Omega Sewing Machine Model 3730M Manual

The Omega Sewing Machine Model 3730M is a versatile mechanical sewing machine featuring 30 built-in stitches, 4-step buttonhole, free arm capability, built-in needle threader, adjustable stitch length and width, reverse sewing function, drop feed for free-motion sewing, and built-in light. Powered by 110V AC, 60Hz. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Mechanical sewing machine with 30 stitches, free arm, built-in needle threader, stitch length/width controls, reverse lever, bobbin winder, and accessory compartment.

Installation & Setup

Unpack and inspect contents. Place on stable surface at proper height.

1. Remove machine from packaging: Lift carefully from carrying case.
2. Set up work area: Ensure stable table with adequate lighting.
3. Connect foot pedal: Plug into machine's foot control port.
4. Connect power: Plug power cord into 110V outlet.
5. Install needle: Loosen needle clamp screw, insert needle with flat side to back.
6. Wind bobbin: Follow bobbin winding instructions.
7. Thread machine: Follow threading diagram on machine.

WARNING! Keep fingers away from needle area during operation. Always turn off when not in use.

Basic Operation

Power on machine; test stitch on scrap fabric first.

1. Select stitch: Turn stitch selector dial to desired pattern.
2. Adjust settings: Set stitch length and width as needed.
3. Position fabric: Lower presser foot over fabric.
4. Start sewing: Press foot pedal gently to begin.
5. Reverse stitching: Hold reverse lever to reinforce stitches.
6. Finish sewing: Raise needle to highest position before removing fabric.

CAUTION! Never pull fabric while sewing. Let feed dogs move fabric naturally.

Specifications

• Model: 3730M Mechanical Sewing Machine
• Stitches: 30 built-in stitches
• Buttonhole: 4-step manual buttonhole
• Stitch Length: 0-4mm adjustable
• Stitch Width: 0-5mm adjustable
• Max Sewing Speed: 800 stitches per minute
• Presser Feet: 4 included (all-purpose, zipper, buttonhole, button sewing)
• Free Arm: Yes, with removable extension table
• Power Source: 110V AC, 60Hz
• Machine Weight: 12.5 lbs (5.7 kg)

Controls and Settings

Front Panel: Stitch selector dial, stitch length dial, stitch width dial, reverse lever, bobbin winder, handwheel.

Stitch Selection: Turn dial to select from 30 stitch patterns. Stitch Length: Adjust from 0 (darning) to 4mm (basting). Stitch Width: Adjust zigzag and decorative stitch width. Reverse Lever: Hold down for backward stitching. Handwheel: Manual needle positioning. Bobbin Winder: Wind bobbin with thread.

Stitch Selection

30 built-in stitches for various sewing applications.

1. Straight stitches: 1-5 for basic sewing and reinforcement
2. Zigzag stitches: 6-10 for finishing edges and appliqué
3. Blind hem stitches: 11-12 for invisible hems
4. Elastic stitches: 13-15 for stretch fabrics
5. Decorative stitches: 16-30 for embellishment
6. Buttonhole: 4-step process for perfect buttonholes

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

Maintenance & Cleaning

Regular maintenance ensures optimal performance and longevity.

1. Daily: Brush out lint from bobbin area and feed dogs
2. Weekly: Oil moving parts with sewing machine oil
3. Monthly: Clean race hook and surrounding areas
4. As needed: Replace needle after 8-10 hours of sewing
5. Storage: Cover machine when not in use

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

Accessories

Standard accessories included with Omega 3730M:

Regulatory Information

UL Listed: Certified for electrical safety in household use. Copyright © 2024 Omega Sewing Machines; trademarks of Omega Manufacturing Co. For technical support, visit www.omegasewing.com or contact 1-800-555-SEWING. Made for household and light commercial use.

Troubleshooting

Service: 1-800-555-SEWING; www.omegasewing.com