Singer Quantum LE Sewing Machine Manual

The Singer Quantum LE is a computerized sewing machine featuring automatic needle threading, built-in stitches, LCD display, adjustable stitch length and width, drop-in bobbin system, automatic tension control, built-in needle plate, free arm capability, LED lighting, and speed control slider. Powered by 120V AC, 60Hz. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation & Setup 3. First-Time Operation 4. Specifications 5. Controls and Settings 6. Stitch Selection 7. Threading & Bobbin 8. Maintenance & Cleaning 9. Accessories 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: LCD display, automatic needle threader, stitch selection dial, speed control slider, bobbin winder, free arm, LED work light.

Feature	Description
Automatic Needle Threader	Easy threading with push-button mechanism
Built-in Stitches	Multiple stitch patterns including utility, decorative, and stretch
LCD Display	Shows selected stitch, length, and width settings
Drop-in Bobbin	Top-loading bobbin system with clear cover
Speed Control Slider	Adjustable sewing speed from slow to fast
Free Arm	Removable extension table for cylindrical sewing
LED Work Light	Bright illumination of sewing area
Automatic Tension	Computer-controlled thread tension
Stitch Length/Width	Adjustable settings for customization
Reverse Stitch	Button for reinforcing stitches

Installation & Setup

Unpack and inspect contents. Place on stable surface.

Remove all packaging materials and protective covers
Attach power cord to machine and plug into AC outlet
Install foot controller (if included)
Attach extension table for flat sewing surface
Install needle following manufacturer's instructions

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

First-Time Operation

Power on machine; follow setup procedure.

Thread machine: Follow threading guide printed on machine
Wind bobbin: Place thread on spool pin and wind bobbin
Insert bobbin: Drop bobbin into case with thread clockwise
Select stitch: Turn dial to desired stitch pattern
Test sew: Use scrap fabric to test settings

CAUTION! Always start with needle in highest position. Use proper needle for fabric type.

Specifications

Stitches: 100+ built-in stitches including utility, decorative, and buttonhole
Stitch Length: Adjustable 0-4mm
Stitch Width: Adjustable 0-7mm
Speed: Up to 850 stitches per minute
Needle Positions: Multiple positions including center and left
Bobbin: Class 15 transparent bobbin
Lighting: LED work light
Power Source: 120V AC, 60Hz
Warranty: 25-year limited warranty

Controls and Settings

Access functions via control panel and dials.

Control Panel: Power switch, stitch selection dial, stitch length/width adjusters, reverse stitch button, needle up/down button.

Stitch Settings: Length (0-4mm), Width (0-7mm), tension adjustment. Display: LCD shows stitch number, length, width settings. Special Functions: Automatic needle threader, bobbin winding, thread cutter.

Stitch Selection

Choose from built-in stitch patterns.

Turn stitch selection dial to desired pattern number
Check LCD display for stitch confirmation
Adjust stitch length and width as needed
Test on scrap fabric before sewing project
Use reverse stitch to secure beginnings and endings

Tip: Refer to stitch guide for recommended settings for different fabrics.

Threading & Bobbin

Proper threading ensures smooth operation.

Raise presser foot and needle to highest position
Follow numbered threading path on machine
Use automatic needle threader for easy threading
Wind bobbin ensuring even thread distribution
Insert bobbin with thread moving counter-clockwise
Pull bobbin thread up through needle plate

WARNING! Always thread with power off. Ensure proper thread tension.

Maintenance & Cleaning

Regular maintenance ensures optimal performance.

Unplug machine before cleaning
Remove needle plate to clean lint buildup
Oil moving parts as per manufacturer instructions
Clean bobbin area regularly
Check needle for damage before each use

CAUTION! Use only Singer recommended oils and cleaners.

Accessories

Included accessories for various sewing tasks.

Accessory	Use
All-purpose foot	General sewing
Zipper foot	Installing zippers
Buttonhole foot	Creating buttonholes
Blind hem foot	Invisible hemming
Seam ripper	Removing stitches
Needles	Various sizes for different fabrics
Bobbins	Extra bobbins for thread colors
Screwdriver	Needle and foot changes

Regulatory Information

UL Listed: Complies with UL safety standards. FCC Part 15: Class B digital device. Copyright © 2024 Singer Manufacturing Company. All rights reserved. For support, visit www.singer.com or contact 1-800-4-SINGER.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Thread breaking	Incorrect threading/tension	Re-thread machine; adjust tension; check for burrs on needle
Skipped stitches	Wrong needle/damaged needle	Replace needle; ensure correct needle for fabric type
Machine jams	Thread buildup/poor quality thread	Clean bobbin area; use quality thread; re-thread
Uneven stitches	Incorrect tension/threading	Check upper and lower threading; adjust tension
No power	Power cord/foot controller	Check power connection; ensure foot controller is plugged in
Bobbin issues	Incorrect winding/insertion	Rewind bobbin evenly; ensure proper insertion direction

Reset: Turn machine off and on to reset computer functions.

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