Singer Sewing Machine Model HD6380M Manual

The Singer HD6380M is a heavy-duty sewing machine designed for home use, featuring a powerful motor, 32 built-in stitches, one-step buttonhole, automatic needle threader, adjustable stitch length and width, top drop-in bobbin system, free arm capability, and multiple presser feet. It operates on 110-120V AC, 60Hz. 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 Settings 6. Stitch Selection Guide 7. Threading and Bobbin Winding 8. Maintenance & Cleaning 9. Accessories Included 10. Safety Information 11. Troubleshooting

Features at a Glance

Key components: Heavy-duty metal frame, built-in stitch patterns, automatic needle threader, top drop-in bobbin, free arm, accessory storage, and LED lighting.

Feature	Description
Built-in Stitches	32 stitches including utility, decorative, and stretch
One-Step Buttonhole	Automatically creates buttonholes in one step
Automatic Needle Threader	Easily threads needle with lever mechanism
Top Drop-in Bobbin	Easy bobbin insertion with clear cover
Free Arm	Removable extension table for sewing cuffs and sleeves
Stitch Length/Width Control	Adjustable via dials for customization
Presser Feet	Includes all-purpose, zipper, buttonhole, and button sewing feet
LED Light	Bright illumination of sewing area
Power/Speed Control	Foot pedal with variable speed control
Reverse Stitch Lever	For reinforcing seams

Unpacking and Setup

Unpack and inspect contents. Place on stable, flat surface.

Remove machine and accessories from packaging.
Attach power cord to machine and plug into wall outlet.
Install foot pedal and connect to machine.
Attach extension table (free arm) if removed.
Insert needle securely with flat side to the back.

WARNING! Machine is heavy; lift with care. Ensure power is off during setup.

First-Time Operation

Power on machine; follow threading guide.

Wind bobbin: Place thread on spool pin, wind bobbin using bobbin winding system.
Thread upper thread: Follow numbered path on machine; use automatic needle threader.
Insert bobbin: Place bobbin in case with thread clockwise; drop into compartment.
Select stitch: Turn stitch selection dial to desired pattern.
Test sew: Use scrap fabric to adjust tension and stitch settings.

CAUTION! Keep fingers away from needle during operation. Always turn power off when threading.

Specifications

Model: HD6380M Heavy Duty
Stitches: 32 built-in (6 basic, 7 stretch, 19 decorative)
Buttonholes: 1 one-step automatic
Max Stitch Length: 4mm
Max Stitch Width: 5mm
Speed: Up to 1100 stitches per minute
Bobbin: Top drop-in, Class 15 transparent
Needle: HAx1 or 15x1 household needles
Lighting: LED bulb
Power Supply: 110-120V AC, 60Hz
Warranty: 25-year limited warranty

Controls and Settings

Access controls via dials and levers on front and side.

Front Panel: Stitch selection dial, stitch length dial (0-4), stitch width dial (0-5), reverse stitch lever, thread tension dial (0-9).

Side/Back: Power switch, bobbin winder spindle, handwheel, presser foot lifter, automatic needle threader lever.

Settings: Adjust stitch length for fabric thickness (higher number = longer stitch). Adjust stitch width for zigzag and decorative stitches. Adjust thread tension (4 is normal; increase for lighter fabric, decrease for heavier).

Stitch Selection Guide

Use stitch chart on machine or manual for recommended applications.

Straight Stitch (1-3): General sewing, seams.
Zigzag Stitch (4-6): Overcasting, stretch fabrics.
Decorative Stitches (7-25): Trims, hems, embellishments.
Stretch Stitches (26-32): Knits, elastic, activewear.
Buttonhole (B): Use buttonhole foot; automatic sizing.

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

Threading and Bobbin Winding

Supports standard polyester, cotton, or nylon threads.

Bobbin winding: Place thread on spool pin, guide through tension disc, wind onto bobbin until full.
Upper threading: Follow numbered path from spool pin to needle; use automatic threader.
Bobbin insertion: Drop bobbin into case with thread pulling clockwise; pull thread under tension spring.
Bring up bobbin thread: Hold upper thread, turn handwheel toward you to catch bobbin thread; pull both threads under presser foot.

WARNING! Ensure presser foot is raised when threading. Do not force thread through needle.

Maintenance & Cleaning

Unplug before cleaning. Remove lint and dust regularly.

Remove needle plate screws; lift plate to access bobbin area.
Use small brush to remove lint from feed dogs, bobbin case, and hook race.
Wipe exterior with soft, dry cloth.
Oil moving parts as per manual (use sewing machine oil only).

CAUTION! Do not use compressed air or liquids. Store in dry place.

Accessories Included

Standard accessories provided with machine.

All-Purpose Foot
Zipper Foot
Buttonhole Foot
Button Sewing Foot
Seam Ripper/Lint Brush
Needles (set of 3)
Bobbin (4 empty Class 15)
Screwdriver
Spool Pin Felt
Power Cord & Foot Pedal

Safety Information

UL Listed: Complies with safety standards for household use. Always unplug when not in use, during maintenance, or when changing needles. Keep away from children. Use correct needle and thread for fabric. Avoid contact with moving parts.

For support, visit www.singer.com or contact 1-800-4-SINGER.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Thread bunching underneath	Incorrect threading/bobbin	Re-thread upper and bobbin threads; ensure bobbin inserted correctly.
Needle breaks	Wrong needle/bent needle	Replace needle; ensure it is inserted fully and straight.
Machine not feeding fabric	Feed dogs lowered/thread jam	Check feed dog position; clean lint from feed dogs.
Uneven stitches	Incorrect tension/thread	Adjust tension dial; use same weight thread top and bottom.
Machine won't start	Power/pedal issue	Check power cord connection; ensure foot pedal is plugged in.

Reset: Turn power off, unplug for 1 minute, then restart.

Service: 1-800-4-SINGER; www.singer.com