Necchi Sewing Machine Manual Model 3735 PDF

The Necchi Model 3735 is a versatile household sewing machine featuring multiple stitch patterns, adjustable stitch length and width, built-in buttonholer, free arm capability, automatic needle threading, and drop feed for darning and quilting. This manual provides comprehensive instructions for setup, operation, maintenance, and troubleshooting of your Necchi 3735 sewing machine.

Features at a Glance

Key components: Main body with free arm, stitch selection dial, reverse stitch lever, bobbin winder, presser foot lever, feed dog control.

Unpacking and Setup

Carefully unpack all components and inspect for damage.

1. Remove machine from packaging: Lift by carrying handle, not by free arm.
2. Attach power cord: Plug into machine and wall outlet (120V AC).
3. Install foot control: Connect to machine port, place on floor.
4. Attach extension table: Snap into position for flat sewing surface.
5. Install needle: Loosen needle clamp screw, insert needle with flat side to back.

WARNING! Machine is heavy; use both hands when lifting. Ensure stable surface placement.

First-Time Operation

Prepare machine for initial use following these steps.

1. Wind bobbin: Place thread on spool pin, guide through bobbin winder tension.
2. Insert bobbin: Drop bobbin into case with thread counterclockwise.
3. Thread upper thread: Follow numbered threading path on machine.
4. Use needle threader: Pull lever down and through needle eye.
5. Select stitch: Turn pattern dial to desired stitch setting.
6. Test sew: Use scrap fabric to check tension and stitch quality.

CAUTION! Keep fingers away from needle area during operation.

Technical Specifications

• Model: Necchi 3735
• Stitches: 12 built-in patterns
• Stitch Length: 0-4mm adjustable
• Stitch Width: Up to 5mm for zigzag
• Buttonhole: One-step automatic
• Needle System: 130/705 H household
• Bobbin: Class 15 transparent
• Max Sewing Speed: 800 stitches per minute
• Power Supply: 120V AC, 60Hz
• Machine Weight: 12.5 lbs (5.7 kg)

Controls and Functions

Main controls located on front and top of machine body.

Front Panel: Stitch pattern dial, stitch length dial, stitch width dial, reverse stitch button.

Top Features: Spool pins, bobbin winder, handwheel, presser foot lever, needle position.

Stitch Selection: Turn pattern dial to select from straight, zigzag, stretch, blind hem, decorative stitches. Stitch Length: Adjust for fabric thickness (0-4mm). Stitch Width: Control zigzag width (0-5mm). Reverse: Hold button for backstitching. Feed Dog: Lower for free-motion work.

Stitch Selection Guide

Recommended settings for common sewing tasks.

1. Straight Stitch (Position 1): General sewing, length 2.5mm
2. Zigzag Stitch (Position 2): Overcasting, width 3-4mm
3. Blind Hem (Position 4): Hemming, length 2mm, width 2mm
4. Stretch Stitch (Position 6): Knits and stretch fabrics
5. Decorative Stitches (7-12): Embellishments, adjust as desired
6. Buttonhole (B): Automatic one-step, test on scrap fabric first

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

Threading and Bobbin

Proper threading ensures smooth operation and quality stitches.

1. Upper Threading: Follow numbered path from spool pin to needle.
2. Needle Threader: Pull lever down, hook thread, return lever.
3. Bobbin Winding: Place thread on spool pin, through guide, wind evenly.
4. Bobbin Insertion: Drop into case with thread counterclockwise.
5. Bring Up Bobbin Thread: Hold upper thread, turn handwheel toward you.
6. Tension Adjustment: Upper tension dial (2-4 for most fabrics).

WARNING! Ensure machine is off when threading. Always raise needle to highest position.

Maintenance & Cleaning

Regular maintenance ensures optimal performance and longevity.

Daily: Brush lint from bobbin area and feed dogs. Weekly: Oil moving parts with sewing machine oil. Monthly: Remove needle plate for thorough cleaning.

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

Accessories

Standard accessories included with Necchi 3735.

Safety Information

Important safety precautions for operating your sewing machine.

Always unplug machine when not in use. Keep fingers away from moving needle. Do not pull fabric while sewing. Use proper needle for fabric type. Ensure adequate lighting. Keep machine clean and dry. Store in dry location away from children.

Troubleshooting

Service: For technical support, contact authorized Necchi service center.

Warranty: 25-year limited warranty on mechanical parts.