Singer Model 630 Sewing Machine Manual

The Singer Model 630 is a versatile mechanical sewing machine designed for home use, featuring a built-in stitch selection system, adjustable stitch length and width, automatic needle threader, drop-in bobbin system, and multiple presser feet for various sewing techniques. It operates on standard household power (120V AC, 60Hz) and includes essential accessories. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Sewing head with stitch selector dial, Bobbin case and shuttle, Presser foot assembly, Handwheel, Foot controller, Power cord and plug, Accessory box.

Unpacking and Setup

Remove machine from packaging and inspect all parts.

1. Place machine on stable table: Ensure surface is flat and vibration-free.
2. Attach foot controller: Plug into machine port (usually on right side).
3. Connect power: Plug power cord into machine and then into 120V AC outlet.
4. Install needle: Loosen needle clamp screw, insert needle with flat side to back, tighten screw.
5. Attach presser foot: Raise presser foot lever, snap foot into place.

WARNING! Keep fingers away from needle area during setup and operation. Ensure machine is unplugged when attaching accessories.

First-Time Operation

Plug in machine and turn handwheel toward you to raise needle to highest position.

1. Wind bobbin: Place thread spool on pin, guide thread through bobbin winder tension, press bobbin onto winder shaft, engage winder.
2. Insert bobbin: Open bobbin cover, drop bobbin in with thread unwinding counterclockwise, pull thread through slot.
3. Thread upper thread: Follow numbered guides on machine, use automatic threader if available, thread needle from front to back.
4. Draw up bobbin thread: Hold upper thread, turn handwheel one full rotation, pull upper thread to bring bobbin thread up through needle plate.
5. Test sew: Place fabric under presser foot, lower foot, gently press foot controller to start sewing.

CAUTION! Always turn handwheel toward you only. Never force the handwheel.

Specifications

• Machine Type: Mechanical sewing machine.
• Stitches: 10 built-in stitches (straight, zigzag, blind hem, stretch, decorative).
• Stitch Length: Adjustable 0-4 mm.
• Stitch Width: Adjustable 0-5 mm.
• Bobbin: Class 15 transparent bobbin.
• Needle: Standard domestic sewing machine needle (size 11/80 to 16/100).
• Presser Feet: Includes all-purpose foot, zipper foot, buttonhole foot, blind hem foot.
• Power Source: 120V AC, 60Hz.
• Motor: Standard household sewing motor.
• Weight: Approximately 12 lbs (5.4 kg).

Controls and Settings

Main controls located on front and right side of machine.

Stitch Selector Dial: Turn to choose stitch pattern (symbols indicate stitch type). Stitch Length Dial: Higher numbers = longer stitches. Stitch Width Dial: Adjusts width for zigzag and decorative stitches. Reverse Stitch Lever: Press and hold to sew in reverse. Presser Foot Lever: Raises and lowers presser foot. Handwheel: Manual control of needle position. Bobbin Winder: Located on top right, winds bobbin without threading needle.

Stitch Selection and Adjustment

Select stitch pattern based on sewing task.

1. Straight stitch: For seams, topstitching (set width to 0).
2. Zigzag stitch: For finishing edges, appliqué, stretch fabrics.
3. Blind hem stitch: For nearly invisible hems on garments.
4. Decorative stitches: For embellishment (select appropriate pattern).
5. Buttonhole stitch: Use buttonhole foot for consistent buttonholes.

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

Threading and Bobbin Winding

Proper threading is essential for smooth operation.

1. Upper threading: Follow numbered guides from spool pin to needle.
2. Automatic needle threader: Lower lever, hook thread, raise lever to pull thread through needle.
3. Bobbin winding: Disengage clutch by pulling handwheel outward, place spool on pin, thread through bobbin winder tension, press bobbin onto shaft, engage winder until full.
4. Bobbin insertion: Open cover, drop bobbin so thread unwinds counterclockwise, pull thread through slot and under tension spring.

WARNING! Ensure machine is off when threading. Keep thread path clean of lint.

Maintenance & Cleaning

Unplug machine before maintenance. Regular cleaning prevents lint buildup.

1. Remove needle plate: Use screwdriver to loosen screws, lift plate.
2. Clean feed dogs and bobbin area: Use small brush to remove lint and threads.
3. Oil machine: Apply 1-2 drops of sewing machine oil to moving parts as indicated in diagram (usually hook race, needle bar).
4. Replace needle: Change needle after every 8-10 hours of sewing or if damaged.
5. Cover machine: Use dust cover when not in use.

CAUTION! Use only sewing machine oil. Do not use household oils. Wipe excess oil before sewing.

Regulatory Information

UL Listed: Complies with safety standards for household sewing machines. Copyright © Singer Manufacturing Company. For support, visit www.singer.com or contact 1-800-4-SINGER. This product is designed for home use only.

Troubleshooting

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

Service: 1-800-4-SINGER; www.singer.com for authorized service centers.