Necchi Sewing Machine Manual Model 3735

The Necchi Model 3735 is a versatile household sewing machine featuring multiple stitch patterns, automatic buttonholer, free arm capability, built-in needle threader, adjustable stitch length and width, reverse stitching function, drop feed for darning and quilting, and built-in LED lighting. Powered by 120V AC, 60Hz. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Free arm sewing surface, built-in stitch patterns, automatic needle threader, LED work light, foot pedal control, accessory storage compartment.

Installation & Setup

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

1. Remove packaging materials and protective covers from machine.
2. Attach power cord to machine and plug into grounded outlet.
3. Install foot pedal and position for comfortable operation.
4. Thread machine following diagram on machine body.
5. Wind and insert bobbin according to instructions.

WARNING! Keep fingers away from needle area during operation. Always unplug machine when not in use or during maintenance.

First-Time Operation

Power on machine; test basic functions before sewing projects.

1. Select straight stitch: Turn stitch selection dial to straight stitch position.
2. Set stitch length: Adjust to medium setting (2.5-3.0).
3. Practice on scrap fabric: Test stitching on fabric scraps.
4. Adjust tension: Check stitch formation and adjust tension if needed.
5. Test reverse: Practice reverse stitching for seam reinforcement.

CAUTION! Always start with needle in highest position. Keep work area well-lit and free of obstructions.

Specifications

• Model: Necchi 3735
• Stitches: 23 built-in stitches
• Stitch Length: Adjustable 0-4mm
• Stitch Width: Adjustable 0-5mm
• Buttonholes: One-step automatic
• Needle System: HA-1, 15x1
• Bobbin: Class 15 transparent
• Lighting: LED work light
• Power: 120V AC, 60Hz
• Warranty: 25-year limited

Controls and Settings

Main controls located on front and side of machine. Stitch selection dial, stitch length dial, stitch width dial, reverse button, bobbin winder.

Stitch Selection: Turn dial to select from 23 built-in stitches. Stitch Length: Adjust from 0 (darning) to 4mm (basting). Stitch Width: Adjust zigzag and decorative stitch width 0-5mm. Reverse: Press and hold for reverse stitching. Tension: Upper thread tension dial 0-9.

Stitch Selection Guide

Comprehensive guide to all 23 built-in stitches and their applications.

1. Straight Stitch: Basic sewing, topstitching (positions 1-2)
2. Zigzag Stitch: Overcasting, appliqué (positions 3-5)
3. Blind Hem: Nearly invisible hems (position 6)
4. Stretch Stitches: Knits and stretch fabrics (positions 7-9)
5. Decorative Stitches: Embellishment (positions 10-18)
6. Buttonhole: Automatic one-step (position 19)

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

Maintenance & Cleaning

Regular maintenance ensures optimal performance and longevity.

1. Daily: Brush lint from bobbin area and feed dogs
2. Weekly: Oil moving parts with sewing machine oil
3. Monthly: Clean tension discs and thread path
4. As needed: Replace needle after 8-10 hours of sewing

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

Accessories

Standard accessories included with Necchi Model 3735.

Regulatory Information

UL Listed: Complies with UL Standard 1278. FCC Part 15: Class B digital device. Copyright © 2025 Necchi Sewing Machine Company. For technical support, visit www.necchi.com or contact 1-800-555-NECCHI. Made in Italy.

Troubleshooting

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