Necchi BU Nova Sewing Machine Manual

The Necchi BU Nova is a versatile household sewing machine featuring zigzag stitching, built-in decorative stitches, automatic buttonholer, free arm capability, adjustable stitch length and width, built-in needle threader, drop feed for darning and embroidery, and multiple presser feet. Powered by standard household electrical outlet. 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. Specifications 5. Controls and Settings 6. Stitch Selection 7. Maintenance & Cleaning 8. Accessories 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Main body with free arm, Bobbin case, Presser feet, Stitch selection dial, Tension control, Foot pedal, Power cord.

Feature	Description
Stitch selection dial	For selecting straight, zigzag, and decorative stitches
Tension control dial	Adjusts thread tension for different fabrics
Presser foot lever	Raises and lowers presser foot
Foot pedal	Controls sewing speed
Bobbin winder	Automatically winds bobbin
Free arm	For sewing sleeves and circular items
Built-in needle threader	Assists with threading needle
Drop feed lever	Lowers feed dogs for darning and embroidery
Reverse stitch lever	For reinforcing stitches
Stitch length control	Adjusts stitch length from 0-4mm

Installation & Setup

Unpack and inspect contents. Place on stable surface at comfortable working height.

Connect power: Plug power cord into electrical outlet.
Install needle: Loosen needle clamp screw, insert needle with flat side to back, tighten screw.
Wind bobbin: Place bobbin on winder, thread through tension disc, press pedal to wind.
Insert bobbin: Open bobbin case, insert bobbin with thread unwinding counterclockwise.
Thread machine: Follow numbered threading guide on machine.

WARNING! Always unplug machine when changing needles or performing maintenance. Keep fingers away from moving parts.

First-Time Operation

Power on machine; test on scrap fabric first.

Select straight stitch: Turn stitch selection dial to straight stitch position.
Set stitch length: Adjust to medium setting (2.5) for general sewing.
Thread machine: Follow threading path indicated on machine.
Practice sewing: Use scrap fabric to test stitch quality and tension.
Adjust tension: If stitches are loose or tight, adjust tension dial gradually.

CAUTION! Always start with needle in highest position. Never force fabric through machine.

Specifications

Machine Type: Household sewing machine with free arm
Stitches: Straight, zigzag, multiple decorative stitches
Stitch Length: 0-4mm adjustable
Stitch Width: 0-5mm adjustable for zigzag
Buttonhole: 4-step automatic
Needle System: HA-1 household needles
Bobbin: Class 15 transparent
Power Source: Standard household electrical outlet
Speed Control: Foot pedal controlled
Weight: Approximately 15 lbs

Controls and Settings

Main controls located on front and side of machine.

Front Panel: Stitch selection dial, Stitch length control, Stitch width control, Reverse stitch lever, Bobbin winder.

Side Controls: Tension dial, Presser foot pressure adjustment, Drop feed lever.

Basic Settings: Stitch selection (straight, zigzag, decorative), Stitch length (0-4mm), Stitch width (0-5mm), Tension (1-9 for different fabrics), Presser foot pressure (adjustable for thick/thin fabrics).

Stitch Selection

Available stitches: Straight, Zigzag, Multiple decorative stitches, Blind hem, Elastic stitch.

Straight stitch: For basic sewing and seams
Zigzag stitch: For finishing edges and stretch fabrics
Decorative stitches: Select from built-in patterns
Buttonhole: 4-step process for perfect buttonholes
Blind hem: Nearly invisible hemming
Elastic stitch: For sewing elastic and smocking

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

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

Daily: Brush out lint from bobbin area and feed dogs
Weekly: Oil moving parts with sewing machine oil
Monthly: Clean tension discs with soft brush
As needed: Replace needle after 8-10 hours of sewing

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

Accessories

Included accessories: Zipper foot, Buttonhole foot, Blind hem foot, Darning plate, Seam ripper, Screwdriver, Additional bobbins, Spool caps.

Optional accessories: Walking foot, Quilting foot, Rolled hem foot, Gathering foot.

Regulatory Information

UL Listed: Complies with safety standards for household sewing machines. Copyright © 2025 Necchi; trademarks of Necchi Corporation. For technical support, visit www.necchi.com or contact 1-800-555-NECCHI. Made for household use only.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Thread breaking	Incorrect threading/tension	Rethread machine; reduce tension; check for burrs on needle.
Needle breaking	Wrong needle/bent needle	Replace needle; ensure correct insertion; don't pull fabric.
Uneven stitches	Tension issues	Adjust upper and bobbin tension; rethread completely.
Machine jams	Thread buildup	Remove bobbin case; clean area; rethread carefully.
No power	Power connection	Check power cord; ensure foot pedal is connected properly.

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

Service: 1-800-555-NECCHI; www.necchi.com