Singer Model HD6700C Manual

The Singer Model HD6700C is a heavy-duty sewing machine designed for home use, featuring a powerful motor, multiple stitch patterns, automatic needle threader, adjustable stitch length and width, built-in buttonhole function, free arm capability, and LED lighting. Powered by standard household current. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Unpacking and Setup 3. First-Time Operation 4. Specifications 5. Controls and Functions 6. Stitch Selection and Settings 8. Maintenance and Cleaning 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Heavy-duty metal frame, built-in stitch patterns, automatic needle threader, free arm, accessory storage, foot pedal control, LED work light.

Feature	Description
Stitch Patterns	Multiple built-in stitches including straight, zigzag, decorative, and stretch
Automatic Needle Threader	Easily threads needle with lever mechanism
Free Arm	Removable flatbed for sewing sleeves and cuffs
Buttonhole Function	One-step automatic buttonhole
Stitch Length/Width Control	Adjustable dials for customization
LED Lighting	Bright illumination of sewing area
Power/Speed Control	Foot pedal with variable speed
Bobbin System	Top-loading, jam-resistant bobbin
Presser Feet	Multiple included feet for different techniques
Accessory Storage	Built-in compartment for feet, bobbins, needles

Unpacking and Setup

Carefully unpack all components and place on stable surface.

Remove machine from box: Lift using handles; avoid lifting by accessory compartment.
Attach power cord: Plug into machine port, then into wall outlet.
Install foot pedal: Connect to machine port, place on floor.
Attach accessory tray: Slide into position if detachable.
Insert needle: Use screwdriver to tighten needle clamp screw.

WARNING! Machine is heavy; use proper lifting technique. Ensure work area is clean and well-lit.

First-Time Operation

Prepare machine for initial use.

Wind bobbin: Place thread on spool pin, guide through tension, wind onto bobbin.
Insert bobbin: Drop into bobbin case following directional arrows.
Thread upper thread: Follow numbered path on machine; use automatic threader.
Select stitch: Turn pattern dial to desired stitch.
Test sew: Place scrap fabric under presser foot; depress pedal slowly.

CAUTION! Keep fingers away from needle area during operation. Always turn off when threading or changing accessories.

Specifications

Model: HD6700C Heavy Duty
Stitches: 10+ built-in patterns
Stitch Length: Adjustable up to 4mm
Stitch Width: Adjustable up to 5mm
Speed: Up to 750 stitches per minute
Needle Positions: Left, center, right
Presser Feet: All-purpose, zipper, buttonhole, button sewing
Lighting: LED bulb
Power: 110V, 60Hz (US standard)
Weight: Approximately 15 lbs

Controls and Functions

Main controls located on front and side of machine.

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

Side/Back: Power switch, power cord port, foot pedal port, handwheel, bobbin winder spindle.

Basic Operations: Power on/off with switch. Select stitch with pattern dial. Adjust length/width with respective dials. Engage reverse for backstitching. Control speed with foot pedal pressure.

Stitch Selection and Settings

Using the built-in stitch patterns and adjustments.

Straight stitch: For seams, topstitching; adjust length for fabric weight.
Zigzag stitch: For finishing edges, sewing stretch fabrics; adjust width.
Decorative stitches: Select pattern; may require stabilizer for lightweight fabrics.
Buttonhole: Select buttonhole stitch; place button in foot; machine sews automatically.
Blind hem: Use blind hem foot and stitch; fold fabric appropriately.

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

Maintenance and Cleaning

Regular maintenance ensures optimal performance.

Daily: Brush out lint from bobbin area and feed dogs.
Weekly: Oil moving parts as indicated in manual (use sewing machine oil only).
Monthly: Clean tension discs with unwaxed dental floss.
As needed: Replace needle after 8-10 hours of sewing or if damaged.

CAUTION! Always unplug machine before cleaning or maintenance. Use only recommended oils.

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. Made for household use only.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Machine won't start	Power connection	Check power cord connections; ensure switch is on.
Thread bunching underneath	Incorrect threading/tension	Rethread top and bobbin; adjust tension; clean bobbin area.
Needle breaks	Wrong needle/bent needle	Replace with correct type; ensure inserted fully; don't pull fabric.
Uneven stitches	Tension issues	Adjust thread tension; ensure proper threading.
Machine skips stitches	Dull/bent needle	Replace needle; check needle size for fabric.
Noisy operation	Lint/lack of oil	Clean and oil machine; check for loose parts.

Reset: Unplug for 5 minutes if electronic issues occur.

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