power cord; verify outlet; inspect fuse
Poor stitch quality	Needle/tension issues	Replace needle; adjust tension; rethread machine
Thread breaking	Tension/needle problems	Reduce tension; check needle condition; verify threading
Fabric not feeding	Feed dog position	Check drop feed lever; clean feed dogs; adjust height
Unusual noise	Lint/mechanical issues	Clean machine; check for loose parts; lubricate

Reset: Unplug machine for 5 minutes to reset electronic components.

Service: Contact authorized Husqvarna Viking service center for complex repairs.